HP 904149-001 SSD 256G M.2 PCIe NVMe - Z1 G3 is a solid-state drive for adding or replacing storage in a compatible system. Its listing identifies it as an HP SPS drive for the Z1 G3.
The drive has 256G capacity and an M.2 form factor, with a PCIe NVMe interface. These details describe the drive’s storage capacity, physical format and connection type.
This is a specific HP drive part, identified by 904149-001; compatibility beyond the named Z1 G3 designation is not specified.