Centon 2GB DDR2 SDRAM Memory Module - 2GB - 533MHz DDR2-533/PC2-4200 - Non-ECC - DDR2 SDRAM - 240-pin DIMM Enables efficient and smooth execution of all your heavy-duty applications with maximum productivity 533 MHz of memory speed with unbuffered signal allows you to browse web, listen to songs and use routine software simultaneously DIMM 2 GB memory smoothly executes complex apps and games DDR2-533/PC2-4200 interface synchronizes electrical and clock signals for an efficient data transfer rate 240-pin for faster, dependable performance and better access to data and information DIMM form factor with 240-pin and 2 GB memory size for enhanced performance and speed to allow maximum usability Unbuffered signal processing for dependable programmability of the processor for easy optimization of digital signals