• 2GB (1GB 128M x 64-Bit x 2 pcs. ) DDR2-800 CL5 240-Pin DIMM Kit• Clock Cycle Time (tCK) CL=5 2. 5ns (min. ) / 8ns (max. )• Row Cycle Time (tRC) 57. 5ns (min. )• Refresh to Active/Refresh Command Time (tRFC) 127. 5ns• Row Active Time (tRAS) 45ns (min. ) / 70,000ns (max. )• Single Power Supply of +1. 8V (+/- . 1V)• Power 1. 355 W (operating per module)• UL Rating 94 V - 0