Universal Serial Bus

USB 1.x/2.0 Standard A/B plug (male)

USB 1.x/2.0 Mini A/B plug (male)

USB 2.0 Micro A/B plug (male)

Pin		Name	Description	Color
Stand.	Mini/Micro	Name	Description	Color
1	1	VCC	+5 V	Red
2	2	D-	Data -	White
3	3	D+	Data +	Green
-	4	ID	OTG Identification: • host: connected to ground • slave: not connected	Not connected
4	5	GND	Ground	Black
Shell		Shield	Metal shell	Drain Wire

USB 3.x

USB 3.x Standard-A Receptable (female) and plug (male)

USB 3.x Powered-B Receptable (female) and plug (male)

USB 3.x Micro-B plug (male)

Pin			Signal	Description	Color (type A)
Type A	Type B (*)	Micro B	Signal	Description	Color (type A)
1	1	1	VBUS	Power	Red
2	2	2	Data -	USB 2.0 data	White
3	3	3	Data +	USB 2.0 data	Green
4	4	5	GND	Ground for power	Black
5	8	9	SSRX-	SuperSpeed receiver	Blue
6	9	10	SSRX+	SuperSpeed receiver	Yellow
7	7	8	GND DRAIN	Ground for signal
8	5	6	SSTX-	SuperSpeed transmitter	Purple
9	6	7	SSTX+	SuperSpeed transmitter	Orange
10	10	-	DPWR (*) PD DETECT 1	Power provided by device /PD detect
11	11	-	DGND (*) PD DETECT 2	Ground for DPWR /PD detect
-	-	4	ID	OTG Identification
Shell			Shield	Connector metal shell

Note: Tx and Rx are defined from host perspective for Type-A, and from device perspective for Type-B and Micro-B.

(*) Powered-B USB connector allows USB accessories to draw power from peripheral devices. It is deprecated in USB 3.1 and replaced by Power Delivery (PD) specs.
Pins 10-11 are used in PD receptacle to detect a PD plug.
Standard connectors don't have the pins 10-11.

USB 3.1 Type-C

USB Type-C Receptacle Interface (Front View)

A1	A2	A3	A4	A5	A6	A7	A8	A9	A10	A11	A12
GND	TX1+	TX1-	Vbus	CC1	D+	D-	SBU1	Vbus	RX2-	RX2+	GND

GND	RX1+	RX1-	Vbus	SBU2	D-	D+	CC2	Vbus	TX2-	TX2+	GND
B12	B11	B10	B9	B8	B7	B6	B5	B4	B3	B2	B1

USB Type-C Plug Interface (Front View)

A12	A11	A10	A9	A8	A7	A6	A5	A4	A3	A2	GND
GND	RX2+	RX2-	Vbus	SBU1	D-	D+	CC	Vbus	TX1-	TX1+	GND

GND	TX2+	TX2-	Vbus	Vconn			SBU2	Vbus	RX1-	RX1+	GND
B1	B2	B3	B4	B5	B6	B7	B8	B9	B10	B11	B12

The pin-out is independent of plug orientation.
Connector includes both USB 2.0 (D+ and D−) and USB 3.1 (TX and RX pairs) data buses, USB power (VBUS) and ground (GND), Configuration Channel signals (CC1 and CC2), and two Sideband Use (SBU) signal pins.
Not all signals are required in all platforms or devices.

USB Specifications

- USB Power Specification
- USB Power Delivery Specification
- USB Speed Specification