8GB Total memory using 2pc of 4GB 1600Mhz Module 204pin dimm DDR3-12800 Lifetime warranty for exchange. BRAND CMS We don't use OEM or Generic modules to avoid incompatibility issues. Guaranteed to work or you get all of your money back including shipping.. Max Memory 8GB Sockets 2 Compatible with ZOTAC ZBOX AD04, ZBOX AD04 PLUS, ZOTAC ZBOX AD06, ZOTAC ZBOX AD06