HP StorageWorks ESL9000 Ultrium 460 drive upgrade kit. Power requirements: 100-120 V/200-240 V, 50/60 Hz, Power supply type: AC IEC-320 C19 100~120V / 200~240V @ 50-60Hz, 20/16A (5-20P plug for U.S. & Canada), Power consumption (typical): 1200 VA. Mean time between failures (MTBF): 250.000 hours