Amazon.com: HP J3G92AA AMD FirePro W5100 - Graphics Card - FirePro W5100-4 GB GDDR5 - PCI Express 3.0 x16-4 x DisplayPort - for Workstation Z440, Z640, Z840 : Electronics
HiLetgo W5100 Ethernet Network Shield W5100 Ethernet Expansion Board with SD Card Slot for Arduino UNO MEGA2560
Amazon.com: Yoidesu Ethernet Shield W5100 Network Expansion Board TCP and UDP for Arduino Motherboard (All Versions), for UNO, for mega 1280, for mega 2560. : Electronics
HiLetgo W5100 Ethernet Network Shield W5100 Ethernet Expansion Board with SD Card Slot for Arduino UNO MEGA2560
Amazon.com: HP J3G92AA AMD FirePro W5100 - Graphics Card - FirePro W5100-4 GB GDDR5 - PCI Express 3.0 x16-4 x DisplayPort - for Workstation Z440, Z640, Z840 : Electronics
W5100 Ethernet Shield - RobotShop
Amazon.com: W5100 LAN Ethernet R3 Shield Module Micro SD WizNet TCP/IP Network Development Board for Arduino Duem Mega 2560 : Electronics
Amazon.com: SunFounder Ethernet Shield W5100 Compatible with Arduino UNO R3 Mega 2560 1280 A057 : Electronics
10PCS/LOT TOP Mini W5100 LAN Ethernet Shield Network Module Board Best: Amazon.com: Industrial & Scientific
Amazon.com: SunFounder Ethernet Shield W5100 Compatible with Arduino UNO R3 Mega 2560 1280 A057 : Electronics
Amazon.com: DEVMO W5100 Ethernet Network Shield LAN for Ar-duino Expansion Board Module with SD Card Slot Compatible with Ar-duino UNO MEGA2560 UNO R3 ATMega 328 MEGA 1280 : Electronics
Amazon.com: DEVMO W5100 Ethernet Network Shield LAN for Ar-duino Expansion Board Module with SD Card Slot Compatible with Ar-duino UNO MEGA2560 UNO R3 ATMega 328 MEGA 1280 : Electronics
Amazon.com: DEVMO W5100 Ethernet Network Shield LAN for Ar-duino Expansion Board Module with SD Card Slot Compatible with Ar-duino UNO MEGA2560 UNO R3 ATMega 328 MEGA 1280 : Electronics
UNO Shield Ethernet Shield W5100 R3 Development board