5 Best SSD + HomeBase Options for eufy SoloCam S340

• eufy SoloCam S340 Local Storage Buying Guide

Your eufy SoloCam S340 can detect and record important activity around your home; but limited storage can become a problem when you need to review an older event and discover that the footage has already been overwritten.

The obvious solution may seem to be buying a microSD card. However, the SoloCam S340 does not include a microSD card slot. To substantially expand its local recording capacity, you need to connect the camera to a compatible eufy HomeBase 3 and install an appropriate storage drive inside the HomeBase.

One of the most common mistakes is assuming every security camera expands storage the same way. While the SoloCam S340 relies on HomeBase 3 for larger local storage, many other cameras record directly to a removable memory card. If you're unsure which approach your camera uses, our guide explains when a security camera needs a microSD card instead and how to avoid buying storage that isn't compatible with your security system.

That is where the buying process becomes confusing. HomeBase 3 accepts a particular type of internal drive, SSD capacities vary widely, and a storage setup that makes sense for one S340 may be unnecessarily expensive; or too small; for a growing multi-camera system.

Expanding HomeBase storage can help preserve more footage locally, but local recording and internet independence are not exactly the same thing. If weak or unreliable connectivity is part of your concern, our guide to security cameras that can keep recording without constant Wi-Fi explains which systems can continue saving footage during an internet interruption and which functions, such as remote alerts, live viewing, or app access, may still depend on an active connection.

How Much Storage Does Your eufy S340 Actually Need?

Think about how you use your camera. One SoloCam S340 recording occasional motion events does not have the same storage requirements as several eufy cameras monitoring a busy driveway, entrance, backyard, and side passage.

Choosing too little capacity can cause older recordings to be replaced sooner than expected. Choosing far more than your system needs can make you spend considerably more without producing better video quality, stronger detection, or faster alerts.

Expanding your HomeBase storage is only one part of improving outdoor security. If you're also comparing dedicated floodlight cameras for areas such as driveways or garages, our Ring Floodlight Cam Wired Plus review examines whether a hardwired floodlight camera is a better fit than a battery-powered security camera, helping you choose the right solution before planning long-term storage capacity.

The SSD also does not improve the S340’s camera resolution. Its purpose is to give HomeBase 3 more room to retain compatible recordings, making it easier to build a larger local archive without depending entirely on cloud storage.

What We’ll Help You Decide

• Best overall setup: which HomeBase 3 and SSD combination offers the strongest balance of reliability, capacity, simplicity, and value for most SoloCam S340 owners.
• HomeBase 3 compatibility: which HomeBase works with the S340 and why older HomeBase models should not automatically be treated as interchangeable storage upgrades.
• Correct SSD type: how to avoid incompatible M.2 and NVMe drives by choosing the proper 2.5-inch SATA form factor.
• 1TB versus larger capacities: when a 1TB SSD is already enough and when additional capacity becomes more useful for several cameras or a longer recording history.
• SSD versus HDD: whether quiet operation and lower power use are worth paying more for, or whether a larger mechanical drive gives you better storage value.
• Best value for your system: where spending more can improve long-term confidence and where an affordable SATA SSD may already provide all the storage your S340 setup needs.

Below, we compare five practical storage options built around the SoloCam S340 and HomeBase 3. Rather than ranking drives only by advertised speed, we focus on the question that matters more for a security system:

For most S340 owners, the smartest starting point is not the largest SSD available. A dependable 1TB 2.5-inch SATA SSD paired with HomeBase 3 usually provides a practical balance between storage space, quiet operation, and total cost.

However, households with several cameras, frequent motion activity, or a preference for keeping a longer recording history may benefit from a larger drive. The five options below are designed to help you choose based on the security system you actually have; not simply the highest capacity printed on the box.

Quick Comparison: 5 Best HomeBase & SSD Storage Upgrades for eufy SoloCam S340

Not every storage upgrade solves the same problem. Some drives are designed for buyers who want the most dependable long-term solution, while others focus on maximizing storage without stretching the budget. Before looking at individual reviews, compare the five options side by side to see which one best matches your recording needs, future expansion plans, and budget.

Instead of choosing based only on advertised speed or capacity, think about how you actually use your SoloCam S340. A single camera monitoring a quiet entrance has very different storage requirements from a HomeBase 3 connected to several cameras recording activity throughout the day.

Which Storage Upgrade Delivers the Best Long-Term Value?

The most expensive drive isn't automatically the smartest purchase. A storage upgrade should match the size of your security system today while leaving enough room for tomorrow. Spending wisely now can prevent having to replace the drive later as your HomeBase grows.

