The HP FX900 Pro is a solid-state drive in the M.2 2280 form factor, launched on February 9th, 2023. It is available in capacities ranging from 512 GB to 4 TB. This page reports specifications for the 4 TB variant. With the rest of the system, the HP FX900 Pro interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the IG5236 (Rainier) from InnoGrit, a DRAM cache chip is available. HP has installed 176-layer TLC NAND flash on the FX900 Pro, the flash chips are made by Micron. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are handled more quickly. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The FX900 Pro is rated for sequential read speeds of up to 7,400 MB/s and 6,700 MB/s write; random IO reaches 540K IOPS for read and 938K for writes.
At its launch, the SSD was priced at 250 USD. The warranty length is set to five years, which is an excellent warranty period. HP guarantees an endurance rating of 2400 TBW, a typical value for consumer SSDs.