The very best moveable SSDs for 2025

Whether or not you are backing up necessary recordsdata, modifying movies on the go or simply releasing up area in your laptop computer, a quick and dependable SSD drive could make your workflow an entire lot smoother. The very best moveable SSD choices in 2025 mix velocity, sturdiness and vast compatibility, typically utilizing USB Sort-C connections for fast transfers throughout units. In contrast to a standard thumb drive and even the most effective exterior exhausting drives, these compact powerhouses can provide quicker learn speeds, typically hitting a number of hundred and even 1000’s of Mbps, particularly with high-performance NVMe SSD fashions.

Whether or not you are managing giant recordsdata or launching apps immediately out of your drive, we have rounded up the most effective SSDs that ship glorious efficiency with out weighing you down.

Desk of contents

Greatest exterior SSDs for 2025

Picture by Jeff Dunn / Engadget

Capacities: 1TB, 2TB | Measurement: 2.74 x 1.28 x 0.53 inches | Weight: 1.01 ounces | USB interface: USB 3.2 Gen 2 | Controller/bridge chip: Silicon Movement SM2320 | NAND kind: TLC | Rated most sequential speeds: 1,050 MB/s learn, 1,000 MB/s write | Guarantee: 5 years

The Kingston XS1000 performs equally to the Essential X9 Professional however typically retails for much less, so it’s a superb different if you wish to avoid wasting money. A 1TB mannequin is on the market for $75 as we write this, which is $20 lower than the X9 Professional, whereas the 2TB model is right down to $120, which is a roughly $30 drop. There’s no 4TB choice, although.

At these costs, the XS1000 is an effective worth for on a regular basis backups and transfers. It stored up with or barely edged the X9 Professional throughout our benchmarks: In our customized file switch take a look at, for instance, its reads have been a second quicker, whereas its writes have been solely six seconds slower. (The 2 drives seem to have comparable internals and are based mostly on an analogous controller — the Silicon Energy SM2320G — so this is probably not an enormous shock.) It topped each USB 3.2 Gen 2 drive we examined in 3DMark’s gaming storage benchmark as nicely. It’s barely thicker than the X9 Professional however nonetheless splendidly moveable, with its stubby rectangular design weighing simply over an oz.. Just like the Essential drive, it’s backed by a five-year guarantee.

The place Kingston’s mannequin falls behind Essential’s X9 Professional is within the extras. There’s no formal IP or drop rankings, so we wouldn’t really feel as comfy chucking it round on the go. It lacks hardware-based encryption, and it solely comes with a USB-C to A cable, so that you’ll want to produce your individual adapter in case your laptop computer solely has USB-C ports. It doesn’t keep fairly as cool because the X9 Professional with steady use, and its sustained write efficiency isn’t as quick both, so it’s price paying up if you happen to plan to recurrently copy lots of of gigabytes to the SSD (and may’t simply get a higher-class mannequin). For the cash, although, all of this can be simpler to miss.

Execs

• Quicker than most 10 Gbps drives we examined
• Aggressively priced
• Extremely moveable
• 5-year guarantee

Cons

• No formal water-resistance or drop safety
• No USB-C to C cable within the field
• Solely obtainable in 1TB or 2TB
• Slower sustained write efficiency than X9 Professional with very giant recordsdata

$80 at Amazon

Picture by Jeff Dunn / Engadget

Capacities: 1TB, 2TB, 4TB | Measurement: 4.13 x 2.52 x 0.62 inches (with fan off), 4.82 x 2.52 x 0.62 inches (with fan on) | Weight: 6.4 ounces | USB interface: USB4 (40 Gbps) | Controller/bridge chip: Asmedia ASM2464PD | NAND kind: TLC | Rated most sequential speeds: 3,800 MB/s learn, 3,700 MB/s write | Guarantee: 5 years

Should you’re a media editor, IT skilled or simply an fanatic prepared to pay for a considerably quicker moveable SSD, get the . It makes use of the newer USB4 interface and blew away each non-40 Gbps drive we examined throughout our benchmark assessments.

In AmorphousDiskMark, for instance, the Essential X9 Professional delivered sequential reads and writes round 1,015 MB/s and 950 MB/s, respectively; with the SE920, these have been about 3,350 MB/s and three,125 MB/s. In our customized blended file switch take a look at, we have been capable of transfer our 70GB folder to our MacBook in 32 seconds; with the X9 Professional, that course of averaged about 81 seconds. Writing the folder to the drive, in the meantime, was about 30 seconds quicker. Should you’re shopping for an exterior SSD to maneuver round giant chunks of knowledge, this type of leap provides up.

