** Kingston Hyper X 2GB 256M x 64-Bit PC2-8500 CL5 240-Pin DIMM** Kingstons 256M x 64-bit 2GB (2048MB) DDR2-1066 CL5 SDRAM (Synchronous DRAM) memory module is based on sixteen 128M x 8-bit DDR2 FBGA components. This module has been tested to run at DDR2 1066 M Hz at a latency timing of 5-5-5-15 at 2.2V. The SPD is programmed to JEDEC standard latency 800 Mhz timing of 5-5-5-18 at 1.8V. This 240-pin DIMM uses gold contact fingers & requires +1.8V.