661-16555 iMac 24″ A2438 M1 8-core CPU, 8-core GPU, 16GB, 1TB Logic Board 820-02009-A

Product Information

Part Name: Logic Board – Apple iMac 24″ A2438 M1, 8-Core CPU / 8-Core GPU / 16GB RAM / 1TB SSD
Apple Part Number: 661-16555
Logic Board Number: 820-02009-A
Compatible Model: iMac 24″ – M1 (2021), A2438 (4-Port or 2-Port)
EMC Number: 3662

 

Technical Description

This logic board assembly is designed for the Apple iMac 24-inch (2021) Model A2438, featuring Apple’s powerful first-generation M1 SoC with upgraded integrated GPU, memory, and storage.

Key Specifications:

Apple M1 Chip: 8-core CPU (4 performance cores + 4 efficiency cores) and 8-core GPU on 5nm process.
Unified Memory: 16GB LPDDR4X-4266 MHz RAM (integrated, non-upgradable).
Internal Storage: 1TB NVMe SSD (onboard).
Wireless Connectivity: Built-in Wi-Fi 6 (802.11ax) and Bluetooth 5.0 modules.
I/O Support: Compatible with both 4-port and 2-port A2438 configurations.
Thermal Design: Includes mount points for cooling fan and thermal solutions.

 
 Compatibility Notice:

Only compatible with iMac 24″ M1 (2021) Model A2438. Not suitable for older Intel-based models or M1 Pro / Max systems.