The drive itself is considerably larger and thicker than both of our picks above, but it surely’s not so giant that we’d name it unwieldy. It’s in regards to the dimension of a deck of playing cards, so it’ll match higher in a bag than a pants pocket. Past that, the brushed steel exterior feels crisp to the contact, and ADATA helps the gadget with a five-year guarantee.

That mentioned, this factor can get severely sizzling. The design features a built-in micro fan to assist dissipate warmth, which you activate simply by clicking the case down; that’s intelligent, but it surely’s not sufficient to maintain the drive cool by itself. All of this comes at a value premium, too, with a 1TB mannequin at the moment obtainable for $180. But when efficiency is the one factor that issues to you, it needs to be worthwhile.

Execs

• Blazingly quick 40 Gbps efficiency
• Slick steel enclosure
• Smaller than different USB4 and Thunderbolt SSDs we examined
• Intelligent built-in fan
• 5-year guarantee

Cons

• Will get sizzling even with fan activated
• Pricier and nonetheless bigger than different picks
• Requires USB4 port to succeed in most speeds

$180 at Amazon

Different exterior SSDs we examined

The pre-built OWC Express 1M2 is a premium-feeling USB4 SSD that’s roughly as quick because the ADATA SE920, but it surely’s bigger and considerably dearer as of this writing.

Should you’re within the comparatively small group with a PC that helps USB 3.2 Gen 2×2 however not Thunderbolt or USB4, the Crucial X10 Pro is basically a quicker model of our prime choose. The Lexar SL600 is a bigger however barely faster choice, whereas the Lexar SL500, Kingston XS2000 or Samsung T9 might additionally work if you happen to see them on low cost. As a reminder, although, drives like these are aimed primarily at content material creators and different professionals, and you must be sure you received’t improve to a tool with a quicker USB interface anytime quickly.

The Samsung T7 Shield has a conveniently rugged design with a rubberized, IP65-rated shell. It additionally comes with each USB-C and USB-A cables. Nevertheless it was persistently slower than the X9 Professional and XS1000 in our benchmark assessments, plus it has a shorter three-year guarantee.

The Silicon Power PX10 is an particularly inexpensive USB 3.2 Gen 2 mannequin. Its peak speeds weren’t too far off the X9 Professional or XS1000 in artificial benchmarks, however it may well get distractingly sizzling and its sustained writes are markedly worse. It took 50 seconds longer to maneuver our 70GB customized take a look at folder to this drive in comparison with the X9 Professional, for instance.

The Crucial X6 is one other low-cost choice that’s a superb bit slower than our prime picks. It’s restricted to a three-year guarantee and lacks an IP score as nicely. It’s not a horrible choice for the fundamentals, however there’s little cause to get it over the XS1000 when their costs are comparable.

The OWC Envoy Pro FX is well-built and helps Thunderbolt 3 and USB 3.2 Gen 2, but it surely’s a smidge slower than the SE920 and Specific 1M2, and it’s a lot pricier than the previous.

What to contemplate earlier than shopping for an exterior SSD

Capability

The very first thing to determine earlier than shopping for a conveyable SSD is simply how a lot space for storing you want. Many of the SSD drives we thought-about for this information can be found in capacities starting from one to 4 terabytes, although loads of smaller and bigger choices exist.

There’s no hard-and-fast rule for which dimension is “finest” — that’ll finally rely in your funds and what precisely you’re trying to stash. However generally, it’s higher to overcompensate than underdo it. No one needs to be compelled into shopping for a second drive as a result of they crammed the primary one up too shortly. Should you’re backing up a PC, a superb rule of thumb is to purchase an exterior SSD with twice as a lot area as your laptop’s inner storage. This manner, it can save you at the least one full backup whereas additionally having room for extra information. If you wish to retailer a bunch of PlayStation or Xbox video games with big set up sizes, chances are you’ll want more room. Should you simply wish to again up a small assortment of recordsdata, chances are you’ll be higher off saving your money and simply getting a smaller USB flash drive or thumb drive as an alternative, which aren’t fairly the identical as the most effective moveable SSDs we examined for this information.

Value

Generally, you get a greater price-per-gigabyte ratio the additional you go up the capability ladder. As of this writing, the 1TB Samsung T9 is priced at $130, or $0.13 per gigabyte (GB), whereas the 4TB version is on the market for $297 or $0.07 per GB. That technically makes the bigger mannequin a greater “worth,” however not everybody must pay that rather more upfront.

