Type: 204-Pin DDR3 SO-DIMM Compatibility: For Apple iMac Cas Latency: 7 Timing: 7-7-7 Voltage: 1.5V Multi-channel Kit: Dual Channel kit Features: 8GB SODIMM KIT (2 x 4GB) for the Apple iMac Intel Core 2 Duo/Extreme & i5 – i7 / 13'' - 17'' (2009) machines. 100% tested in an actual iMac before shipping. 100% Compatibility Guaranteed. Made in the U.S.A. Parts: Lifetime limited