HP 935487-001 is a 128 GB solid-state drive for storage in a compatible computer. It is listed as an HP SPS-SSD, with an M.2 form factor and SATA 3 interface. The compact module provides a place to store an operating system, applications and personal files.
The drive uses TLC memory and has a capacity of 128 GB. EMPR lists this exact part for the HP EliteBook 820 G4 laptop, model 3ZJ27US, making it a documented service-part option for that system. Its M.2 design and SATA interface define the connection type; they do not describe an NVMe drive.
This part is suited to storage replacement or service where the computer supports the listed M.2 SATA configuration. The listing identifies the SSD itself; it does not specify additional accessories or package contents.