NanoPi M4 SBC Metal Case Comes with an NVMe SSD Adapter and Cooling Fan : r/SBCGaming
DUV1 - Universal DIN rail mount for PCB, SBC, SSD - DINrPlate
EEM2-SBC SuperSpeed+ USB-C - M.2 SATA SSD RAW Box | Axagon
Amazon.com: youyeetoo Rock 3 Model A SBC Rockchip RK3568 Quad-core Cortex-A55 Processor Brings M.2 Slots for NVMe SSD, WiFi 6 to Raspberry Pi Form Factor (4G Version) : Electronics