ASROCK Rack 2U4FH-8L User Manual page 40

4.4 PCIE SSD Add-In Card (PE-SSD) (Optional)
The PCIE SSD add-in card is used only when you need to install SSDs on the system.
Top View
No. Description
1 Hot Plug Detection Header (HS_DET_1)
2 SSD Signal Connector (PE_SSD0)
3 SSD Signal Connector (PE_SSD1)
34
1
HS_DET_1
2 3
PE_SSD0
PE_SSD1