USB-C Receptacle Pinout (Color-Coded, Horizontal)

flowchart LR

  %% Bottom row: B-side pins (front view, pin side)
  subgraph Brow["B-side (Bottom Row)"]
    direction RL
    B12["B12<br />GND"]:::gnd ---
    B11["B11<br />TX2+"]:::ss ---
    B10["B10<br />TX2−"]:::ss ---
    B9["B9<br />VBUS"]:::vbus ---
    B8["B8<br />SBU2"]:::sbu ---
    B7["B7<br />D−"]:::usb2 ---
    B6["B6<br />D+"]:::usb2 ---
    B5["B5<br />CC2"]:::cc ---
    B4["B4<br />VBUS"]:::vbus ---
    B3["B3<br />RX1−"]:::ss ---
    B2["B2<br />RX1+"]:::ss ---
    B1["B1<br />GND"]:::gnd
  end
  
  %% Top row: A-side pins (front view, pin side)
  subgraph Arow["A-side (Top Row)"]
    direction LR
    A1["A1<br />GND"]:::gnd ---
    A2["A2<br />TX1+"]:::ss ---
    A3["A3<br />TX1−"]:::ss ---
    A4["A4<br />VBUS"]:::vbus ---
    A5["A5<br />CC1"]:::cc ---
    A6["A6<br />D+"]:::usb2 ---
    A7["A7<br />D−"]:::usb2 ---
    A8["A8<br />SBU1"]:::sbu ---
    A9["A9<br />VBUS"]:::vbus ---
    A10["A10<br />RX2−"]:::ss ---
    A11["A11<br />RX2+"]:::ss ---
    A12["A12<br />GND"]:::gnd
  end
  

  %% Styling
  classDef default color:black,stroke:#333;
  classDef gnd  fill:#4CAF50,stroke:#333,color:white;   %% Ground
  classDef ss   fill:#2196F3,stroke:#333,color:white;   %% USB 3.x / high-speed lanes
  classDef usb2 fill:#B39DDB,stroke:#333,color:black;   %% USB 2.0 D+/D-
  classDef sbu  fill:#FF9800,stroke:#333,color:black;   %% Sideband use
  classDef cc   fill:#FFEB3B,stroke:#333,color:black;   %% CC / PD communication
  classDef vbus fill:#F44336,stroke:#333,color:white;   %% Bus power

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Legend

Color	Function
🟩 Green	GND (ground return)
🔵 Blue	High-speed TX/RX pairs (USB 3.x / USB4 / DP)
🟣 Purple	USB 2.0 D+ / D−
🟧 Orange	SBU (sideband use: DP AUX, TB, debug)
🟡 Yellow	CC1 / CC2 (configuration + PD comms)
🔴 Red	VBUS (5–48V, depending on PD contract)

Front view = looking into the receptacle, pin side.
Orientation flip swaps A/B rows, but the functional groups (colors) stay the same.