T9

The T9 sits firmly in the fast lane. Over a USB 3.2 Gen 2×2 (20 Gbps) connection it’s rated for up to 2,000 MB/s read and 1,950 MB/s write — roughly double the everyday Gen 2 drives — putting it among the quickest USB (non-Thunderbolt) drives you can buy. For shifting large media files, offloading high-resolution footage, or running a working library straight off the drive, the extra headroom is genuinely useful.

It holds up under load, too. Samsung’s Dynamic Thermal Guard manages heat to keep sustained transfers from throttling early, and the V-NAND TLC gives it consistent write behavior on longer jobs. It lands at 8.0 rather than higher because the Crucial X10 Pro edges it slightly on sustained writes at the top of this tier, and the pricier USB4/Thunderbolt drives are faster still — but those need a Thunderbolt host and cost more.

Bottom line on performance: Among the fastest USB drives made — ~2,000 MB/s reads with composed sustained writes thanks to Dynamic Thermal Guard. Only the X10 Pro and the Thunderbolt drives edge ahead.

This is the T9’s quiet superpower and the highest reliability mark in the high-speed tier. Like Crucial, Samsung makes its own memory — the T9 runs on Samsung V-NAND TLC driven by Samsung’s in-house controller, the kind of vertical integration that has earned its portable SSDs a strong real-world track record. TLC delivers better write endurance than budget QLC, and Dynamic Thermal Guard protects the flash from heat stress on heavy workloads.

Backing the hardware is a five-year limited warranty, matching the best coverage in the class. There’s no specific reliability concern here — this is exactly the kind of drive you can trust with working files. The universal caveat still applies: keep a second copy of anything you can’t afford to lose, no matter how solid the drive.

Bottom line on reliability: Samsung’s in-house V-NAND TLC, a mature controller, thermal protection, and a five-year warranty make this the most dependable pick in the high-speed tier.

This is the T9’s clearest weakness relative to the rest of the high-speed tier. It carries no IP rating at all — no certified dust or water resistance — and instead leans on a 3 m (9.8 ft) drop rating for shock protection. The compact aluminum-core casing with a grippy textured shell feels solid in hand and survives the bumps of everyday carry, but it isn’t sealed against the elements.

That puts it behind its tier-mates on weatherproofing: the Crucial X10 Pro adds IP55 and the rugged Samsung T7 Shield reaches IP65, both shrugging off dust and splashes the T9 can’t. The drop rating is reassuring, but if your drive travels into dusty, wet, or jobsite conditions, the lack of an IP seal is why durability lands at 6.5.

Bottom line on durability: A solid 3 m drop rating, but no IP rating means no dust or water resistance — a real gap next to the IP55 X10 Pro and IP65 T7 Shield.

Like every drive in this tier, the T9 needs a USB 3.2 Gen 2×2 (20 Gbps) port to reach its full ~2,000 MB/s. The catch is structural: Intel never built Gen 2×2 into its chipsets, so many laptops — especially Intel-based ones — lack a native 20 Gbps port. On a standard 10 Gbps port the T9 still works perfectly, just at roughly half the speed, the same as an everyday drive.

Samsung does soften the compatibility story better than some rivals: the box includes both a USB-C–to–C cable and a USB-A–to–C cable, so it connects to older USB-A machines out of the box (at reduced speed). It’s broadly compatible across Windows, macOS, Android, and consoles. We still hold Connectivity to 7.0 because realizing the headline speed depends on a Gen 2×2 port many machines don’t have — confirm yours before buying, or you’ll pay for speed you can’t use.

Bottom line on connectivity: Full speed needs a 20 Gbps (Gen 2×2) port many laptops lack; on 10 Gbps it halves. Both C-to-C and A-to-C cables are included — a nice touch.

The T9 is a good value held back from a great one by the company it keeps. It typically commands a premium over the Crucial X10 Pro, our Best Overall pick, which matches it on speed, adds IP55 ruggedness, and usually costs less. You’re paying for Samsung’s brand, its in-house memory, hardware encryption, and the bundled USB-A cable — real benefits, but ones that don’t fully close the price gap.

Offered in 1, 2, and 4 TB (larger capacities give the best price-per-terabyte), it’s a sound buy if you specifically want Samsung’s reliability and built-in security. Judged within its performance class, it’s worth its asking price — just not the value leader, which is why this lands at 7.0. (We don’t list prices here because they change constantly; check the current Amazon price before buying.)

Bottom line on value: A fair price for Samsung reliability and hardware encryption, but the equally fast, IP55-rated X10 Pro usually costs less — good value, not the class leader.

This is where the T9 clearly outshines the Crucial X10 Pro. It includes AES 256-bit hardware encryption with a self-contained password lock — a feature of the drive itself, not your operating system — so your data stays protected across Windows, macOS, and Android without relying on BitLocker or FileVault. For anyone carrying sensitive work files, that built-in, cross-platform security is a meaningful advantage.

It’s paired with the polished Samsung Magician suite for firmware updates, drive-health monitoring, and encryption setup — the most complete management software in the class. Even though this category carries only 5% weight, the T9 earns one of the highest software marks in the lineup for offering genuine, drive-level security that most rivals leave to the OS.

Bottom line on software & security: Built-in AES 256-bit hardware encryption plus the Samsung Magician suite — the strongest software-and-security story in the high-speed tier.