The T5 EVO is a one-trick drive, and the trick is real: 8TB in a 102-gram package almost nobody else offered. But it's a 460 MB/s drive in a 1,000+ MB/s world — writes fall toward 195 MB/s off cache, random performance is weak, and at 2TB/4TB Samsung's own T9 is often a few dollars away. The 8TB makes sense for archives and backups. Check the price live on Amazon.
— THE VERDICT · JUDGEANY EDITORSWhat the T5 EVO is
Launched in November 2023, the Samsung Portable SSD T5 EVO is the capacity play in Samsung's portable lineup: a USB 3.2 Gen 1 (5Gbps) drive rated at up to 460 MB/s sequential read and write, sold in 2TB, 4TB, and 8TB. The 8TB ceiling was the headline — very few pocketable USB drives offered that much space at launch. The US 8TB model is MU-PH8T0S/AM (ASIN B0CMDGGJTZ). The shell is a metal unibody wrapped in a rubber sleeve, with an integrated carry ring that TechRadar called instantly likable. The box holds a single USB-C to C cable, about 46cm long — no C-to-A cable or adapter. One note on method: we don't run a lab. Everything below comes from published reviews and listings, and the scores are editorial judgments based on them.
The specs that matter
Interface is USB 3.2 Gen 1 at 5Gbps, with UASP support and backward compatibility down to USB 2.0. Samsung rates it at 460 MB/s read and write; independent testers measured 422–466 MB/s, so the rating holds. The drive measures 40 x 95 x 17 mm and weighs 102 grams. Drop resistance is rated up to 2m in Samsung's internal free-fall test onto a metal plate — drop damage isn't covered by the warranty, and there's no IP dust/water rating. Security is AES 256-bit hardware encryption with Samsung Magician for health checks, benchmarks, and firmware updates. It ships preformatted in exFAT for Windows, macOS, and Android, and works with PCs, laptops, tablets, game consoles, smart TVs, and cameras. A detail from Amazon's own comparison table: unlike the T9, T7 Shield, and T7, the T5 EVO is not listed as supporting iPhone ProRes 4K/60fps recording. Warranty is three years, shorter than the T9's five.
What published tests found
TechRadar reviewed the 8TB model and scored it 60/100. Its lab numbers: 422/405 MB/s in AJA, 466/466 in CrystalDiskMark, 445/445 in ATTO, 429/429 in AS SSD, and 366/366 in its "real life" test. The verdict was blunt — the drive won't enter TechRadar's best portable SSD buying guide "without a significant drop in price." The review also flagged an Anandtech teardown showing the T5 EVO is essentially a repackaged 870 QVO, i.e. QLC NAND, which explains the endurance profile. TechAdvisor's Jon L. Jacobi (80/100) put the 5Gbps ceiling at roughly 550 MB/s and found sequential throughput "on par for a 5Gbps USB SSD" — but the single-queue random write drop-off surprised him, since that doesn't depend much on bus speed. His 450GB write held roughly 400 MB/s; after pushing another 1.5TB through it, writes fell to about 195 MB/s and stayed there. Tom's Hardware (60/100) summed it up as roomier, faster, and tougher than portable hard drives, yet slow for an SSD and badly in need of a price cut. DigitalCitizen's real-world test moved a 61.5GB game folder at about 370 MB/s write and 408 MB/s read, with the drive sitting near 37°C and no sign of throttling.
The capacity argument — and its limit
Here is the counterpoint, and it's genuine: in late 2023 almost nobody sold an 8TB pocket SSD. HotHardware (90/100) argued that building your own 8TB external from an M.2 drive plus a USB4 or Thunderbolt enclosure would cost more than the T5 EVO, making it the practical route to maximum capacity in minimum volume. But the same review printed the number that kills the smaller sizes: Samsung's own T9 4TB at $319 against the T5 EVO 4TB at $310 in HotHardware's April 2024 review — "that would be $9 well spent" for roughly four times the speed. TechRadar said it plainly: poor value at 2TB and 4TB, where the T9, SanDisk, and others deliver far better value. The honest read is tiered. The 8TB has a real capacity story. The 2TB and 4TB mostly don't.
What owners say
Owner sentiment is steady rather than excited. The 8TB listings hold around 4.4 stars across roughly 640 reviews (UK/EU listings tracked by disks.co.uk), with buyers praising the capacity per gram and plug-and-play behavior across Windows, Mac, and Android. Complaints track the reviews: slower than expected for the money, the rubber sleeve picks up dust and lint (noted by both PCWorld and NASCompares), and at launch the smaller capacities were hard to justify next to faster drives. Deals have softened the price complaint — Slickdeals posted the 8TB at $427.49 for Prime members in October 2024 against a $649.99 MSRP — so check it live on Amazon.
Who should buy it
Buy the 8TB if you need one pocketable vault — photo and video archives, game libraries, full-system backups — and 460 MB/s is enough for how you work. It's a poor choice for editing video directly off the drive: the weak single-queue random performance and ~195 MB/s off-cache writes will get in your way. The 2TB and 4TB make sense only at steep discounts — check the T9's price first, because it's often within a few dollars and roughly four times faster. And if you need water resistance, look at the T7 Shield — the T5 EVO has no IP rating. Whatever you do, check it live on Amazon.