The Lexar Thor Pro is a solid-state drive in the M.2 2280 form factor, launched in 2025. It is available in capacities ranging from 1 TB to 2 TB. This page reports specifications for the 2 TB variant. With the rest of the system, the Lexar Thor Pro interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the IG5236 (Rainier) from InnoGrit, a DRAM cache is not available. Lexar has installed 144-layer QLC NAND flash on the Thor Pro, the flash chips are made by Intel. 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 handled more quickly. The cache is sized at 500 GB. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The Thor Pro is rated for sequential read speeds of up to 7,000 MB/s and 5,500 MB/s write.
The SSD's price at launch is unknown. The warranty length is set to five years, which is an excellent warranty period. The TBW rating for the Lexar Thor Pro 2 TB is unknown, too.