CG Antenna SB-2000 Operating Manual page 13

SB-2000 MK2 USB RADIO INTERFACE
CG Antenna Co., Ltd.
Check COM port configuration
In the Control Panel -> System -> Hardware -> Device Manager
You will see 2 new ports be added. Write down the port number. You need it for your software setting.
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UPDATE: 8 DEC 2016 http://www.cgantenna.com