Dell poweredge t330 Owner's Manual page 12

Item Indicator, button, or
connector
8 USB connector
9 Optical drive or tape
drives
10 Hard drives
12
Icon Description
This port is USB 2.0-compliant
Enables you to connect USB devices to the system.
This port is USB 3.0-compliant.
Enables you to install an optical drive or tape
drives. For more information about supported
optical drives and tape drives, see
and tape drives
Enables you to install up to eight 3.5-inch (2.5-inch
with adapter) hot swappable hard drives/SSDs.
Optical drives
(optional).