Apple 661-4994 820-2491-A  Intel iMac 24" 2.66GHz A1225 Logic Board. Apple Motherboard Raises The Bar Of PC Industry And Deliver A Full-value, High-performance Solution For Today's Most Demanding Tasks.

Manufacturer: Apple
Part Numbers: 661-4994 820-2491-A
Compatible Part Numbers: 661-5132 820-2491-A
Compatible  Models: iMac 24" 2.66GHz Core 2 Duo A1225 Early 2009 MB418LL

Specifications:

CPU Socket mPGA478MN
Supports Intel 2.66GHz CPU
3 x USB Port
RJ-45 (LAN)
FireWire

Please note: this motherboard comes with Intel Core 2 Duo 2.66GHZ CPU and Heat sink