Hi,
Here are some suggestions for you:
1. power up your PS4 before connecting cross hair to it. (please reboot your PS4 to prepare this)
2. Enable the following setting in your PS4.
Settings->Devices->Controllers->Communication Method->"Use USB cable"
It's for PS4 Slim or Pro controller.
3. upgrade your Cross Hair with our latest version V4.5.14, which can be downloaded from here:
http://www.reasnow.com/forum/index.php?topic=25.04.
Firstly, connect your gamepad with a new and qualified USB cable to USB PORT1 of Cross Hair,
and connect keyboard and mouse to USB PORT2-3 of Cross Hair,
then connect Cross Hair to PS4.
A breathing color means it's working well.
PS:
When connecting your gamepad to PS4 with your old USB cable,
that is only for charging, there is little communication in it.
so any cable will be ok.