Minipro+670+download+top -

The user might be confused or have a typo in the product name. Since "670" isn't a standard model in the MiniProg lineup, it's possible they meant MiniProg 3, which is an updated version. If that's the case, the top useful features would include support for a wide range of devices, ease of use with software (like CH341Prog), and possibly open-source firmware. Some models might also have an OLED screen for real-time feedback.