661-5577 - Apple iMac 27 AIO Intel Motherboard S1156

Technical specifications:
- Processor socket: LGA 1156
- Supported processors: Intel Core i5 and i7
- Chipset: Intel H55 Express
- Memory type: DDR3 SDRAM
- Maximum memory: 16 GB
- Memory slots: 4
- Graphics card: ATI Radeon HD 5670
- Video memory: 512 MB
- Display size: 27 inches
- Display resolution: 2560 x 1440 pixels
- Hard drive interface: SATA
- Audio: Stereo speakers

Helpful notes:
- This motherboard is compatible with the late 2009 and mid 2010 27-inch iMac models.
- Upgrading the memory and hard drive can significantly improve the performance of your iMac.
- It is recommended to seek professional assistance when replacing the motherboard in your iMac.