4 pin UART -> 6 pin UART

I had purchased a 4pin UART by mistake.

3dr radio 433mhz

how can i use this?
Should I buy new ?
Do I need a gender ?

There are only 4 pins needed for a UART connection. RX, TX, GND and VCC. 3DR radios have a 6 pin connector and micro-USB. The original ones are provided with a 6pin to 6pin cable and a micro-USB to USB-A cable. Both should be usable with the Navio.