Mikrotik How To

R52nM dual band miniPCI card (300mW 2.4Ghz & 5Ghz)  Support in 802.11a/b/g/n with MMCX connectors gift you excellent perfomance for your wireless backbone.
Dual band IEEE 802.11a/b/g/n standard
• Output Power of up to 23dBm
• Support for up to 2x2 MIMO with spatial multiplexing
• Four times the throughput of 802.11a/g
• Atheros AR9220, chipset
• High Performance (up to 300Mbps physical data rates and 200Mbps of actual user throughput) with Low Power Consumption
• Two MMCX antenna connectors
• Modulations:
OFDM: BPSK, QPSK, 16 QAM, 64QAM
DSSS: DBPSK, DQPSK, CCK
• Operating temperatures: -50ºC to 60ºC
• Power consumption MAX 1.95W
• ESD protection +/- 12kV

http://www.balticnetworks.com/mikrotik-r52nm-802-11a-b-g-n-300mw-minipci-card-with-(mmcx-.connectors.html).