This product is either discontinued or we cannot get that from suppliers.
Brand: CORSAIR, Model: CMSA4GX3M1A1066C7, Type : 204-Pin DDR3 SO-DIMM, Compatibility: For Apple MacBook, MacBook Pro & iMac, Capacity: 4GB, Speed : DDR3 1066 (PC3 8500), CAS Latency : 7, Timing : 7-7-7-20, Voltage : 1.5V
CORSAIR's 4GB, 8GB, and 16GB Mac memory upgrade kits will help your system work better. With hassle-free compatibility and renowned CORSAIR reliability and support, they're a smart performance investment.