Fastest Portable SSD Showdown 2025: Samsung T9 vs SanDisk Extreme PRO USB4 vs Crucial X10 Pro
The three drives in the showdown are Samsung Portable SSD T9, SanDisk Extreme PRO USB4, and Crucial X10 Pro. Samsung T9 uses USB 3.2 Gen 2×2 (20 Gbps) with up to 2000 MB/s read and 1950 MB/s write on 1TB/2TB, and 2000 MB/s read/write on the 4TB model. SanDisk Extreme PRO USB4 uses USB4 (40 Gbps) with up to 3800 MB/s read and 3700 MB/s write, available in 2TB and 4TB capacities (no 1TB). Crucial X10 Pro uses USB 3.2 Gen 2×2 (20 Gbps) with up to 2100 MB/s read and 2000 MB/s write, available in 1TB, 2TB, and 4TB.