PCB Board Connectors 10 pins

M.2 A-Key (WiFi/BT)

M.2 A-Key is a 2230 or 2242 form factor slot for Wi-Fi and Bluetooth combo modules. The A-key notch is at pin 8-9 position. Provides PCIe x2 and USB 2.0 interfaces for wireless connectivity cards.

// connector diagram 10 pins

// loading diagram...

// Specifications

Standard

M.2 specification A-key

Key Position

A-key notch at pins 8-9

Interfaces

PCIe x2 and USB 2.0

Form Factor

2230 or 2242 typical

Use Case

Wi-Fi Bluetooth combo modules

Example

Intel AX200 AX210 Wi-Fi 6E cards

// Pin Reference Table

Pin	Name	Function	Type
1	GND	Ground	GND
2	3.3V	3.3V power	PWR
3	GND	Ground	GND
10	PERST#	PCIe reset	I/O
11	PCIe Lane 0 TX+	PCIe TX positive	BUS
12	PCIe Lane 0 TX-	PCIe TX negative	BUS
13	PCIe Lane 0 RX+	PCIe RX positive	BUS
14	PCIe Lane 0 RX-	PCIe RX negative	BUS
67	USB D+	USB 2.0 data positive	BUS
68	USB D-	USB 2.0 data negative	BUS

M.2 A-Key is a 2230 or 2242 form factor slot for Wi-Fi and Bluetooth combo modules. The A-key notch is at pin 8-9 position. Provides PCIe x2 and USB 2.0 interfaces for wireless connectivity cards.