OWC 16GB DDR3 1333 MHz SODIMM Memory Kit (2 x 8GB, Mac) 16GB (2 x 8GB) Capacity, 1333 MHz Clock Speed, PC3-10600, 204-Pin SODIMM, 1.5V, 9-9-9 CAS Latency, Non-ECC, RoHS Certified COMPUTER MEMORY-Computer Memory