Amazon.com: QNAP TVS-h674-i5-32G-US 6 Bay High-Speed Desktop NAS with 12th Gen Intel Core CPU, up to 64GB DDR4 RAM, 2.5 GbE Networking and PCIe Gen 4 expandability (Diskless) : Electronics
Memory upgrade QNAP TVS-471 - YouTube
Memory RAM Upgrade for QNAP NAS TVS-471 4GB/8GB DDR3 SODIMM | eBay