Amazon and B&H are discounting the QNAP TS-453D 4-Bay NAS Enclosure to $399.00 ($100 Black Friday savings from the regular price of $499).
This is the lowest price seen yet for this 4-Bay NAS, which has an Intel Celeron J4125 quad-core 2.0 GHz processor and 2.5GbE connectivity. It also supports PCIe expansion, 4K HDMI output and real-time transcoding.