A-Tech 1GB 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-1GDR3-SO-1333) at Amazon.com
QNAP TS-469 Pro 4-bay NAS Server System *USED* (ram Upgraded) | eBay
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QNAP TS-469L-US High-performance 4-bay NAS Server for SMBs - Newegg.com