4GB RAM Memory for Toshiba Satellite A500-19D Black Diamond Memory Module DDR3 SO-DIMM 204pin PC3-8500 1066MHz Upgrade - Newegg.com
4GB Team High Performance Memory RAM Upgrade Single Stick For Toshiba Satellite A500-ST56X6 A500-ST56 X7 A500-ST6622 A500-ST6644 Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com