A 1TB drive becomes more useful when your HomeBase is supporting more than one camera. If you are still deciding which models should join your current S340, our guide to the best cameras to pair with SoloCam S340 and HomeBase 3 compares outdoor, solar, wired, and multi-camera options so you can estimate your future recording workload before choosing the final SSD or HDD capacity.

For most homeowners, a dependable 1TB SATA SSD offers an excellent balance between storage capacity, responsiveness, quiet operation, and long-term reliability. It provides enough room for everyday recording without paying for capacity that many smaller systems may never fully use.

Budget-conscious buyers still have excellent choices. If your HomeBase will primarily support one SoloCam S340, a 500GB SSD may already provide all the storage you need. On the other hand, if maximizing storage while spending as little as possible is your priority, a traditional 1TB hard drive remains a practical alternative.

If you're still deciding whether to upgrade only the storage or your entire HomeBase setup, it helps to compare complete hardware combinations before buying. Our guide to the best HomeBase and SSD combinations for SoloCam S340 compares different HomeBase options alongside compatible SSD upgrades, helping you choose a setup that matches your current cameras while leaving room for future expansion.

Our Top Recommendation: Samsung 870 EVO 1TB + HomeBase 3

If we were building a HomeBase 3 storage upgrade specifically for the eufy SoloCam S340, this is the combination we would purchase first. The Samsung 870 EVO isn't our recommendation because it advertises the highest speeds or carries the biggest brand name. It earns the top position because it strikes the best balance between reliability, capacity, long-term durability, and overall ownership experience.

Security footage is different from ordinary computer files. Every motion event, visitor detection, package delivery, or unexpected activity depends on storage that works consistently day after day. A drive that performs well during the first week but becomes unreliable after months of continuous use is not a smart investment for a security system.

That is exactly where the Samsung 870 EVO separates itself. It combines mature firmware, dependable NAND technology, excellent endurance, and one of the strongest reputations in the SATA SSD market. When paired with HomeBase 3, it creates a storage solution designed to support your cameras for years rather than simply increasing capacity today.

If your long-term plan includes protecting more than one entrance, driveway, or backyard area, storage is only one part of the decision. Choosing the right cameras is equally important. If you're also comparing wireless outdoor systems outside the eufy ecosystem, our guide to the best Aosu outdoor security cameras for larger properties compares solar models, floodlight cameras, and multi-camera kits that can cover different parts of your home with local storage options.

Why We Recommend the Samsung 870 EVO Above Every Other Drive

• Excellent balance of capacity and value: 1TB provides enough room for most SoloCam S340 owners while avoiding the unnecessary cost of larger capacities that many households never fully utilize.
• Built for continuous operation: security systems rarely stop recording. The 870 EVO's proven endurance makes it well suited for a HomeBase that remains powered around the clock.
• Reliable Samsung V-NAND technology: instead of focusing only on performance, Samsung has built a reputation for maintaining consistent reliability over years of everyday use.
• Completely silent operation: unlike mechanical hard drives, there are no moving parts, resulting in quieter operation, lower heat generation, and improved resistance to vibration.
• Correct HomeBase 3 compatibility: its 2.5-inch SATA design installs directly into the HomeBase storage bay, eliminating the confusion many buyers have between SATA drives and incompatible NVMe or M.2 SSDs.
• Strong long-term investment: many buyers upgrade cameras over time. Starting with a dependable SSD now means your storage solution is ready to grow alongside the rest of your eufy system.
• Backed by one of the industry's strongest reputations: Samsung's long history in solid-state storage gives buyers additional confidence that extends well beyond benchmark performance.

  Storage becomes even more important as your HomeBase begins supporting more cameras. If you're still deciding which models to add after your SoloCam S340, our guide to the best outdoor eufy cameras for HomeBase 3 compares solar-powered, floodlight, and premium 4K options that work well with an expandable HomeBase ecosystem, helping you choose cameras before deciding how much storage your system will ultimately require.

Why We Prefer It Instead of Simply Choosing the Cheapest SSD

Price is important, but storage is one of the few components that every recording passes through. Saving a little money today may not feel worthwhile if you later wish you had purchased a drive with a stronger reliability record.

The Samsung 870 EVO is not dramatically faster than every other SATA SSD in this guide because HomeBase 3 itself limits real-world transfer speeds. The advantage comes from confidence. You are paying for proven hardware, mature firmware, excellent quality control, and a drive that has earned the trust of millions of users over many years.

