2GB RAM Memory for Acer Aspire E1-571-6492, E1-421, One (521), One (522), One (533) Black Diamond Memory Module DDR3 SO-DIMM 204pin PC3-10600 1333MHz Upgrade System Specific Memory - Newegg.com
Memoria Ram Ddr3 2gb Desktop | Pc Memory Ram Memoria Module | Ram 2gb Ddr3 Computer - Pc - Aliexpress
Acer Aspire One 533 with DDR3 memory coming soon - Liliputing