Оперативная память/ QNAP RAM-4GDR3LA0-SO-1866 4GB DDR3L RAM, 1866 MHz, SO-DIMM for TS-253B, TS-453B, TS-453BU, TS-453BU-RP, TS-653B, TS-853BU, TS-853BU-RP, TS-1253BU, TS-1253BU-RP