Details Product code RB931-2nD 10/100 Ethernet ports 3 Antenna gain 1.5 CPU QCA9533 CPU core count 1 CPU nominal frequency 650 MHz Dimensions 48 x 78 x 81mm License level 4 Max Power consumption 3.5W Number of chains 2 Operating System RouterOS Power Jack 1 Size of RAM 32 MB Storage size 16 MB Storage type FLASH Supported input voltage 5 V - 5 V Wireless chip model QCA9533 Wireless standards 802.11b/g/n