Arduino Uno Ethernet POE with USB to Serial adapter | Flickr
Arduino Ethernet Rev3 WITHOUT PoE [A000068] - $49.80 : SpikenzieLabs, Great electronics kits
Arduino ETHERNET shield 2 CON PoE - RETAIL - Corzotech
Amazon.com: KEYESTUDIO W5500 Ethernet Control Board for Arduino, Microcontroller+Ethernet/Micro SD Shield+microUSB(Without POE) : Electronics
Amazon.com: SunFounder Ethernet Shield W5100 Compatible with Arduino UNO R3 Mega 2560 1280 A057 : Electronics
Arduino Uno Ethernet : ID 418 : $65.00 : Adafruit Industries, Unique & fun DIY electronics and kits
Arduino Ethernet Shield 2 — Arduino Online Shop
Amazon.com: KEYESTUDIO W5100 Ethernet Shield Without POE for Arduino R3 Mega 2560, Wiznet W5100 Ethernet Network Micro SD Card Slot for Arduino to Internet : Electronics