Acer Aspire 5100  1GB DDR2 MEMORY RAM HYMP564CP6-C4 AB 2 STICKS OF 512MB FOR A TOTAL OF 1GB -- PULLED FROM ACER 5100 laptop but should work in most laptops that use the ddr2 1gb ram     TESTED -- 100% Functional ==       If for some reason you are not satisfied with received item, e-mail us through eBay message system. Don't leave negative feedback, money back guaranteed! We value your time and business.   Actual item is pictured!  Please look carefully for the item you will receive.