This 2GB DDR2 SODIMM memory module for Mac has a CAS Latency of 5-5-5-15 and a test voltage of 1.8V. It is unbuffered, non-ECC and has 6 layer PCB. The memory is 200-pin SO-DIMM. This Mac SODIMM is compatible with DDR2 models of the Mac mini, MacBook Pro & iMAC.