The Samsung 990 SSD 1 TB is a high-performance NVMe SSD in a compact M.2 2280 form factor, designed for upgrading desktop and laptop computers. Using the PCIe 4.0 x4 interface and the NVMe 2.0 protocol, it delivers high data transfer speeds, fast booting of the operating system, applications, and large files.
The drive achieves sequential read speeds of up to 7,150 MB/s and write speeds of up to 6,450 MB/s, and for random access, up to 700,000 IOPS for read operations and 1,100,000 IOPS for write operations. It uses Samsung V-NAND memory, Samsung’s proprietary controller, and HMB (Host Memory Buffer) technology. Samsung
It supports TRIM, S.M.A.R.T., and automatic memory management, as well as advanced 256-bit AES encryption. The Samsung Magician software is available for monitoring the drive’s status, firmware updates, and SSD optimization.

Specifications:
Capacity: 1 TB (1,000 GB)
Drive type: SSD
Form factor: M.2 2280
Interface: PCIe 4.0 x4
Protocol: NVMe 2.0
Memory: Samsung V-NAND
Controller: Samsung proprietary controller
Cache: HMB (Host Memory Buffer)
Sequential read: up to 7,150 MB/s
Sequential write: up to 6,450 MB/s
Random read: up to 700,000 IOPS
Random write: up to 1,100,000 IOPS (Samsung)
TRIM support: yes
S.M.A.R.T.: Yes
Garbage Collection: Yes
Encryption: AES 256-bit, TCG/Opal V2.0, IEEE1667
Device Sleep: Yes
MTBF: 1.5 million hours
Endurance: 400 TBW
Operating Temperature: 0–70 °C
Shock resistance: up to 1,500 G / 0.5 ms
Average read power consumption: 4.0 W
Average power consumption during write operations: 3.7 W
Idle power consumption: approximately 55 mW
Device Sleep: approximately 3 mW
Dimensions: 80.15 × 22.15 × 2.38 mm
Weight: up to 9 g