How to Upgrade the Memory(RAM) of NAS | Qnap Advanced Support
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A-Tech 2GB Module for QNAP TS-x69 Pro x69L x69U TS-x59 Pro II Series NAS Servers - DDR3 1333MHz PC3-10600 Non-ECC SODIMM 1.5V Memory RAM (Replacement for QNAP RAM-2GDR3-SO-1333) at Amazon.com