The MSI Spatium M482 is a solid-state drive in the M.2 2280 form factor, launched in December 2023. 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 MSI Spatium M482 interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the PS5027-E27T from Phison, a DRAM cache is not available. MSI has installed 162-layer TLC NAND flash on the Spatium M482, the flash chips are made by Kioxia. 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 Spatium M482 is rated for sequential read speeds of up to 7,300 MB/s and 6,400 MB/s write; random IOPS reach up to 1000K for reads and 950K for writes.
At its launch, the SSD was priced at 125 USD. The warranty length is set to five years, which is an excellent warranty period. MSI guarantees an endurance rating of 1200 TBW, a typical value for consumer SSDs.