Corsair Mac Memory 8GB (1x 8GB) 1333 M Hz C9 DDR3 SODIMM for Apple i Mac Mac Book & Mac Book Pro Tested at Apple Developer Compatibility Labs to ensure functionality with all current products that have Intel Core i 5 & Core i 7 processors Adding system memory is one of the most effective ways to improve overall performance & Corsair’s Mac Memory offers a solid memory upgrade solution with a limited lifetime warranty Product Features Upgrade Type System specific Storage Capacity 8 GB 1333 M Hz CL9 9-9-9-24 latency 8GB 1x 8GB So-Dimm Technical Details Compatible with the following models MC936 MC816 MC815 MC814 MC813 MC812 MC725 MC723 MC721 MC724 MC700 MC309 MD311 MD318 MD322 MD313 MD 314 Density 8GB (1x 8GB SO-DIMM) Speed 1333 M Hz CL9 Timing 9-9-9-24 (1333 MHz) Type DDR3 Format SO-DIMM Pin Out 204 Pin Voltage 15V