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

20-pack 18TB 3.5 inch 26.1MM 512MB 7.2K RPM SATA Ultra SE NP3 DC HC550

Western Digital Part# 0F38459-20PK

Hard Drives - Internal – Hard Drive - 512 MB Buffer - No Wireless LAN - Ultrastar DC HC550 - SATA - 7200 Spindle Speed (rpm) - Internal - 3.5" Form Factor - 18 TB Storage Capacity - 512e Disk Format - Thailand - DC HC550 - ...

20-pack 8TB UltraStar HE8 SAS 7200 RPM128MB 3.5 inch 25.4MM Ultra 512E

Western Digital Part# 0F23657-20PK

Hard Drives - Internal – Hard Drive - 128 MB Buffer - Ultrastar He8 - SAS - 12Gb/s SAS Drive Interface Standard - 7200 Spindle Speed (rpm) - Internal - 3.5" Form Factor - 8 TB Storage Capacity - 1" Height - 4" Width - 5.8" ...

20-pack 8TB UltraStar HE8 SATA 7200RPM 128MB 3.5 inch 25.4MM 512N BDE

Western Digital Part# 0F23666-20PK

Hard Drives - Internal – Hard Drive - 128 MB Buffer - No Wireless LAN - Ultrastar He8 - SATA - SATA/600 - 7200 Spindle Speed (rpm) - Internal - 3.5" Form Factor - Storage System - 8 TB Storage Capacity - 1" Height - 4" Width ...