CCTV Camera Power Supply comes in blacks and has Input: AC100-240V 50/60Hz Output: DC +12V/3.0Amp. It's used to power CCTV cameras for security surveillance.
This particular adapter is most suitable for powering of Digital Video Recorder; Reason is that it is only this type os adapter that can power DVR (Digital Video Recorder) fullyQuality with hard disk drive installed. it does not make the DVR to be hot as it supplies the necesary power needed to boot up the DVR.
The design and shape of the adapter may vary but the ratings and colour is the same and never changed.