ASROCK IBOX-WHISKEY LAKE User Manual page 34

iBOX-Whiskey Lake/Ryzen
4.3 Expansion Slots (M.2 Slots)
There are 2 M.2 slots on this motherboard.
M.2 for SSD: Key M (M2_1) (2242/2260/2280 by BRACKET) supports PCIe x4 and
SATA3 for SSD.
M.2 for Wi-Fi: Key E (M2_2) (2230) supports PCIe x1 and USB 2.0 for Wireless.
M.2 Key-M Socket (M2_1) M.2 Key-E Socket (M2_2)
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