QDA-A2MAR | Use two M.2 SATA SSDs in a single 2.5-inch SATA drive bay with RAID support for PC and NAS | QNAP
Buy HighPoint 4x M.2 Port to PCIe 3.0 x16 NVMe RAID Controller at Connection Public Sector Solutions
StarTech.com Dual-Slot M.2 to SATA Adapter - M.2 Adapter - RAID - S322M225R - Storage Mounts & Enclosures - CDW.com
HighPoint Releases the SSD7102: A Bootable Quad M.2 PCIe x16 NVMe SSD RAID Card
Marvell NativeRAID NVMe RAID for M.2 Solutions Comes to HPE
Amazon.com: 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) : Electronics
Samsung 950 Pro M.2 PCIe Gen 3x4 NVMe SSD RAID 0 Report
8-Port M.2 NVMe RAID Controllers Offer Up to 28,000 MB/s of Storage Bandwidth | Tom's Hardware