What is The DV4mini?
It contains a powerful 32-bit micro controller as well as a complete 70cm transceiver and modulator/demodulator for GMSK and 4FSK (including raised cosine) as well as a USB interface.
It does not require its own power supply as it is powered through the USB interface.
Thanks to a power saving voltage transformer even older USB interfaces will suffice.Uses a comprehensive but simple to use software package which allows for the linking with DCS reflectors for both D-Star and DMR reflectors.
But remember on DMR that this will not get you into the DMR Marc network, it will only get you into the DMR+ "Hytera" network for now.