World’s smallest USB MU-MIMO Wi-Fi adaptor - Super-fast Wi-Fi in a nano-sized package that’s small enough to leave plugged in! Instant Wi-Fi upgrade for laptops - Enjoy 802.11ac Wi-Fi speeds. Perfect for streaming and gaming - Dual-band support gives you the 5GHz frequency band for smooth 4K UHD streaming and low latency gaming. Extreme 5th-generation Wi-Fi speed Super-fast Wi-Fi ever becomes more accessible via USB, going up to 867Mbps on the clear 5GHz band. Using 802.11ac wireless, faster connectivity and enjoyment come to all your devices.   Multi-user MIMO support MU-MIMO technology boosts connection speed when multiple compatible clients are online.   Travel-friendly design The USB-AC53 Nano is specially designed to be compact and durable to safely and securely stay plugged into a notebook PC even inside a slim carrying case.   Selectable dual-band 300Mbps/ 867Mbps bandwidth Dual-band operation suits mainstream and power users. The 2.4 GHz band is perfect for web browsing, email, and social networking, while the 5 GHz frequency enables smooth 4K streaming and online gaming for blazingly fast and lag-free home entertainment. Specification Interface: USB 3.0 Max Signal Rate: 867 Mbps Dual-Band: Yes Wireless Standards: IEEE 802.11 ac External Antenna: No Antenna Type: 2 x PIFA Frequency: 2.4GHz: 400Mbps 5GHz: 867Mbps Dimensions: 20 x 14 x 7 ~ mm (WxDxH) Security: \"64-bit WEP, 128-bit WEP, WPA2-PSK, WPA-PSK\" Advanced Functions: See Overview Package Contents: Support CD Warranty card Package Type: Retail Package Weight: 0.4000 kg Warranty: 3 Years