QNAP TS-253D - NAS server - 2 bays - SATA 6Gb/s - RAID 0, 1, JBOD - RAM 4 GB - 2.5 Gigabit Ethernet - iSCSI support - Walmart.com
Memory RAM Upgrade for QNAP NAS TS-253B 4GB DDR3 SODIMM | eBay
Memory RAM Upgrade for QNAP NAS TS-253Be 4GB DDR3 SODIMM | eBay
QNAP TS-253Be-4G-US (4GB RAM Version) 2-Bay Professional NAS. Intel Celeron Apollo Lake J3455 Quad-core CPU with Hardware Encryption : Amazon.ae: Computers
QNAP TS-253D - NAS server - 2 bays - SATA 6Gb/s - RAID 0, 1, JBOD - RAM 4 GB - 2.5 Gigabit Ethernet - iSCSI support - Walmart.com
Amazon.com: QNAP TS-264-8G-US 2 Bay High-Performance Desktop NAS with Intel Celeron Quad-core Processor, M.2 PCIe Slots and Dual 2.5GbE (2.5G/1G/100M) Network Connectivity (Diskless) : Electronics
Memory upgrade for the ts-253be works perfectly. I ordered this memory upgrade from Amazon and it shows the full 16gb ram available on the system and so far works very well and