Features:

Using a Realtek 8811au chipset provides a maximum transfer rate of 600Mbps.
Complies with IEEE802.11a/b/g/n/ac standards.
Operates on either 2.4GHz or 5GHz band, transmission rate can be changed automatically.
Delivers ultimate performance up to 433Mbps over 5GHz with AC technology.
Reduces interference for better wireless transmission.
USB2.0 Hi-speed connector promise high effective wireless connect. 
Can bed used for computer, media player or other device which needs the flexibility of a wireless connection.
It can be configured as an AP during installation, allowing you to share the internet connection to other Wi-Fi device. 
Descriptions:

Applicable system: Windows Vista/XP/2000/7/8/10

Chipset: Realtek 8811au

Max throughput: 600Mbps
Aerial: SMA 2dBi aerial
Interface: USB2.0 Hi-Speed connector
Frequency Range: 2.4GHz/5.8Ghz
Operating Temperature: 0° to 40°
Storage Temperature: -40° to 70°
Operating Humidity: 10% ~ 90% (Non Condensing)
Storage Humidity: 5% ~ 95% (Non Condensing) 
Wireless Signal Rates with Automatic Fallback: 
802.11n: up to 150Mbps+433Mbps(Dynamic)
802.11g: up to 54Mbps(Dynamic)
802.11b: up to 11Mbps(Dynamic)
Specifications:
Material: metal, plastic
Size of PCBA: 6.1*2.4cm
Package size: 18.7*10cm 
Color: black
Package included:
1 x Wireless Dual Band USB adapter 
1 x CD driver
1 x Aerial 

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3.Delivery time depends on destination and other factors;

USA : 8-12  days.   

Russia: 8-22 days. 

EU Countries: 8-15 days.  

Other Countries:8-45days.