Model Identifier: iMac12,1
Model Number: A1311
Part Number: MC309LL/A
UPC: 885909400508
ASIN: B004YKXGIK
Description: 21.5-inch display, 2.5GHz Intel Core i5, 4GB 1333MHz DDR3 SDRAM - 2x2GB, 500GB Serial ATA hard drive, AMD Radeon HD 6750M graphics
Website: http://www.everymac.com/systems/apple/imac/specs/imac-core-i5-2.5-21-inch-aluminum-mid-2011-thunderbolt-specs.html
Off Power: W
Standby Power: W
Idle Power: 81.0 W
Max Power: 106.0 W
Average Power: W
Idle Thermal Output: 276.0 BTU/h
Max thermal Output: 362.0 BTU/h