EDGE Tech 1GB DDR2 SDRAM Memory Module - 1GB - 533MHz DDR2-533/PC2-4200 - Non-ECC - DDR2 SDRAM - 200-pin SoDIMM

533 MHz memory speed for great multitasking capability SoDIMM 1 GB memory allows you to have more programs open at a time DDR2-533/PC2-4200 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