Dell Precision T3400 (Late 2007) - Manual (Page 200)

200
Adding and Replacing Parts
6 If you are installing a serial ATA drive:
a Connect a power cable to the back of the hard drive and to the power
supply.
b Connect the serial ATA cable to the back of the hard drive and to the
SATA connector on the system board.
7 If you are installing a SAS drive:
a Connect the power cable to the SAS connector.
b Connect the SAS connector to the back of the drive.
c Connect the SAS cable to the SAS controller card.
1 power cable 2 serial ATA cable
3 SATA connector 4 optional third serial ATA/SAS
hard drive
4
1
3
2