It is easy to get scammed by sellers peddling counterfeit RTL-SDR Blog V3 units. Please ensure that you are getting a Genuine RTL-SDR Blog V3 by checking the sellers account name. Our official account names are:
Amazon: RTL-SDR Blog
Aliexpress: RTLSDRBlog Store | Store No.4523039
99% of other sellers on marketplace websites like eBay and Aliexpress claiming to sell RTL-SDR Blog V3 units are selling fake units with poorer performance, and some are missing features like the HF mode and bias tee.