Amazon.com: PCIE to U.2 Adapter Card, PCIE X16 to 4 Port U.2 NVME SFF-8643/8639 Expansion Card, PCIE 4.0 U.2 Split Card with LED Indicator for Windows : Electronics
Amazon.com: ADT-LINK Riser PCI-E 3.0 16x to x1 PCIe x16 x1 PCI Express Riser Mining Graphics Card Extension Cable R13SC 25cm with Power Line (No Power Cable) : Electronics
PCIe-Bifurcation x16 to x4x4x4x4 Expansion Card PCI-E PCI-Express 3.0 x16 1 to 4 Gen3 Adapter Card SATA Power Port Split Card PC - AliExpress
Amazon.com: JMT PCI-E 4.0 x16 1 to 2 Expansion Card Gen4 Split Card PCIe-Bifurcation x16 to x8x8 with 20mm Spaced Slots CPU4P Power Supply Port (+4Pin Cable) : Electronics
What does PCI Express x16 look like and why is there the number 16? - Quora
StarTech.com PCI Express X1 to X16 Low Profile Slot Extension Adapter Card Model PEX1TO162 - Newegg.com