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Specifications

Features RB951Ui-2HnD (USB, power injector, USB, 2GHz, 802.11n, dual chain)
CPU Atheros AR9344 600MHz CPU
Memory 128MB DDR2 onboard memory
Ethernet Five independent 10/100 Ethernet ports
LEDs Power, NAND activity, 5 Ethernet LEDs, wireless activity LED
Power in PoE: 8-30V DC on Ether1 (Non 802.3af). Jack: 8-30V DC
Power out PoE passive on port 5, same voltage as input.
Dimensions 113x138x29mm
Weight Without packaging and PSU: 232g, full weight in package: 420g
Operating System MikroTik RouterOS, Level4 license
Power consumption Up to 7W
Operating Temp -20C .. +50C
Package contains RouterBOARD in a plastic case, 24V 0.8A power adapter
Antennas 2×2 MIMO PIF antennas, max gain 2.5dBi
RX sensitivity 802.11g: -96dBm @ 6Mbit/s to -80dBm @ 54Mbit/s 802.11n: -96dBm @ MCS0 to -78dBm @ MCS7
TX power 802.11g: 30dBm @ 6Mbps to 25dBm @ 54 Mbps 802.11n: 30dBm @ MCS0 to 23dBm @ MCS7
Modulations OFDM: BPSK, QPSK, 16 QAM, 64QAM; DSSS: DBPSK, DQPSK, CCK