PCIe x1 to 3 x1 Slot PCI-e Express Switch Multiplier Hub GPU Riser Card Adapter w/USB 3.0 Cable,PCIe 1x to 3 Ports Splitter Power by SATA & Molex for Video Card Mining
Quad Port 10/100/1000Mbps Gigabit PCI-E NIC Network Card for PC, RTL8111H Chip, PCI-Express 2.0 X1, RJ45 LAN Port
What are the top uses of PCIe x1 Slots? – Premio Inc