StarTech.com Dual slot USB 3.1 (10 Gb/s) enclosure for 2 SSD M.2 SATA with RAID - Hard drive enclosure - LDLC 3-year warranty
RAID - adding disks to a Pi
Enclosure, Dual M.2 - USB 3.1 - RAID - External Drive Enclosures | StarTech.com Europe
USB 3.0 & eSATA to 5 SATA Port Multiplier & RAID Adapter - from LINDY UK
DIGITUS 2.5' USB3.0 SSD/HDD RAID SATA enclosure DA-71116 - Axdata
Amazon.com: 2 Bay RAID Hard Drive Enclosure, cenmate External USB 3.0/USB C to SATA RAID HDD Docking Station Support RAID 0, RAID 1, Normal, JBOD for 2.5"/3.5" HDD SSD RAID Storage 2x16TB :