Asus Pro A520M-C II Manual page 11

6. M.2 slot (Key M)
The M.2 slot allows you to install an M.2 device such as an M.2 SSD module.
The M.2 slot supports a PCIe 3.0 x4 mode and SATA mode M Key design and type
2242/2260/2280 storage device.
7. SATA 6Gb/s ports
The SATA 6Gb/s ports allow you to connect SATA devices such as optical disc drives and
hard disk drives via SATA cables.
8. USB 3.2 Gen 1 header
The USB 3.2 Gen 1 header allows you to connect a USB 3.2
Gen 1 module for additional USB 3.2 Gen 1 ports. The USB 3.2
Gen 1 header provides data transfer speed of up to 5 Gb/s.
The USB 3.2 Gen 1 module is purchased separately.
9. USB 2.0 heades
The USB 2.0 headers allow you to connect USB modules for additional USB 2.0
ports. The USB 2.0 headers provide data transfer speeds of up to 480 Mb/s.
DO NOT connect a 1394 cable to the USB connectors. Doing so will
damage the motherboard!
The USB 2.0 modules are purchased separately.
10. Chassis intrusion header
This header is for a chassis-mounted intrusion detection sensor or switch.
Connect one end of the chassis intrusion sensor or switch cable to this
header. The chassis intrusion sensor or switch sends a high-level signal to
this header when a chassis component is removed or replaced. The signal
is then generated as a chassis intrusion event.
ASUS Pro A520M-C II
PIN 1
USB3+5V
USB3+5V IntA_P1_SSRX-
IntA_P2_SSRX- IntA_P1_SSRX+
IntA_P2_SSRX+ GND
GND IntA_P1_SSTX-
IntA_P2_SSTX- IntA_P1_SSTX+
IntA_P2_SSTX+ GND
GND IntA_P1_D-
IntA_P2_D- IntA_P1_D+
IntA_P2_D+ GND
PIN 1
CHASSIS
PIN 1
1-3