661-16557 iMac 24″ A2438 M1 8-core CPU, 7-core GPU, 8GB, 256GB Logic Board 820-02009-A

Product Details:

Apple Part Number: 661-16557
Logic Board Number: 820-02009-A
Compatible System: Apple iMac 24″ M1 (2021) — Model A2438
EMC Number: 3662

Technical Specifications:

Processor: Apple M1 SoC with 8-core CPU

4 performance cores
4 efficiency cores
Graphics: Integrated 7-core GPU
Memory: 8GB Unified LPDDR4X-4266 MHz RAM (non-upgradable)
Storage: 256GB NVMe SSD (onboard and not replaceable)

Connectivity:

Wi-Fi 6 (802.11ax)
Bluetooth 5.0
Ports Supported: Compatible with both 2-Port and 4-Port versions of iMac A2438
Thermal Support: Mounts for internal cooling system and heatsink
 

Compatibility Notice:

This logic board is only compatible with the 2021 iMac 24″ with Apple Silicon (Model A2438).
It is not compatible with Intel-based iMacs or M1 Pro/M1 Max variants.