The Lexar NM790 4TB is an M.2 2280 internal solid state drive using a PCIe 4.0 x4 interface and the NVMe 2.0 protocol. It delivers sequential read speeds of up to 7,400MB/s and sequential write speeds of up to 6,500MB/s, with random performance of up to 900K IOPS read and 900K IOPS write.
The drive is DRAM-less and uses Host Memory Buffer (HMB) 3.0 together with a dynamic SLC cache to keep performance consistent. It is single-sided and just 2.45mm thick, so it suits desktop PCs, laptops and the PlayStation 5 (a heatsink is recommended for PS5 use).
Endurance is rated at 3000 TB written (TBW) with an MTBF of 1,500,000 hours, and the drive is covered by Lexar's 5-year limited warranty.
Manufacturer part number: LNM790X004T-RNNNG.
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