Amazon.com: PCI to PCI Express X16 Bridge Card Adapter with PLX Chipset Compatible with PCIe X1,X4,X8 : Electronics
Supermicro AOC-SLG3-2M2 PCIe Add-On Card for up to Two NVMe SSDs - YouTube
ASUS P7P55D-E Pro PCSTATS Review - PLX Bridge Chipset and Intel P55 Express
Xplained with Paint: PLX chips - YouTube
PLX PEX 8747 Mix and Match 3.0 and 2.0 | Overclock.net
This was an unexpected score. Looks like AMD had a Z490 chipset too... : r/Amd
PLX - Latest Articles and Reviews on AnandTech
Hassan Mujtaba on Twitter: "The top end Supermicro SuperO C9Z390 PGW motherboard comes with a PLX chip for extra PCIe lanes. Currently testin it out with the latest Bios rev. Good stuff.
Asu ROG MARS PLX chip - Whatswithjeff Tech News
PLX PCI9054-AC50PIF QFP PCI Bus Master I/O Accelerator Chip USA ship | eBay