The HP FX900 is a solid-state drive in the M.2 2280 form factor, launched in 2022. It is available in capacities ranging from 256 GB to 2 TB. This page reports specifications for the 256 GB variant. With the rest of the system, the HP FX900 interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the IG5220 (RainierQX) from InnoGrit, a DRAM cache is not available. HP has installed 176-layer TLC NAND flash on the FX900, the flash chips are made by Micron. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are processed more quickly. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The FX900 is rated for sequential read speeds of up to 4,600 MB/s and 1,700 MB/s write; random IOPS reach up to 281K for reads and 325K for writes.
The SSD's price at launch is unknown. The warranty length is set to five years, which is an excellent warranty period. HP guarantees an endurance rating of 100 TBW, a relatively low value compared to other SSDs.