C.P. CompanyC.P. Company PPC Belden 5-Port Cable Amplifier EVO1-5-U/U with Power Adapter

Where can I buy a replacement power adapter?

Where can i find a owners manual for c.p. company ppc belden 5-port cable amplifier evo1-5-u/u with power adapter

what size ground wire is recommended, has 14-8 awg on the ground lug in the picture. Is the ground wire necessary, it has surge protection built in

Does it come with the 110V-220V power adapter?