Amazon.com: PCI-E SATA Expansion Card 6 Ports PCIe x4 to SATA 3.0 6Gbps Expansion Controller Adapter Card with 6 SATA Cables and Low Profile Bracket, Non-Raid(ASM1166) (PCIE X4 SATA 6 Ports) :
M.2 PCIe NVMe SSD to PCI-E Express 3.0 X4 X8 X16 Adapter Card Full Speed 2280 mm | eBay
PCI Express - Wikipedia
M.2 PCIe NVMe SSD to PCI-E Express 3.0 X4 X8 X16 Adapter Card Full Speed 2280 mm | eBay
U.2 to PCI-e Adapter, RIITOP PCIe 3.0 x4 to 2.5" U.2 (SFF-8639) SSD or
HP Z Turbo Drive 512GB - Internal M.2 - PCI Express 3.0 x4 (NVMe)
M.2 PCIe NVMe SSD to PCI-E Express 3.0 X4 X8 X16 Adapter Card Full Speed 2280 | eBay
Amazon.com: GELRHONR SFF-8643 to PCIE 4X Adapter, PCI Express 4X for SSD U.2 NVMe,PCIe Card to PCIe 3.0 x 4 Adapter,Compatible with X4 X6 X8 Slot for U.2 SSD Driver : Electronics
M.2 NVMe SSD NGFF TO PCIE 3.0 X16 /X4 adapter M Key interface card Support PCI Express 3.0 x4 2230-2280 Size m.2 FULL SPEED - Newegg.com
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
US$ 9.24 - XT-XINTE M Key M.2 NVMe PCI-e SSD NGFF Type to PCIE PCI Express 3.0 4X Adapter Card with Heatsink for PC Laptop Support 2242 2260 2280 - m.xt-xinte.com