Dell 1.2TB SAS 6 Gb/s 2.5 inches 10000RPM HDD

Storage Capacity: 1.2 TB (1200 GB) enterprise HDD
Form Factor: 2.5-inch Small Form Factor (SFF)
Drive Type: Internal SAS Hard Disk Drive
Hot-Swap Support: Yes (with tray/caddy)
Interface: SAS (Serial Attached SCSI) — 6 Gb/s
SAS Version: SAS-2 standard (~6 Gb/s)
Rotational Speed: 10,000 RPM
Buffer (Cache): 64 MB
External Transfer Rate: 6 Gb/s (~750 MB/s)
Typical Seek Time: 4.5 ms