Never have purchased anything but Crucial since 2001 for too many computers and never have had a single instance except flawless performance. Buying Crucial brand RAM from resellers such as Newegg provides legendary quality, life-time warranty and competitive or even lower prices to no-name or generic.
NEVER buy RAM on eBay from China unless absolutely sure source is solid. A LOT of RAM sold on eBay are fakes (check eBay's own cautions).
100% Old School tablet setup:
Sahara i440D - 4GB/500GB/7200 - Vista screams!
HP TC1100 1.2 - 2GB/160GB/5400 - Vista - portrait - primary computer.
HP TC1100 1.2 - 2GB/160GB/5400 - Vista - primary work computer.
HP TC1100 1.0 - 2GB/60GB/7200 - XP - laptop - partner's primary computer.
Acer 303xmi 1.6 - 2GB/100GB/7200 - Vista - laptop - work computer.
Motion M1300 1.0 - 2GB/60GB/7200 - Vista - semi-retired (needs repair).
Motion M1300 - for parts.
Motion M1400VA - awaiting resurrection.