HP/Compaq Premium Notebook Series Memory Upgrade Configurator - choose your Model:

HDX X16-1200EN
HDX X16-1200EO
HDX X16-1204TX
HDX X16-1250EF
HDX X16-1255EE
HDX X16-1258CA
HDX X16-1260ED
HDX X16-1260EL
HDX X16-1260ES
HDX X16-1275EA
HDX X16-1280EA
HDX X16-1280EZ
HDX X16-1299EB
HDX X16-1300EO
HDX X16-1310EA
HDX X16-1310EG
HDX X16-1330EF
HDX X16-1330ET
HDX X16-1353CA
HDX X16-1354CA
HDX X16-1355EE
HDX X16-1358CA
HDX X16-1370US
HDX X16-1375DX
HDX X16-1380ED
HDX X16-1390EL