Kingston is the industry leader in PC memory. Our line of HyperX notebook memory is ideal for PC enthusiasts and gamers. You want the highest performance and speed you need HyperX memory from Kingston. Included in package is Two 1GB Modules of 667MHz DDR2 notebook memory. Specs include Non-ECC Low-Latency CL4 (4-4-4-12) SODIMM memory type, 256Mx64, 200-pin unbuffered, 1.8V, CL4, Gold.