OWC Mac Memory 8GB 1066Mhz DDR3 SODIMM Mac MemoryThe 8GB DDR3 1066 MHz SO DIMM Memory Module from OWC features an 8GB DDR3 SDRAM module. Each module runs at 1066 MHz on a voltage of 1. 5V. This OWC memory upgrade fully meets Apple's specifications and is also RoHS certified. FEATURES Technology: DDR3 SDRAM Density: 8GB (8192MB) RoHS: Yes Pin Count: 204 pin Op. Temp.: 0C to +85C Data Rate: DDR3 1066 Speed: PC3 8500 CL: CL = 7 Cycle Time: 1. 875ns Voltage: 1. 5V ECC: Non ECC Module Ranks: Dual Rank