BLS8G3D1609DS1S00 is a single 8gb ddr3 module that operates at speeds up to 1600 MT/s and has a cl9 latency with extended timings of 9-9-9-24. It is performance and is non-ecc. It conforms to the industry standard UDIMM layout of 240 pins and is compatible with computers that take ddr3 UDIMM memory.