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52 pen mini-PCIE sheet pcbconnector
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PCI express Mini map (also known as Mini PCI Express, Mini PCIe, and Mini PCI-E) is a replacement for the Mini PCI kind factor based upon PCI Express. The is emerged by the PCI-SIG. The host maker supports both PCI Express and also USB 2.0 connectivity, and each card uses whichever the designer feel most suitable to the task. Most laptop computers constructed after 2005 are based upon PCI Express and can have several Mini card slots.

Top sideBottom side
1WAKE#23.3V
3Reserved****4GND
5Reserved****6

1.5V

7CLKREQ#8VCC**
9GND10I/O**
11REFCLK-12CLK**
13REFCLK+14RST**
15N/C or GND16VPP**
Mechanical key
17Reserved18GND
19Reserved20Reserved***
21GND22PERST#
23PERn024+3.3Vaux
25PERp026GND
27GND28+1.5V
29GND30SMB_CLK
31PETn032SMB_DATA
33PETp034GND
35GND36USB_D-
37Reserved*38USB_D+
39Reserved*40GND
41Reserved*42LED_WWAN#
43Reserved*44LED_WLAN#
45Reserved*46LED_WPAN#
47Reserved*48+1.5V
49Reserved*50GND
51Reserved*52+3.3V

*Reserved for future second PCI Express lane (if needed).Pin 51 has changed to it is in W_DISABLE2#**Reserved for future Subscriber identity Module (SIM) user interface (if needed)***Reserved for future wireless disable signal (if needed)****Reserved for future wireless coexistence control interface (if needed)