Samsung Spinpoint T HD501LJ 500GB Serial ATA II internal hard drive

HD501LJ SATA II 500 GB Serial ATA
SATA is a computer bus technology primarily designed for transfer of data to and from HDDs and optical drives.
It uses only 4 signal-lines, allowing for much more compact cables compared to PATA.

enable/disable staggered spin-up
Staggered spin-up of HDD is not confined solely to mobile drives, and is a feature of many multi-drive systems using RAID.
This feature allows not only greater reliability, but also the system to avoid power surges if all of the HDDs spin up simultaneously during system power up (in a multi-drive environment).

device initiated power management
When there are no commands on the HDD, this feature automatically switches on power saving mode and cuts down on electricity through the SATA cable.
It can effectively reduce power consumption.

ATA S.M.A.R.T compliant
ATA S.M.A.R.T compliant is designed hard disk drive to check the reliability itself and directly transfer to host.

ATA streaming feature(optional)
ATA streaming feature supports command set for AV data that stream error logging to reduce time delays for system error processing and handle stream errors to enable full error recovery.