QNAP 4-bay Tower NAS , Intel Celeron J6412 quad-core, onboard 8GB RAM (not expandable), 4 x 2.5-inch SATA slots, 2 x 2.5GbE, 1 x HDMI 1.4b (TS-410E-8G) | Rosman Australia
A-Tech 8GB RAM for QNAP TS-473A NAS | DDR4 2400MHz PC4-19200 ECC SODIMM 1.2V 260-Pin Memory Upgrade at Amazon.com