Apple iMac 27" A1312 Series 820-2733-A Intel All-In-One Logic Motherboard. Apple meets the current and future demands of high performance, power embedded computing, making it ideal for communications, transaction terminal, interactive client, industrial automation applications as well as for standard home use.

Apple Part Number: 820-2733-A
Compatible Part Numbers: 661-5428 661-5429 31PIIMB0040 31PIIMB0050
Compatible Models: Apple iMac 27" A1312 Late 2009 MB953LL MB953LLCTO Series

Please Note: This motherboard does NOT come with a CPU.