DVR is Duhua clone, 12X is Nellys Duhua clone, 3X is Duhua with adt firmware, the 24volt psu is from A Duhua PTZ that i use to power the Bosch. I never set this up, the 12X was from Nellys sold with cable cut no damage though, DVR was new only used for few hours to test cams with Araknis was new...