iPartsleader Thunderbolt USB-C 4 Boards Type-C Port Jack Connector with Cable Repair Replacement for iMac (24-inch,M4,2024) A3247 A3137 821-05183-02 923-10854 (Yellow)

Compatible Models iMac 24 inch M1 2021 or M3 2023 Models, for iMac (24-inch, M4, 2024) A3247 (2-ports) A3137 (4-ports),
Model Identifier: Mac16, 2 (2-ports) Mac16, 3 (4-ports),
Model Number: A3247 (2-ports) A3137 (4-ports), EMC: 8531 (2-ports) 8532 (4-ports) ^^ What's Include1 Piece x USB-C Boards (with printed part number 821-05183-02 ), Note: the manufacturer part number 923-10853, silver /923-10854, yellow /923-10855, green /923-10856, blue /923-10857, pink /923-10858, purple /923-10859, orange ^^ Functions & CompatibilityDual vs.
Quad Array Configs: The base 8-core M4 iMac has two Thunderbolt / USB 4 ports. The 10-core models add an extra module housing two USB 3 ports (totaling 4 ports).
High-Speed Display Matrix: The M4 Thunderbolt ports support up to dual external 6K/60Hz displays.
Generational Compatibility: Physically identical to M1/M3 iMac port modules, but firmware and pinouts are mismatched. M4 models require dedicated M4-generation USB-C modules; older modules will trigger hardware communication drops or refuse display handshakes.
Aesthetic Color-Matching: The physical plastic interior housings are uniquely color-coordinated to match the exterior aluminum chassis shade ^^
RepairabilityZero Solder Design: Unlike the Mac mini where rear ports are permanently attached, the iMac's ports are entirely modular. They snap out cleanly using a simple press connector, The "Display
Barrier" Penalty: To access these modules, you must cut the structural foam adhesive sealing the 24-inch display panel to the chassis, No
Software Lockout: The USB-C modules do not contain cryptographic pairing keys. Aftermarket or donor replacements work immediately without Apple Diagnostic calibration tools ^^ Common FailuresWobbly Fatigue or
Total Mechanical Breakage: Heavy external desk hubs or constant accessory swapping stretches the internal pins, causing the port to drop connection when nudged.
Voltage Spikes from Hot-Plugging: Plugging high-wattage external docks into the ports can cause back-fed voltage surges, killing the local Thunderbolt controller chip on the daughterboard.
Corrosion: Dust and ambient moisture settle into the rear-facing ports, triggering localized oxidization on the VBUS or high-speed data pins ^^ Pro-TipsThe Hidden
Tape Screws: When gutting the inner layout, the iMac (24-inch, 2024) Repair Manual notes that the USB-C retaining shield has four hidden screws tucked beneath black tape. Always peel back the grounding tape before prying, or you will snap the internal frame. The "Flip and
Lift" Technique: The USB-C boards swing upward like a hinge before popping loose from the interconnect matrix. Pulling straight back will shear the delicate logic board pins.
Discharge Main Power Rails: The iMac has large internal power capacitors. Unplug the magnetic wall brick and hold the power button for 15 seconds before popping the screen to completely drop residual currents