This dual-bay enclosure not just lets you read two M.2 SSD simultaneously but also comes with an offline clone function.
Unitek S1206A SolidForce USB-C to PCIe/NVMe M.2 SSD 10Gbps Dual Bay Enclosure with Offline Clone
This Thunderbolt™ 3 to 4x M.2 PCIe SSD enclosure enables you to turn four M-Key PCI-Express based M.2 NVMe or AHCI solid state drives (SSDs) into a
4 Bay Thunderbolt 3 NVMe Enclosure, For M.2 NVMe SSD Drives, 1x DisplayPort Video/ 2x TB3 Downstream Ports, 40Gbps, 72W Power Supply, External Hard
USB 3.1 Gen 2 M.2 NVMe SSD Enclosure(RSH-329)
Sabrent Thunderbolt 3 to Dual NVMe M.2 SSD Tool-Free Enclosure EC-T3DN
Inland 2.5'' External SATA Hard Drive Enclosure with USB 3.0
Sabrent Thunderbolt 3 to Dual NVMe M.2 SSD Tool-Free Enclosure EC-T3DN
USB 3.0 to SATA Hard Drive Enclosure for 3.5-in. HDD & SSD
Convert an M.2 NGFF SATA SSD into a blazing fast USB 3.1 Type C external drive. For B key drives with SATA support only. Does NOT support NVMe PCIe
JacobsParts M.2 NGFF SATA SSD to USB 3.1 Type C External Drive Enclosure Case with UASP
USB 3.1 Gen 2 SATA SSD/HDD to USB-C Enclosure Adapter
Dual Protocol M2 SSD Case Enclosure NVMe SATA NGFF M.2 SSD Box USB