Lenovo V520 User Manual And Hardware Maintenance Manual page 7

Overview
Front USB 2.0 connector 2
14
(Card reader connector)
Front USB 2.0 connector 1
15
Parallel connector
16
Serial (COM2) connector
17
PCH
18
PCI Express x1 card slot
19
M.2 Wi-Fi card slot
20
PCI Express x16 graphics card slot
21
System fan connector
22
Coin-cell battery
23
Microprocessor socket
24
7