Acer Aspire One Netbook Memory Upgrade Configurator - choose your Model:

10.1" A150 (AOD150-xxxx)
521 Series AO521-xxx
531
532
532h
533 AO533-xxx
721 AO271-xxx
751
752 AO752-xxx
753 AO753-xxx
A110
A150
AO531h
D150
D250
D255
D255 (DDR2) AOD255-xxx
D260 (DDR2)
D260 (DDR3)
Happy-xxx (DDR2)
Happy-xxx (DDR3)
Pro 531
Pro 531h