Samsung 990 PRO 4TB
Samsung's flagship PCIe 4.0 SSD, now available up to 4TB.

Observed price range$270 – $330
Launch date2023-01-01
Full Specification Sheet
| Interface | PCIe 4.0 x4 NVMe |
|---|---|
| Capacity | 4 TB |
| Sequential Read | up to 7,450 MB/s |
| Sequential Write | up to 6,900 MB/s |
| Form Factor | M.2 2280 |
The Samsung 990 PRO is Samsung's flagship PCIe 4.0 NVMe drive, and the 4TB capacity gives it enough headroom for a full modern game library alongside creative work files without needing a second drive. Sequential speeds reach 7,450 MB/s read and 6,900 MB/s write, saturating what a PCIe 4.0 x4 link can offer.
Built on Samsung's own controller and V-NAND, it stays consistent under sustained transfers better than many competing drives, and Samsung backs it with Magician software for health monitoring and firmware updates.
For anyone not yet on a PCIe 5.0 platform, the 990 PRO remains one of the most reliable, well-tested high-capacity NVMe drives available.