1
Western Digital Black SN850X
1TB, 2TB, 4TB, 8TB
Best 4TB PCIe 4.0 Western Digital SSDs
4TBPCIe 4.0Western Digital
There are 4 4TB PCIe 4.0 Western Digital SSDs in our database (4 with a direct Amazon product link). The fastest is the Western Digital Black SN850X at 7300 MB/s read. Sequential reads across the group span 5500–7300 MB/s.
Why this configuration
A 4TB PCIe 4.0 Western Digital SSD is a mainstream Gen4 pick. Gen4 is the current default NVMe tier: about 7,000 MB/s, widely supported, and priced for volume. Western Digital specifically tends to be chosen here for its firmware track record and warranty support.
4TB starts to replace juggling several smaller drives.
Usually chosen for: most modern desktop and laptop builds.
Good fit: large libraries and archives on a single drive.
Ranked list
Ranked by tier, then link type, then sequential read. Drives we hold a product link for show a price button; the rest open an Amazon search on the manufacturer part number. Stock and prices are not shown here — they change too often.
2
Western Digital Black SN7100
500GB, 1TB, 2TB, 4TB
3
Western Digital Blue SN5100
500GB, 1TB, 2TB, 4TB
4
Western Digital Blue SN5000
500GB, 1TB, 2TB, 4TB
The parts, explained
4TB handles big Steam libraries, video projects and archives.
PCIe 4.0 x4 delivers roughly 7,000 MB/s, the current price-to-performance sweet spot for most builds.
Staying with Western Digital means consistent firmware, tooling and warranty handling across the range.
Common questions
How do the links to Amazon work here?
4 of the 4 drives listed have a direct product link; for the rest we link an Amazon search on the manufacturer part number, which lands on the right listing. We deliberately don't display stock or prices on this page — check both on Amazon, they change constantly.