CD3217B12 /A2442 M1 Pro/Max USB-C Port Controller Chip

Overview

The CD3217B12 USB-C Port Controller IC (commonly designated in schematics as U5200, U3100, or U3200) is a specialized Power Delivery (PD) controller responsible for managing USB Type-C communication, power handshaking, and high-voltage negotiation on modern Apple Silicon MacBooks.

When a MacBook is stuck drawing only 5V from the charger instead of negotiating up to 20V, or if specific USB-C/Thunderbolt ports fail to detect chargers and external peripherals, replacing the damaged CD3217B12 chip is the primary micro-soldering repair solution.

Key Features

• OEM-Grade Component: High-precision BGA Integrated Circuit designed for precise voltage regulation and data communication line switching.

• Power Delivery Handshake: Toggles the charger handshake from standard 5V up to full fast-charging 20V operation.

• Multi-Port Logic Support: Works across individual USB-C / Thunderbolt port controller lines on Apple Silicon logic boards.

Compatible MacBook Models

• MacBook Pro 14-inch:

  • A2442 (2021 – M1 Pro / M1 Max)

  • A2779 (2023 – M2 Pro / M2 Max)

  • A2918 / A2992 (2023 – M3 / M3 Pro / M3 Max)

• MacBook Pro 16-inch:

  • A2485 (2021 – M1 Pro / M1 Max)

  • A2780 (2023 – M2 Pro / M2 Max)

  • A2991 (2023 – M3 Pro / M3 Max)

• MacBook Pro 13-inch & MacBook Air:

  • A2338 (2020 – M1 / 2022 – M2)

  • A2337 (2020 – M1 Air)

  • A2681 (2022 – M2 Air)

Technical Specifications

• Part Markings / MPN: CD3217B12 / CD3217B12ACE / CD3217

• Schematic Location Identifiers: U5200, U3100, U3200

• Package Type: BGA (Ball Grid Array)

• Condition: Brand New

Note for Technicians: Soldering and replacing BGA IC chips requires professional micro-soldering tools, quality flux, and hot air rework experience. Ensure exact revision compatibility (e.g., B12) prior to installation, as different CD3217 revisions are generally not cross-compatible.