Amazon.com: MHQJRH PCI Express SATA 3.0 Controller Card, 2-Port PCIe to SATA III 6GB / s Built-in Adapter Converter, PCI-E to SATA 3.0 Disk Array Card,with Small Bracket and 2 SATA Cable
StarTech.com 2-Port USB PCIe Card 10Gbps/port - USB 3.1/3.2 Gen 2 Type-A PCI Express 3.0 x2 Host Controller Expansion Card - Windows/Linux - USB adapter - PCIe 3.0 x4 - USB-C 3.1 Gen 2 x 2 - TAA Compliant
MAIWO M.2 expansion card KT058A NVMe SSD to PCIe 3.0 X16/X8/X4 adapter M Key Converter Card Support 2230 2242 2260 2280,Compatible with Windows 7/8/10 & Linux ,BTC accessories - Newegg.com
4I PCI Express 3.0 x16 to 4 x U.2 (SFF-8643) NVMe Switch Adapter
4-Port USB 3.0 PCIe
Dual M.2 PCIe NVMe X4 Adapter with PCIe Bifurcation Function, Support M.2 PCIe 3.0 SSD Soft RAID Setup in Windows/Mac/Linux