CMS 1GB (1X1GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Acer® Aspire One Zg5 Netbook Ddr2 Sodimm - A58
Acer Aspire One Disassembly. Upgrade RAM memory and HDD | SURPAN.CZ - YouTube
320GB 2.5" Sata Hard Drive Disk Hdd for Acer Aspire One 8-9-zg5 AO521 AO521-zh9 AO531h AO532h-nav50 AO533-pav01 AO721 AOA150-zg5 AOD250-kav60 AOD255-pav70 AOD255e-pav70 AOE100 AOHAPPY AOP531h
Acer Aspire One ZG5 Hard Drive Replacement - iFixit Repair Guide