Hypertec HY-4GDR3L-SO-1600 memory module 4 GB DDR3L 1600 MHz

Hypertec 4GB DDR3L RAM, 1600 MHz, SO-DIMM upgrade for TS-251, TS-451, TS-651, TS-851, TVS-X63 series, TVS-471/671/871 (Note: When installing two memory modules, please ensure that they are the same size and ideally use the same type of RAM for both memory slots.)