Hard Disk 3,5 2TB Hitachi HUS722T2TALA604 7200 128M SATA3

CAPACITY: One MB is equal to one million bytes, one GB is equal to one billion bytes and one TB equals 1,000GB (one trillion bytes) when referring to hard drive capacity. Accessible capacity will vary from the stated capacity due to formatting and partitioning of the hard drive, the computer’s operating system, and other factors. 
MTBF/AFR: Specifications are based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions for this drive model. MTBF and AFR ratings do not predict an individual drive’s reliability and do not constitute a warranty.
BUFFER: Portion of buffer capacity used for drive firmware. 
TRANSFER RATE: MiB/s is 1048576 (2²⁰) Bytes/sec, MB/s is 1000000 (10⁶) Bytes/sec.