The ENC28J60 Ethernet Module uses the Microchip ENC28J60 Stand-Alone Ethernet Controller IC featuring a host of features to handle most of the network protocol requirements.
This module respects the IEEE 802.3 standard, is compatible with 10/100/1000 Base-T networks and it supports full and half duplex modes. It contains an integrated MAC and a 10 Base-T PHY.
Crystal oscillator: 25MHZ. Power supply pin: 3.3 V
Genuine Microchip's ENC28J60 SPI ethernet controller and HR911105A RJ45 socket.
Works with all Arduino boards, including UNO, MEGA, and Nano.