You are buying one HP DH-16AAL-DT2 Used, working DVD/RW Sata Disc Drive w/SATA Data & Power Cable. Please see photo's.
Specifications:
DC: 5 Volts, 1.5 Amps
DC: 12 Volts, 1.5 Amps
DVD/CD Rewritable Drive
LOC: 88E