APPLE MB983G/A COMP 8GB DDR3-1066MHZ ECC CL7 DRX8 UDIMMAddOn 8 GB DDR3 SDRAM Memory Module 8 GB (1 x 8GB) DDR3 1066 PC3 8500 DDR3 SDRAM 1066 MHz Dual rank Memory CL7 1. 50 V ECC Unbuffered 240 pin UDIMM Lifetime Warranty VPN: MB983G A AM SKU: RSC669416 UPC: 195285053992 8 GB bar will run multiple applications together and enhance your computer's performance 1066 MHz speed to execute routine softwares at a steady pace DDR3 1066 PC3 8500 interface multiplexes 2 bit data from memory cell and I O buses to