OFFTEK 512MB Replacement Memory RAM Upgrade for Acer TravelMate 5720-6615 (DDR2-5300) Laptop Memory at Amazon.com
Product data Acer TravelMate 5720-6722 T7100 15.4" Intel® Core™2 Duo 1 GB DDR2-SDRAM 120 GB Intel® GMA X3100 Windows XP Professional Notebooks (LX.TKE06.001)
Acer TravelMate 5720G review | TechRadar
4GB 2X2GB RAM Memory for Acer TravelMate 7320 Black Diamond Memory Module DDR2 SO-DIMM 200pin PC2-6400 800MHz Upgrade System Specific Memory - Newegg.com