If your next upgrade is adding wider outdoor coverage instead of installing more fixed cameras, it helps to choose those cameras before deciding how much storage your HomeBase will eventually need. Our guide to the best PTZ cameras for HomeBase 3 compares pan-and-tilt models with different zoom capabilities, helping you build a HomeBase system that balances camera coverage with the right SSD or HDD capacity.

That difference becomes increasingly valuable as more cameras are added to your HomeBase and your security system becomes more important to your household.

Where This Upgrade Makes the Most Sense

We especially recommend the Samsung 870 EVO for homeowners planning to build a complete HomeBase ecosystem rather than connecting only a single camera. Whether you eventually expand with additional SoloCam models, floodlight cameras, or other compatible eufy devices, the 1TB capacity provides room for your system to grow without immediately forcing another storage upgrade.

Even for a single SoloCam S340, the drive offers a comfortable amount of storage while maintaining the responsiveness and reliability expected from a premium SATA SSD.

Planning to expand your HomeBase is only part of building a better security system. If you're still deciding which cameras deserve that additional recording space, our guide to the best wireless home security cameras worth buying compares today's leading wireless models for different budgets, property sizes, power options, and local-storage features, helping you choose cameras before deciding how much SSD or HDD capacity you'll actually need.

But It Isn't Automatically the Best Choice for Everyone

Likewise, users focused purely on maximizing storage capacity for the lowest possible price may still prefer a traditional 2.5-inch hard drive, accepting slower performance in exchange for lower cost per terabyte.

Who Should Buy the Samsung 870 EVO?

Choose this SSD if you want the strongest combination of reliability, quiet operation, trusted engineering, and long-term confidence. It is particularly well suited for homeowners who expect their HomeBase 3 to become the center of their security system and prefer investing once in dependable hardware rather than replacing cheaper drives later.

For most SoloCam S340 owners, the Samsung 870 EVO delivers the most balanced upgrade in this guide, making it our clear overall recommendation for expanding HomeBase 3 storage.

Which HomeBase 3 Storage Drive Should You Choose for eufy SoloCam S340?

The best drive is not automatically the fastest, the largest, or the most expensive. The right choice depends on how many cameras will use HomeBase 3, how often they record, how long you want footage retained, and how much confidence you want in the storage hardware itself.

A single SoloCam S340 watching a quiet side entrance can work well with a smaller SSD. A HomeBase 3 collecting frequent recordings from several outdoor cameras needs more capacity and makes long-term drive reliability more important.

Choose the Samsung 870 EVO 1TB If You Want the Safest Overall Purchase

The Samsung 870 EVO 1TB is our preferred option for buyers who want to install one drive, build around HomeBase 3, and avoid wondering whether a cheaper SSD would have been the better long-term decision.

• Best overall balance: combines 1TB capacity, silent operation, proven SATA performance, and strong manufacturer confidence.
• Best for future expansion: gives one S340 plenty of room while remaining practical if more compatible eufy cameras are added.
• Best for risk-conscious buyers: Samsung's storage reputation and warranty positioning make it easier to trust with important local recordings.
• Best install-once option: suitable for homeowners who would rather pay more now than revisit the storage decision later.

Choose the WD Blue SA510 1TB If Brand Trust Matters but Price Decides the Winner

The WD Blue SA510 1TB is the most logical alternative when you want a familiar storage manufacturer but find the WD at a meaningfully better current price than the Samsung.

While an SSD is our preferred recommendation for most SoloCam S340 owners, it isn't automatically the best answer for every budget or recording style. If you're still comparing both storage types, our guide explains when an HDD makes more sense than an SSD by comparing long-term recording capacity, cost per terabyte, compatible 2.5-inch SATA drives, and the situations where a traditional hard drive can be the smarter HomeBase 3 upgrade.

• Established-brand alternative: gives buyers a recognized storage name without moving to a less familiar budget manufacturer.
• Same practical 1TB capacity: supports one S340 today and a larger camera setup later.
• Silent solid-state operation: avoids the noise, vibration, and mechanical movement of an HDD.
• Best when discounted: becomes especially persuasive when its live price sits clearly below the Samsung 870 EVO.

Choose the fanxiang S101 1TB If You Want the Most Storage for a Lower SSD Budget

The fanxiang S101 1TB is the strongest value choice for buyers who want to keep the full 1TB capacity but do not want to pay for a premium storage brand.

