Asus PRIME X370-PRO User Manual page 31

11. M.2 socket (M.2(Socket 3))
These sockets allow you to install a M.2 SSD module.
PRIME X370-PRO
PRIME X370-PRO M.2(SOCKET3)
• M.2 socket supports PCIe 3.0 x4 and SATA mode M Key design and type 2242 / 2260
/ 2280 / 22110 PCIe and SATA storage devices.
• Due to CPU limitation, M.2 working at @PCIe 3.0 x4 or x2 varies by processors.
The M.2 SSD module is purchased separately.
12. Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
PRIME X370-PRO
PRIME X370-PRO Serial port (COM) connector
The COM module is purchased separately.
ASUS PRIME X370-PRO
M.2(SOCKET3)
22110 2280 2260 2242
COM
PIN 1
1-17