Kingston ValueRAM's KVR1066D3N7/4G is a 512M x 64-bit (4GB) DDR3-1066 CL7 SDRAM (Synchronous DRAM), 2Rx8 memory module, based on sixteen 256M x 8-bit DDR3-1066 FBGA components. The SPD is programmed to JEDEC standard latency DDR3-1066 timing of 7-7-7 at 1.5V. This 240-pin DIMM uses gold contact fingers.