SSDs in the identical velocity class are inclined to not range too wildly by way of efficiency, so a part of our decision-making for this information got here right down to which of them are sometimes the most affordable. However costs can fluctuate over time; if you happen to see that one in every of our prime picks is priced method greater than a comparable honorable point out, be at liberty to get the latter. At this time limit, prices are broadly trending upwards for even the most effective SSDs.

Velocity and USB interface

Nearly all exterior SSDs are considerably quicker than mechanical exhausting disk drives (HDDs), so that you’ll save time ready for recordsdata to switch and video games to load it doesn’t matter what. Throughout the market, nevertheless, there are distinct efficiency tiers. These are outlined largely by the USB interface a drive helps. Whereas the entire SSDs we thought-about for this information can join over USB Sort-C, some USB-C connections can provide quicker switch speeds than others. Sorting by means of this may get actual complicated actual quick, so we’ll attempt to put it in easy phrases.

You may basically divide right now’s crop of moveable SSDs into totally different segments. On the very prime are drives that make the most of the (comparatively) new Thunderbolt 5 commonplace, which has a theoretical most switch price of 80 gigabits per second (Gbps). (You might even see it promote speeds as much as 120 Gbps, however that enhance doesn’t apply to storage units.) However moveable SSDs that support this tech solely simply began to trickle out towards the tip of 2024, and the marketplace for units with Thunderbolt 5 ports remains to be fairly limited, with probably the most notable exceptions being Apple’s top-end Macs with an M4 Professional or M4 Max chip.

Thunderbolt 5 is constructed on a spec referred to as USB4, which may technically attain as much as 80 Gbps as nicely however is extra sometimes obtainable in a taste that tops out at 40 Gbps. Moveable SSDs based mostly on that commonplace began to roll out towards the tip of 2023 however are nonetheless comparatively rare. The older Thunderbolt 3 and Thunderbolt 4, which different high-end exterior SSDs proceed to make use of, assist the identical 40 Gbps most.

A third model of USB4, in the meantime, maxes at 20 Gbps, as does an older but extra steadily used commonplace referred to as USB 3.2 Gen 2×2. Beneath that’s USB 3.2 Gen 2, which maxes at 10 Gbps. Then there’s USB 3.2 Gen 1, which is capped at 5 Gbps. Lastly, we’ll bundle collectively SSDs that use older requirements and aren’t price contemplating right here.

To make this straightforward: For on a regular basis of us, a superb USB 3.2 Gen 2 drive is the candy spot between fast-enough efficiency, wide-enough compatibility and cheap-enough value, so these make up our major suggestions above. Should you work in a artistic subject or don’t thoughts paying additional to shave seconds off your giant file transfers, although, a “higher-tier” mannequin would make sense. Nonetheless, word that precise computer systems that make the most of USB 3.2 Gen 2×2 aren’t tremendous widespread — no Mac helps it, for one — and the interface is successfully being changed by USB4.

Generally, your chain is barely as robust as its weakest hyperlink: In case your laptop solely has USB 3.2 Gen 2 ports, for instance, you possibly can nonetheless use a Thunderbolt SSD, however you received’t get past Gen 2 speeds. Be sure you know what you’re working with before you purchase.

As a refresher, storage units are broadly measured by way of learn speeds and write speeds. The previous refers to how lengthy it takes to entry one thing from the drive; the latter, how lengthy it takes to save lots of one thing to it. From there, you possibly can break these metrics into sequential and random efficiency. Sequential speeds are inclined to matter extra with moveable SSDs, since most individuals use them to save lots of or entry lengthy, fixed streams of knowledge resembling a bunch of high-res photographs. Random speeds could be necessary if you wish to run video video games or apps off the drive, since that’d contain studying and writing smaller, extra scattered recordsdata. Both method, how nicely an SSD can maintain its efficiency with prolonged use can be essential.

Different efficiency elements and enclosures

A contemporary moveable SSD’s speeds aren’t nearly its USB interface, although. Its efficiency may also rely upon how superior its controller is, whether or not it has a local USB flash controller or a separate bridge chip to speak with a number gadget, the type and high quality of NAND flash reminiscence it makes use of, whether or not it has a DRAM cache or it’s DRAM-less, and extra.

We’re simplifying issues, however listed here are some fast ideas: Drives with triple-level cell (TLC) reminiscence aren’t as low cost as quad-level cell (QLC) SSDs, however they’re typically extra dependable they usually provide higher write efficiency. Having a devoted DRAM cache helps if you happen to plan to hit your drive with extra intense, sustained workloads, however is probably not price the additional value for most individuals. Some fashions with native flash controllers could not carry out in addition to these with a bridging chip, relying on the SSD inside, however they sometimes draw much less warmth and are bodily smaller. All of that is to say that an exterior SSD’s speeds aren’t fairly as simple as what the producer chooses to promote on the field.

