
Corsair EX400U SURVIVOR 4TB USB4 External SSD – Up to 4000 MB/s, IP55 Rugged Drive, Plug & Play for PC, Mac & iPad – Black is priced at £550.99 — stable over the last 30 days.
Price last checked: 18 Apr 2026, 16:53
The Corsair EX400U SURVIVOR is a 4TB external SSD with a 2.5-inch form factor, offering up to 4000 MB/s read speeds and 3600 MB/s write speeds via USB4. Its rugged, environmentally sealed housing provides IP55 protection, making it suitable for daily use in various environments. This drive is ideal for professionals and creatives who need to transfer large files, such as video editors and gamers, and is compatible with PC, Mac, and iPad devices.

£135.42/TB
Updated 2h ago

£130.87/TB
Updated 2h ago

£99.71/TB
Updated 2h ago

£194.99/TB
Updated 2h ago
Explains how to compare SSD endurance (TBW/DWPD), warranty terms, controller/DRAM design, and real-world performance metrics like sustained writes after SLC cache, 4K QD1 latency, and thermals.
NVMe vs SATA, TLC vs QLC, DRAM cache — cut through the jargon and pick the best SSD for your PC build or upgrade.