Each LISTING is FOR a PAIR of GENUINE RTL-SDR Blog V3 USB SDR (Software Defined Radio) dongles. These are the dongles only, what you see in the photo is what you get.

These are used, but have been tested by me to verify they are in working condition.

These are GENUINE RTL-SDR v3 dongles that I have purchased direct from Carl (owner of RTL-SDR Blog at rtl-sdr.com). I have included a photo of the antenna connector end of the dongles, if you check Carl’s website it shows that fake dongles usually have different screws on the antenna end. See Carl’s website at https://www.rtl-sdr.com/rtl-sdr-quick-start-guide/

In later production runs of the RTL-SDR Blog v3 dongles the dongles were black, these solver dongles are from earlier production runs of the genuine v3 dongles.

Features of these dongles include (information from RTL-SDR.com):

• Frequency range 24 - 1766MHz and 500kHz - 28.8MHz HF using direct sampling
• 8 bit resolution ADC
• Ability to receive all signals from up to a 2.56MHz frequency range at once, some reports claim that they can sample 3.2MHz at once (but that may not be reliable/stable)
• Better than 1ppm TCXO stability
• 4.5b USB powered Bias Tee - the dongle cal send 4.5DC up the antenna cable to power devices such as amplifiers
• Multiple improvements compared to other RTL-SDRs

As part of my after-sales service I'm happy to answer any questions you have and help you choose & install the software you need to accomplish whatever you want to do with these. :) I've used these with Windows & Linux (incl Raspberry Pi) and I've used many different SDR programs, so am happy to help you out.

I recommend reading Carl's website at rtl-sdr.com as it is, in my opinion, the best SDR website on the Internet. His about page gives a great introduction to these dongles and lists some of the ways you can use them: https://www.rtl-sdr.com/about-rtl-sdr/