25LC640AT-E/SN16KV09 25LC640AT-E/SN16KV22 25LC640AT-E/SN16KV24 25LC640AT-E/SN16KV28 25LC640AT-E/SN16KV29 25LC640AT-E/SN16KV33 25LC640AT-E/SN16KVAO 25LC640AT-E/ST 25LC640AT-E/ST IC 25LC640AT-E/ST16KV30