Apple 661-5531 | 3.60GHz CPU Logic Board (Motherboard) for iMac 27-inch Mid 2010 A1312

Technical Specifications:
- Processor: 3.60GHz quad-core Intel Core i5 or 2.93GHz quad-core Intel Core i7
- Graphics: ATI Radeon HD 5670 graphics processor with 512MB of GDDR3 memory
- Memory: Four 240-pin DDR3 SDRAM slots supporting up to 16GB of RAM
- Storage: 1TB 7200-rpm Serial ATA hard drive or 256GB solid-state drive
- Optical Drive: 8x SuperDrive with double-layer support (DVD±R DL/DVD±RW/CD-RW)
- Ports: Four USB 2.0 ports, one FireWire 800 port, one Gigabit Ethernet port, one SDXC card slot, one headphone/optical digital audio output, one Mini DisplayPort output with support for DVI, VGA, and dual-link DVI (adapters sold separately)
- Wireless: Wi-Fi 802.11n and Bluetooth 2.1 + EDR
- Audio: Built-in stereo speakers, built-in microphone, and support for Apple iPhone headset with microphone
- Display: 27-inch LED-backlit glossy widescreen TFT display with IPS technology and a resolution of 2560x1440 pixels
- Camera: Built-in iSight camera
- Dimensions: 20.4 x 25.6 x 8.15 inches (51.7 x 65.0 x 20.7 cm)
- Weight: 30.5 pounds (13.8 kg)

Helpful Notes:
- This logic board is compatible only with the 27-inch iMac Mid 2010 model A1312.
- Upgrading the RAM to the maximum capacity can significantly improve the performance of the iMac.
- The Mini DisplayPort output can be used to connect a second display or a projector.