USB-C PD power splitter from Essence Engineering on Tindie
Amazon.com: Micro USB PoE Splitter 5V 2.4A Output, IEEE 802.3af Standard 10,100Mbps for USB RJ45 Port Power Over Ethernet USB Splitter Adapter (USB0502 Black) : Electronics
USB Splitter vs. USB Hub: Which Is Better? - EaseUS
Amazon.com: USB 2.0 Type C Female to Dual Micro USB Male Splitter Cable (2 Micro USB Splitter Extension Cord 12 Inch/ 8 Inch) - 1Ft : Cell Phones & Accessories
Single Port 10/100M PoE Splitter Cable with DC 12V Output, 13W - FS.com