The DM-5R CPS can be found here:
https://www.radioddity.com/2016-bao...plus-dual-band-dmr-digital-radio-2000mah.html
I use the same cable for my UV-5R and DM-5R.
If this is the radio that you are interested in, here's my $.02:
If you have any need for transmitting, don't buy this radio.
If you are only interested in receiving, there are things that you need to be aware of:
It will recieve VHF and UHF DMR.
Dual watch does not work when one of the channels is DMR.
Some of the radios (mine included) have an annoying squelch problem, whereas, every twenty seconds or so, the squelch breaks open, as though you are pressing the MONI button. This shuts off the scanning feature.
The radio, at this time, cannot be programmed using CHIRP.
Hope this helps,
Rich