// USB Alt Modes

USB-C HDMI 2.0 Alt Mode

USB-C HDMI 2.0 Alt Mode carries HDMI 2.0 video over USB-C using an active adapter chip in the cable. Supports 4K/60Hz, HDR, and 32-channel audio without a separate HDMI cable.

// Specifications

Standard

HDMI Alt Mode over USB-C

HDMI Version

HDMI 2.0b

Max Resolution

4K at 60Hz

Audio

Up to 32 channels

Adapter

Active IC required in cable or adapter

Note

Not a passive cable, active conversion needed

// Pin Reference Table

Pin	Name	Function	Type
A2	TX1+	HDMI TMDS data 0+	BUS
A3	TX1-	HDMI TMDS data 0-	BUS
A10	RX2-	HDMI TMDS data 1-	BUS
A11	RX2+	HDMI TMDS data 1+	BUS
B2	TX2+	HDMI TMDS data 2+	BUS
B3	TX2-	HDMI TMDS data 2-	BUS
B10	RX1-	HDMI TMDS clock-	BUS
B11	RX1+	HDMI TMDS clock+	BUS
A8	SBU1	HDMI CEC signal	BUS
B8	SBU2	HDMI hot plug detect	I/O
A4	VBUS	Power	PWR