Apple iMac 21.5" A1311 Late 2009 Series 820-2494-A 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: 820-2494-A
Compatible Part Numbers: 661-5305 31PIFMB0070 CE3F
Compatible Models: Apple iMac 21.5" (A1311) Late 2009 MC4133LL/A MB950LL/A Series

Please Note: The CPU is not included with the motherboard.