Mikrotik R11e-2HPnD 2Ghz miniPCI-express, 802.11b/g/n dual chain, 1000mW, 2xMMCX Specifications: Chipset: AR9580 Frequency range: 2192-2732 MHz Standards: 802.11b/g/n Max output power: 1000mW Format: miniPCIe Dimensions: 51x30x13mm Connectors: 2x MMCX Features: 9 LED indicators, ESD protection Linux Wireless ath9k