This product is either discontinued or we cannot get that from suppliers.
G.SKILL FA-10666CL9D-8GBSQ, Dual Channel Sodimm, 204-Pin DDR3 SO-DIMM, For Apple Notebook, 8GB (2 x 4GB), Speed DDR3 1333 (PC3 10666), Cas Latency 9, 1.5V.
Designed for Apple’s Mac systems, the G.SKILL DDR3 SO-DIMM for Mac series is hand-tested for compatibility, reliability, and stability - all in the G.SKILL memory tradition. Ensure your DDR3 Mac system is running in tip-top shape.