System Front Panel; System Rear Panel - ASROCK 1U4LW Series User Manual

2.3 System Front Panel

1
No. Description
1 Control Panel Buttons and LEDs
2 2 x USB 3.0 Ports
3 4 x 3.5" Hot-Swap HDD Trays

2.4 System Rear Panel

No. Description
1 Power Supply Unit
2 Rear Vent
3 I/O Shield (depends on the specification of the server board)
4 PCI Express Slot (for the riser card)
6
2
1 2
3
3 4