On sale is this 2 bay NAS from TerraMaster which is a successor to the F2-221 2 Bay NAS with a number of improvements. This includes the faster Intel Celeron N4505 dual-core CPU, 4GB DDR4 RAM (Upgradeable to 32GB), dual 2.5GbE ethernet ports and two USB 3.2 Gen2 10Gbps ports.
The NAS is suitable for Plex transcoding, file storage, backups, Docker etc. and supports single disk, RAID 0, RAID 1 and JBOD. The NAS is running TerraMaster's TOS 5.1 operating system which continues to improve or you can unofficially install another OS like Synology DSM, Linux or Windows.
Alternatively you can get the TerraMaster F2-423 2 Bay NAS for $407.99 with the better Intel Celeron N5095 quad-core CPU.
The 5 bay is only 40 ish dollars more but is USB 3.1
https://www.amazon.com.au/TerraMaster-D5-300-External-Enclos…