The Lexar NM800 is a solid-state drive in the M.2 2280 form factor, launched on September 15th, 2021. It is available in capacities ranging from 512 GB to 1 TB. This page reports specifications for the 512 GB variant. With the rest of the system, the Lexar NM800 interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the IG5236 (Rainier) from InnoGrit. Lexar has installed 64-layer TLC NAND flash on the NM800, the flash chips are made by YTMC. Please note that this SSD is sold in multiple variants with different NAND flash or controller, which could affect performance, the "Notes" section at the end of this page has more info. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are absorbed more quickly. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The NM800 is rated for sequential read speeds of up to 7,000 MB/s and 3,000 MB/s write; random IO reaches 200K IOPS for read and 550K for writes.
At its launch, the SSD was priced at 88 USD. The warranty length is set to five years, which is an excellent warranty period. Lexar guarantees an endurance rating of 1500 TBW, a high value.