USB Type-C R2.5 (USB-IF)

USB Type-C 24-Pin Receptacle Pinout & Specification

The USB Type-C receptacle has 24 contacts in two rows of 12, arranged so a plug fits either way up. Select a contact to see its signal, which contacts duplicate it and what it does.

Pin assignment

Pin 1: GND1Pin 2: TX1+2Pin 3: TX1-3Pin 4: VBUS4Pin 5: CC15Pin 6: D+6Pin 7: D-7Pin 8: SBU18Pin 9: VBUS9Pin 10: RX2-10Pin 11: RX2+11Pin 12: GND12Pin 24: GND24Pin 23: RX1+23Pin 22: RX1-22Pin 21: VBUS21Pin 20: SBU220Pin 19: D-19Pin 18: D+18Pin 17: CC217Pin 16: VBUS16Pin 15: TX2-15Pin 14: TX2+14Pin 13: GND13Pin 1: GND1Pin 2: TX1+2Pin 3: TX1-3Pin 4: VBUS4Pin 5: CC15Pin 6: D+6Pin 7: D-7Pin 8: SBU18Pin 9: VBUS9Pin 10: RX2-10Pin 11: RX2+11Pin 12: GND12Pin 24: GND24Pin 23: RX1+23Pin 22: RX1-22Pin 21: VBUS21Pin 20: SBU220Pin 19: D-19Pin 18: D+18Pin 17: CC217Pin 16: VBUS16Pin 15: TX2-15Pin 14: TX2+14Pin 13: GND13
  • Ground
  • USB data
  • Power

Schematic face view, not to scale · numbering per USB Type-C R2.5 (USB-IF)

Pin assignment of USB Type-C Receptacle
PinSignalFunctionStatus
GNDGround returnStandard
TX1+SuperSpeed USB differential TX pair positive (Lane 1)Standard
TX1-SuperSpeed USB differential TX pair negative (Lane 1)Standard
VBUSBus power (5 V default, up to 48 V nominal with USB PD EPR)Standard
CC1Configuration Channel 1: attach detection, plug orientation and USB PD; whichever CC is not wired through the cable sources VCONNStandard
D+USB 2.0 differential pair positive (top)Standard
D-USB 2.0 differential pair negative (top)Standard
SBU1Sideband Use 1: USB4 sideband, Alternate Modes (e.g. DisplayPort AUX) and liquid detection; open or weakly pulled down when unusedStandard
VBUSBus power (5 V default, up to 48 V nominal with USB PD EPR)Standard
RX2-SuperSpeed USB differential RX pair negative (Lane 2)Standard
RX2+SuperSpeed USB differential RX pair positive (Lane 2)Standard
GNDGround returnStandard
GNDGround returnStandard
TX2+SuperSpeed USB differential TX pair positive (Lane 2)Standard
TX2-SuperSpeed USB differential TX pair negative (Lane 2)Standard
VBUSBus power (5 V default, up to 48 V nominal with USB PD EPR)Standard
CC2Configuration Channel 2: attach detection, plug orientation and USB PD; whichever CC is not wired through the cable sources VCONNStandard
D+USB 2.0 differential pair positive (bottom)Standard
D-USB 2.0 differential pair negative (bottom)Standard
SBU2Sideband Use 2: USB4 sideband, Alternate Modes (e.g. DisplayPort AUX) and liquid detection; open or weakly pulled down when unusedStandard
VBUSBus power (5 V default, up to 48 V nominal with USB PD EPR)Standard
RX1-SuperSpeed USB differential RX pair negative (Lane 1)Standard
RX1+SuperSpeed USB differential RX pair positive (Lane 1)Standard
GNDGround returnStandard

Pin details

Select a pin on the diagram or table for full details.

Pin details

About this connector

Twenty-four-contact reversible USB Type-C receptacle with duplicated orientation contacts, configuration channels, data lanes, VBUS, and ground.

Notes

  • The receptacle duplicates key contacts so a USB-C plug can be inserted in either orientation.

Specifications

Standard
USB Type-C Release 2.5
Positions
24

Primary sources

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