Hello,
I have 3 USB Gridseeds running and am just now getting in to the whole mining scene as an enthusiast. The units are said to consume around 7 watts each in Scrypt only mode. I have a standard wall plugin (see picture) that I am using right now to power these and splitting off of it 4 ways. Is this a safe (non-fire hazard) way to run these, or should I be hooking them up to an actual power supply? On a somewhat related note, I have a Corsair CX500M power supply that is sitting around - if I should and/or do use this, is there any idea how many I could run off of it? My understanding is that it is not as simple as taking 500 watts and dividing by 7 (500/7=~71) and allowing some extra breathing room, so at least 50 could power off of it? My understanding is that this is oversimplifying it too much and there is more to consider?
I have seen people say that they use a specific power supply for this or that unit that they own, and I have done some looking online for this, but I haven't found a good source that gives an idea to the lay person exactly how they should calculate how much power usage they can or should use. Any tips or recommendations to either paragraph are greatly appreciated. Thank you!
(below image is what I am currently using for the 3 Gridseeds)
https://i.imgur.com/65STrWz.jpg