SwitchBlox Nano - Tiny 3 Port Ethernet Switch from BotBlox on Tindie
Amazon.com: 10/100Mbps 5 Port Micro USB Power Supply Fast Ethernet LAN RJ45 Network Switch Hub Support Power Bank Laptop … (8 Ports 10/100Mbps) : Electronics
WuT data sheet: Ethernet Switch Industry, 4 Port
Unicom Micro-Switch/5 Fast Ethernet Switch 5-Port 10/100MBPS with Power Adapter | eBay