6 SSD RAID 0 with the Icy Dock ExpressCage MB326SP-B - YouTube
Shop | StarTech.com 2x M.2 NGFF SSD RAID Controller Card plus 2x SATA III Ports - PCIe - Two Slot PCI Express M.2 RAID Card plus Two SATA Ports (PEXM2SAT3422) - storage
Amazon.com: QNAP Dual M.2 SATA SSD to 2.5” SATA RAID Adapter Converter - 2 x M.2 2280 SSD to 3.5” SATA Adapter with RAID Support for PC and NAS. (QDA-A2MAR) : Electronics
SSD RAID: Is It Necessary and How to Realize It with a Low Cost?
2x Synology 16 bay racks w/ 18 2TB SSD in Raid 6 : r/DataHoarder