Western Digital 20-pack 12TB SAS 7200 RPM 256MB 3.5 inch 26.1MM Ultra 512E SED HE12

20-pack 1TB UltraStar A7K2000 SATA 7200RPM 32MB 3.5 inch 25.4MM

Western Digital Part# 0F24807-20PK

Hard Drives - Internal – Hard Drive - 32 MB Buffer - Ultrastar A7K2000 - SATA - SATA/600 - 7200 Spindle Speed (rpm) - Internal - 3.5" Form Factor - Server - Storage System - 1 TB Storage Capacity - 1" Height - 4" Width - 5.8" ...

20-pack 4000GB Ultra 512N SATA 7200RPM 256MB 3.5 inch 26.1MM SE 7K6

Western Digital Part# 0B35950-20PK

Hard Drives - New Additions – Hard Drive - 128 MB Buffer - No Wireless LAN - Ultrastar DC HC310 - SATA - SATA/600 - 7200 Spindle Speed (rpm) - Restriction of Hazardous Substances (RoHS) - Internal - 3.5" Form Factor - Server - ...