User's Manual

17
Chapter 2: Hardware Setup
Install PCle Add-in Cards
RS4021xs+ provides two PCIe slots for optional add-in card expansion, allowing network interface cards to be
installed.
To install network interface cards
1
Shut down your RS4021xs+. Disconnect all cables connected to your RS4021xs+ to prevent any possible
damages.
2
Open your RS4021xs+ by following step 2 of the "
To install the RAM module
" section.
3
Install the network interface card:
a
Remove the screw that secures the expansion slot’s cover.
b
Lift the expansion slot’s cover.
a
b
c
Align the card’s connector with the expansion slot, and insert the card into the slot.
Note:
Conrm that the connector is fully inserted. Otherwise, the network interface card might not be able to
function properly.
d
Put back and fasten the screw that you removed in step 3-a to secure the newly inserted card in place.
d
c
4
Repeat step 3 to install another network interface card for your RS4021xs+.
5
Replace the rear top cover by following step 4 of the "
To install the RAM module
" section.