Overview
8
16
SATA 3.0 connector
17
M.2 Wi-Fi card slot
18
M.2 storage drive slot
19
Illuminated red dot connector
20
Thermal sensor connector
21
Front USB 2.0 connector
22
Front USB 2.0 connector
23
Serial (COM2) connector
24
PCI Express card slot (physical
link width x16; negotiable link
width x4, x1)
25
PCI Express x1 card slot
26
PCI Express x16 graphics card
slot
27
Cover presence switch
connector (Intrusion switch
connector)
28
System fan connector
29
Coin-cell battery
30
Microprocessor socket
31
PS/2 keyboard and mouse
connector