Features: The ENC28J60 Ethernet Module utilizes the new Microchip ENC28J60 Stand-Alone Ethernet Controller IC featuring a host of features to handle most network protocol requirements. This Ethernet LAN module connects directly to most microcontrollers. Specifications: Ethernet LAN Module for Arduino/AVR/LPC/STM3 ENC28J60 Ethernet chip Can be easily mounted with the MCU Network Interface: HR911105A Supply Voltage: 3.3 V 25Mhz crystal oscillator Size (L x W x H): 58 x 34 x 17 mm ( 2 9/32 x 1 11/32 x 21/32 in ) Package Included: 1x Module