The Silicon Power XS70 is a solid-state drive in the M.2 2280 form factor, launched on January 16th, 2022. It is only available in the 2 TB capacity listed on this page. With the rest of the system, the Silicon Power XS70 interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the IG5236 (Rainier) from InnoGrit, a DRAM cache chip is available. Silicon Power has installed 128-layer TLC NAND flash on the XS70, the flash chips are made by YMTC. 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 XS70 is rated for sequential read speeds of up to 7,300 MB/s and 6,800 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. Silicon Power guarantees an endurance rating of 1400 TBW, a typical value for consumer SSDs.