TROPRO PCI-Express 4X to USB 3.1 Gen 2 (10 Gbps) 2-Port Type C Expansion Card Asmedia Chipset for Windows 7/8/10/Linux/MAC OS 10.14 – PCI Express USB C Card(2X Type-C Port) - Newegg.com
NGFF M.2 to PCI-E 4x 1x Slot Riser Card Adapter M2 to PCIE X4 Converter Extender - Walmart.com
Asus M4A89GTD Pro/USB Motherboard Review | bit-tech.net
Amazon.com: SinLoon PCI- Express 4X Riser Card 90-Degree Adapter Card PCI-E 4X Extender Extension Card for 1U, Small Computer and Server Case (PCIE 4X) : Electronics
Amazon.com: A ADWITS PCI Express 3.0 4X 8X 16x to M.2 NVMe and AHCI SSD Adapter Card with Heat Sink, Bracket-Free and Compatible with Samsung 960 970 EVO PRO WD Black and