The TerraMaster D2 is a serviceable, more affordable alternative for RAID backup
TerraMaster D2 Thunderbolt 3 2-Bay DAS Review | eTeknix
Noontec-TerraMaster D2-310: Direct Attached Storage With A Kick. - Page 2 Of 4 - Modders Inc
Amazon.com: TERRAMASTER D2-310 USB Type C External Hard Drive RAID Enclosure USB3.1 (Gen1) 2-Bay RAID Storage Support RAID 0/1/Single (Diskless) : Electronics
TerraMaster D2 -300 SSD/Hard Drive Duplicator, USB3.1 (5Gbps) Type C 2Bay SATA External Hard Drive Enclosure (Diskless) - Newegg.com
TerraMaster D2 Thunderbolt 3 DAS Review
TerraMaster 2-Bay RAID Storage D2-310 USB3.1 Type C External Hard Drive RAID Enclosure (Diskless) - Walmart.com