The Lexar NM800 Pro (w/ Heatsink) is a solid-state drive in the M.2 2280 form factor, launched on August 24th, 2022. It is available in capacities ranging from 512 GB to 2 TB. This page reports specifications for the 512 GB variant. With the rest of the system, the Lexar NM800 Pro (w/ Heatsink) interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the IG5236 (Rainier) from InnoGrit, a DRAM cache chip is available. Lexar has installed 176-layer TLC NAND flash on the NM800 Pro (w/ Heatsink), the flash chips are made by Micron. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are soaked up more quickly. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The NM800 Pro (w/ Heatsink) is rated for sequential read speeds of up to 7,450 MB/s and 3,500 MB/s write; random IOPS reach up to 500K for reads and 900K for writes.
The SSD's price at launch is unknown. The warranty length is set to five years, which is an excellent warranty period. Lexar guarantees an endurance rating of 500 TBW, a good value.