Does the power on/off switch on a computer actually turn off the power supply or is a small current still running? - Quora
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Amazon.com: Gonine 12V Security CCTV Camera Power Supply with 8-Way Power Splitter Cable, 110-240V AC to DC 12 Volt 5A 60W Adapter for Lorex, Samsung, Q-See, Night Owl, Swann and Annke Cameras. :
![Power Supply 101: Understanding Power Supplies and Selecting the Right One for the Job | Tom's Hardware Forum Power Supply 101: Understanding Power Supplies and Selecting the Right One for the Job | Tom's Hardware Forum](https://forums.tomshardware.com/proxy.php?image=http%3A%2F%2Fi.imgur.com%2FPLmITp2.jpg&hash=41ea6a4680e7e4a67595662951b9db94)