EDGE 1GB DDR2 SDRAM Memory Module - For Desktop PC - 1 GB (1 x 1GB) - DDR2-667/PC2-5300 DDR2 SDRAM - 667 MHz - Non-ECC - Unbuffered - 240-pin - DIMM - Lifetime Warranty

Up to 667 MHz speed is enough to run heavy software smoothly while surfing web with dozens of tabs open DIMM 1 GB memory allows you to have more programs open at a time 240-pin-pin DDR2-667/PC2-5300 operates at up to 400 MHz data bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation