APPLE AirPort Extreme Atheros AR5BXB112 AR9380 Dual-Band 802.11N PCI-E 450M
Single-chip,802.11n-certified WLAN client PCI-E client solution
Support for 3-stream 11n MIMO
Conserves power with 1x1 downshift using Dynamic MIMO Power Save Enables PHY rates of up to 450 Mbps
Features optional 11n elements to enhance rate-over-range including.
Low-density parity check(LDPC)encoding
Maximum likelihood demodulation(MLD)
Transmit beam forming(TXBF)
Maximal ratio combining(MRC)