Hard drive connection pins

[Guest]

Hello,I have a Toshiba HD

HDD2H03, 160gb...The contacts are arranged as follows:

xxxxxxxxxxxxxxx xxxxxxx and 4 pins xxxx
what are the 4 pins for? Are they jumper pins or power supply?

 

[Hawkeye22]

The 4 pins are for a four pin power molex from the PSU. If your power supply has a SATA power connection, use it on the drive, otherwise use a standard four pin molex. DO NOT use both power connetors at the same time as it can damage the hard drive.