This 1Gb internal stick replaces the 256 or 512Mb memory card installed in the EEE for the maximum 1Gb System RAM. This is an SO-DIMM stick of memory @ 667Mhz.
This is a user-replaceable item (it can be installed in less than a minute). There is only one slot in the EEE for memory, max 1Gb.
Corsair Memory with lifetime warranty.