I brought back an old ASUS K53SC from the dead. Still need to take care of a few issues with it but it's alive. : r/ASUS
Memory RAM Upgrade for Asus K53SV 4GB DDR3 SODIMM | eBay
ASUS K53SC Review: ASUS K53SC review: A 15.6in laptop with lots of RAM and storage space, but it could use a better keyboard - Notebooks - Entry Level - PC World Australia
Computer memory 4GB DDR3 - Asus K53SC-SX471V RAM buy
Amazon.com: OFFTEK Memoria RAM de repuesto de 1 GB para memoria portátil Asus K53SC (DDR3-10600) : Electrónica