• Best budget 1TB SSD: preserves the useful capacity of the premium picks while reducing the entry cost.
• Better for expansion than 500GB: gives a growing camera system more breathing room before another storage upgrade is needed.
• Solid-state advantages remain: runs quietly and avoids the moving components of a mechanical drive.
• Relevant hub-use feedback: supplied customer material includes successful recognition and loop-recording use in a multi-camera hub.

Choose the PNY CS900 500GB If You Have One S340 and Want to Spend Less

The PNY CS900 500GB makes the strongest case when your system is small, recording activity is moderate, and buying 1TB would leave you paying for capacity you are unlikely to use.

• Best entry-level SSD: lowers the cost of moving from the S340's built-in storage to expandable HomeBase 3 storage.
• Best fit for one camera: sensible for a single S340 monitoring a quieter entrance, side yard, or backyard.
• Recognizable value brand: gives budget buyers a familiar manufacturer and a very large visible review base.
• Full SSD experience: remains silent, vibration-free, and more responsive than a mechanical HDD.

Choose the Seagate 1TB HDD Only When Its Price Justifies the Trade-Offs

The Seagate ST1000LM035 1TB HDD is the alternative for buyers who care primarily about obtaining 1TB through a traditional mechanical drive and are willing to accept a slower, less refined ownership experience.

• Full 1TB capacity: gives HomeBase 3 substantially more local storage than the S340 has on its own.
• Correct compact SATA format: uses a 2.5-inch laptop-style design rather than an incompatible 3.5-inch desktop drive.
• Useful when storage cost dominates: can make sense when the current price is clearly below all comparable SSD choices.
• Large customer-history signal: the supplied listing showed a very substantial review count.

Use This 30-Second Storage Decision

• Best overall and lowest regret risk → Samsung 870 EVO 1TB.
• Trusted brand at the better live price → WD Blue SA510 1TB.
• Lowest-cost path to a full 1TB SSD → fanxiang S101 1TB.
• One S340 and a smaller upfront budget → PNY CS900 500GB.
• Mechanical 1TB only when deeply cheaper → Seagate Mobile HDD.

What About HomeBase 3 Itself?

None of these drives installs directly into the SoloCam S340. The camera must first be connected to a compatible eufy HomeBase 3, and the HDD or SSD is then installed inside the HomeBase storage bay.

Before buying, confirm that you are purchasing a 2.5-inch SATA drive. Do not select an M.2, NVMe, PCIe, or 3.5-inch desktop model simply because it has a higher advertised speed or a lower price.

Don’t Let Limited Storage Decide Which Security Footage You Get to Keep

The SoloCam S340 can only protect you with the footage that is still available when you need it. Once older recordings are overwritten, adding more storage afterward cannot recover the event that has already disappeared.

That is why upgrading HomeBase 3 storage is not simply a technical improvement. It is a decision about how much recording history your security system can preserve before it begins replacing older clips.

You may not need to review weeks of footage every day. But when a package goes missing, a vehicle is damaged, an unfamiliar person returns to the property, or activity is discovered several days later, a larger local archive can become far more valuable than it seemed when nothing unusual was happening.

Why Upgrading Now Can Be Smarter Than Waiting

• Your recording archive starts growing immediately: footage recorded before the upgrade remains limited by the storage already available. The sooner the drive is installed, the sooner HomeBase 3 can begin using the additional capacity.
• You reduce the risk of discovering an event too late: homeowners do not always notice damage, trespassing, package theft, or repeated suspicious activity on the same day it occurs.
• You can prepare for additional cameras before adding them: expanding storage first prevents a growing eufy system from placing more recording pressure on limited capacity.
• The installation is easier to plan before storage becomes urgent: choosing the correct drive calmly is better than rushing to buy whatever is available after an important recording has already been overwritten.
• Local storage can reduce dependence on recurring cloud plans: a HomeBase 3 drive gives compatible recordings more room locally, allowing the hardware you already own to provide greater long-term value.
• SSD prices and availability can change: once you have identified the right model, checking the current offer lets you act when the price fits your budget rather than restarting the entire comparison later.

“My S340 Already Has Built-In Storage.”

The SoloCam S340’s built-in storage is useful for getting started, but it is not the same as having a larger expandable archive inside HomeBase 3. Built-in capacity may be sufficient for light event recording, yet it becomes easier to outgrow when activity increases or more cameras are added.

The question is not whether the built-in storage works. The better question is whether it gives you enough time to discover, review, and save an important event before older footage is replaced.

“I’ll Upgrade When I Add More Cameras.”

Waiting until the system grows sounds reasonable, but additional cameras can increase recording activity immediately. Installing the drive beforehand means the HomeBase is already prepared when a second, third, or fourth camera begins contributing footage.

