Features: Brand new and high quality The AR9380 is a single-chip dual-band (2.4Ghz/5 GHz), 3-stream 11n solution with PCIe interface. It uses the groundbreaking Signal Sustain Technology 3 technology to increase rate ranges (RoR) performances. SST3is a set of advanced technology and features supported by 802.11n, including LDPC, TxBF. The end-result is a ~+100% rate out of ranges in the short ranges, ~+50% in the middle ranges and ~+25% in the long ranges. It allows laptops and other computing platforms to run longer on a single battery while providing more than 300 Mbps of throughputs when used in 3x3mode. Specifications: Material:Plastic Model: AR5BXB112 Transmission Speed: 450Mbps Interface: Mini PCI-E Full size Stream:3X3 Package Includes: 1x Wireless Card note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.