It’s additionally price remembering which you could flip an inner SSD into a conveyable resolution with a superb enclosure. If in case you have a spare drive and don’t thoughts going the DIY route, this could be a cheaper and extra versatile resolution, although we’ve caught to pre-built fashions for this information for the sake of simplicity.

Measurement, sturdiness, endurance and guarantee

Most moveable SSDs are impressively small and light-weight, so that they received’t be tough to tuck in a bag (or perhaps a pocket) and tackle the go. We word above if any drive is bulkier than normal.

Nothing we’re speaking about issues in case your drive can’t final in the long run. It’s exhausting to definitively say which exterior SSDs are probably the most dependable, however we scoured by means of consumer critiques and suggestions whereas researching this information to make sure none of our picks present a sample of catastrophic errors. If there was an excessive amount of smoke round a selected mannequin, we steered clear. We dominated out sure drives from SanDisk and Western Digital, as an illustration, after experiences from Ars Technica and The Verge famous a difficulty that led to information loss (and lawsuits) in 2023.

That mentioned, one of many huge causes you’d purchase an SSD generally is its superior sturdiness. As a result of it has no transferring mechanical elements inside, an SSD has far fewer avenues to failure than an exterior exhausting drive. You continue to don’t wish to be careless with them, however an unintentional drop shouldn’t be the tip of the world.

Some moveable SSDs construct on this inherent ruggedness with plastic or rubberized casings and extra sturdy waterproofing. These aren’t essential for everybody, however if you happen to’re a frequent traveler or somebody who typically works outdoor, there are alternatives for you.

Nonetheless, all drives can fail. If in case you have any kind of information you’d be distraught to lose, you must again it up recurrently, then make a second backup, ideally with a cloud service. Alongside these protecting strains, we additionally took word of the guarantee coverage for every drive we examined. Nearly all of them are backed for both three or 5 years; in fact, longer is healthier.

Encryption and software program

It’s not unusual to retailer delicate information on a conveyable SSD, so some fashions provide additional security measures like hardware-based encryption — i.e., direct scrambling of knowledge saved on the drive itself — built-in keypads and fingerprint readers to guard towards unauthorized entry if the drive is misplaced or stolen. Whereas not prime necessities, perks like these are definitely good to have. Some SSDs additionally include companion software program to additional handle the drive. The very best of these might be helpful to have round, however we wouldn’t name them important.

How we take a look at exterior SSDs

Sadly, we didn’t have entry to a tool that may make full use of USB 3.2 Gen 2, USB 3.2 Gen 2×2 and Thunderbolt/USB4 speeds interchangeably, so we needed to break up our testing throughout a number of units, together with an M1 Professional MacBook Professional and an Alienware gaming PC operating Home windows 11. Due to this, we primarily in contrast the moveable SSDs inside every “class” towards each other. Earlier than switching OSes, we reformatted every drive to every platform’s commonplace file system format: APFS for macOS and NTFS for Home windows.

After researching which SSDs had sufficient constructive suggestions to be price testing within the first place, we put 13 drives by means of a spread of artificial and “real-world” benchmark assessments. On Home windows, these included CrystalDiskMark, PCMark 10’s Knowledge Drive Benchmark and 3DMark’s gaming-focused Storage Benchmark. On macOS, we used AmorphousDiskMark (successfully a Mac model of CrystalDiskMark), BlackMagic Disk Speed Test and ATTO Disk Benchmark.

We additionally timed how lengthy it took for every drive to learn and write a customized 70GB folder crammed with roughly 11,500 totally different recordsdata, together with photographs, movies, music recordsdata, PDFs and different giant and small information sorts scattered throughout quite a few subfolders. We carried out a number of passes for every take a look at to keep away from irregularities, and we stored observe of every SSD’s warmth ranges over the course of the entire suite. Our course of wasn’t an ideal science, but it surely gave us a common sense of how every drive compares to different fashions in its value and efficiency vary.

Current updates

February 2025: We’ve checked to make sure the pricing data and hyperlinks on this information are nonetheless correct. We’ve additionally added particulars on the (comparatively) new Thunderbolt 5 interface, which has been applied in a pair latest moveable SSDs just like the OWC Envoy Ultra and LaCie Rugged SSD Pro5. We’ll look to incorporate testing notes for these for our subsequent replace, as they ought to be quicker than the ADATA SE920, our present premium choose, albeit for a a lot greater value. For now, although, our prime picks stay the identical.

October 2024: We’ve taken a sweep by means of this information to make sure all pricing and availability data remains to be appropriate. Our suggestions are unchanged.