The Samsung 990 is an M.2 2280 NVMe SSD designed for the PCIe 4.0 x4 interface. In the 2TB version, it delivers sequential read speeds of up to 7,250 MB/s and write speeds of up to 6,450 MB/s, with random read/write performance reaching up to 850K / 1,200K IOPS. Samsung combines its proprietary V-NAND with an in-house controller; instead of a dedicated DRAM cache, the SSD utilizes the system's Host Memory Buffer (HMB). Management and firmware updates are handled via the Samsung Magician software.
Specifications
- Capacity: 2TB
- Form factor: M.2 2280 (80.15 × 22.15 × 2.38 mm, max. 9.0 g)
- Interface: PCIe 4.0 x4, NVMe 2.0
- Memory: Samsung V-NAND, HMB (no DRAM)
- Sequential read/write: up to 7,250 / 6,450 MB/s
- Random read/write: up to 850K / 1,200K IOPS
- Average power consumption: 4.3 W (read), 3.8 W (write); 55 mW (idle)
- Encryption: AES 256-bit full disk encryption, TCG/Opal V2.0, IEEE1667
- Reliability: MTBF of 1.5 million hours, shock resistance up to 1,500 G
- Operating temperature: 0 to 70 °C