A 1TB SSD such as the Samsung 870 EVO, WD Blue SA510, or fanxiang S101 gives you more flexibility than starting with the smallest possible capacity and replacing it soon after expanding the system.

“I’m Waiting for a Bigger Discount.”

Waiting for a lower price is reasonable when the upgrade is outside your budget. However, the cheapest listing is not always the best opportunity. A heavily discounted drive in the wrong format, from an unreliable seller, or with insufficient capacity can become more expensive than choosing the right product once.

Start by deciding which drive fits your system. Then compare the current price, seller, warranty, and availability. Promotions can change, so the opportunity is not a promise that a sale will disappear; it is the ability to act when a suitable drive reaches a price you are comfortable paying.

The Best Upgrade to Make Today

For most SoloCam S340 owners, we would choose the Samsung 870 EVO 1TB. It provides a practical amount of storage for one camera, leaves room for future expansion, operates silently, and carries the strongest overall confidence profile among the five drives compared.

The Samsung is not the only sensible purchase. The WD Blue SA510 becomes attractive when its live price is lower, the fanxiang S101 is our budget 1TB choice, and the PNY CS900 500GB is suitable for a smaller one-camera setup.

The Seagate 1TB HDD should be considered only when its price creates a substantial saving over the SSD alternatives. Otherwise, the quieter and more responsive solid-state options are easier to recommend.

Choose the Drive Before the Next Important Recording

You do not need the largest SSD available, and you do not need to rebuild your entire eufy system. You only need a compatible drive that matches your camera count, recording activity, and plans for expansion.

Once you have identified that drive, check the current Amazon price and confirm that the listing matches the exact capacity and 2.5-inch SATA form factor. Installing it now allows every future compatible recording to benefit from the additional HomeBase capacity.

Final Verdict: Which HomeBase 3 Storage Upgrade Should You Buy?

Choosing the right storage upgrade for your eufy SoloCam S340 isn't about finding the drive with the biggest number on the box. It's about selecting a storage solution that fits the way your security system is used today while leaving enough room for tomorrow.

Every drive in this guide can expand the local storage available through HomeBase 3, but each one is designed for a different type of homeowner. Buying the right drive now means fewer compromises later, whether you eventually add more cameras or simply want more confidence that important recordings remain available when you need them.

Our Final Recommendations by Buyer Type

• Best Overall ; Samsung 870 EVO 1TB
  Choose this if you want the storage upgrade that offers the highest level of long-term confidence, dependable solid-state performance, and enough capacity for both your current system and future camera expansion.
• Best Premium Alternative ; WD Blue SA510 1TB
  Ideal for buyers who prefer Western Digital storage products or find this drive available at a better current price than the Samsung.
• Best Budget 1TB SSD ; fanxiang S101
  A smart option for homeowners who want full 1TB capacity while keeping upgrade costs under control.
• Best Entry-Level SSD ; PNY CS900 500GB
  Well suited to a single SoloCam S340 where recording activity is moderate and paying for additional unused capacity doesn't make financial sense.
• Best Budget HDD ; Seagate Mobile 1TB
  Worth considering only when its price is significantly lower than the SSD alternatives and maximum storage value is more important than solid-state responsiveness.

One Last Buying Tip Before You Order

Before adding any drive to your cart, verify three things:

• It is a 2.5-inch SATA drive.
• You already own, or are purchasing, a eufy HomeBase 3, because these drives install inside the HomeBase; not inside the SoloCam S340 itself.
•  The capacity matches your future plans, not just today's camera count.

Our Advice If You Still Can't Decide

If you're still comparing the five products, keep the decision simple.

For the majority of SoloCam S340 owners, the Samsung 870 EVO 1TB offers the easiest recommendation because it balances capacity, reliability, silent operation, customer confidence, and long-term ownership better than any other drive in this comparison.

If the Samsung is outside your budget, move down through the rankings rather than buying randomly. Every alternative in this guide was selected because it fills a different need, allowing you to choose based on budget, storage requirements, and future expansion instead of marketing claims alone.

Ready to Upgrade Your HomeBase 3?

Check today's price for our recommended storage upgrade below. If the current offer fits your budget, it's a practical time to expand your HomeBase 3 and give your SoloCam S340 more room to keep the recordings that matter most.

Frequently Asked Questions

Choosing the right storage upgrade for your eufy SoloCam S340 can be confusing, especially since the camera itself uses built-in storage while larger local storage requires HomeBase 3. Below are answers to the questions buyers ask most before purchasing an SSD or HDD.