The Twin3X2048-1066C7 is a 2048 MByte matched pair of DDR3 SDRAM DIMM's. This part delivers outstandingperformance in the latest generation of dual-channel DDR3-based motherboards. It has been tested extensively inmultiple DDR3 motherboards to ensure compatibility and performance at its rated speed. This memory has beenverified to operate at 1066MHz at low latencies of 7-7-7-21.