SimpleTech STC-P7110/256 256MB PC2100 Non-ECC DDR 184pin DIMM Viable alternative to the OEM part 263472-B25 Twice as fast as standard SDRAM memory Delivers a wicked fast gaming experience and enhanced performance for all advanced computer processing Maintains a transfer rate of up to 2.1GB of data per second Highest quality assurance rating available - ISO9001 Certified