ValueRAM's 128M x 72-bit 1GB (1024MB) DDR2-667 CL5 SDRAM (Synchronous DRAM) "dual rank" Registered w/Parity memory module. The components on this module include eighteen 64M x 8-bit (16M x 8-bit x 4 Bank) DDR2-667 SDRAM in FBGA packages. This 240-pin DIMM uses gold contact fingers and requires +1.8V. The electrical and mechanical specifications are as follows: FEATURES: Clock Cycle Time (tCK) CL=5 3ns (min.) / 8ns (max.) Row Cycle Time (tRC) 54ns (min.) Refresh to Active/Refresh Command Time (tRFC) 105ns Row Active Time (tRAS) 39ns (min.) / 70,000ns (max.) Single Power Supply of +1.8V (+/- .1V) Power 3.087 W (operating) UL Rating 94 V - 0