For the ultimate notebook memory upgrade get a Gigabyte RAM module. Allowing you to run more applications and improve overall system speed. Toshiba memory products are designed to meet the exact specification requirements of each system set by Toshiba. Double Data Rate Synchronous Dynamic Random-Access Memory Data is read on both the rising and the falling edge of the computer clock, thereby delivering twice the bandwidth of standard SDRAM. With DDR SDRAM, memory speed doubles without increasin