The best memory upgrades for your Sony Vaio VGN-U/X/Y Series VGN-UX490N/C Netbook (UMPC)!
We've spent years amassing all the information we need to make sure you get the right memory for your Sony Vaio VGN-U/X/Y Series VGN-UX490N/C Netbook (UMPC).
We guarantee this memory will work in your machine for the life of your machine. Your Sony Vaio VGN-U/X/Y Series VGN-UX490N/C supports up to 1024 MB in one slots and modules must be installed one at a time.