This is the Cooling Fan for the A1425 series laptop for CPU processor and GPU card, attaches to your existing heatsink module. Cooler sold without a passive copper heatsink which is designed to evacuate the dissipated heat that is inside the case of your laptop. The fan uses an integrated flex cable to connect to the mainboard. The cable connects via ZiF connector making it a plug and play replacement module, NO soldering is required. Manufacturer Part Number(s): CPU Fan Part Number(s): CC120K04A, 610-0170-01, 610-0170-A, KDB0405HC, UDQFZ8R11DQU, MG40060V1-C000-S9A GPU Fan Part Number(s): CC120K05A, 610-0169-01, 610-0169-A, MG40060V1-C001-S9A Related Part #: 923-0220, 923-0221 Specifications: Direct Current: DC 5V / 0.4A, 1.25W Color: Black Connection: ZiF plug-in Reference Compatible with A1425 Late 2012 Early 2013: - MacB00kPro10,2 A1425 Late 2012: MD212LL/A (2.5 GHz Core i5) EMC: 2557 - MacB00kPro10,2 A1425 Late 2012: BTO/CTO (2.9 GHz Core i7) EMC: 2557 - MacB00kPro10,2 A1425 Early 2013: ME662LL/A (2.6 GHz Core i5) EMC: 2672 - MacB00kPro10,2 A1425 Early 2013: BTO/CTO (3 GHz Core i7) EMC: 2672 What's in the Box: 1x CPU Cooling Fan (LEFT side) 1x GPU Cooling Fan (RIGHT side)