I think you will find that tablo should be 2 amp. 1 amp is probably below the voltage power required to power a USB 2.0 device.
But you can search the forum and find info on power supplies.
I understand what you are saying. I have 2 of the 2-tuner Table units. Both have the original power supplies made by Adapter Tech. Interestingly enough, one has a 2 amp power supply, the other has a 1 amp power supply, but both have worked flawlessly for a couple of years or more. I do have a small USB cooling fan that blows on both units continuously, maybe that helps.
I also want to mention that the replacement power supply sold by Amazon specifically to replace the original, made by T-power, is 1.0 amp also.
I didn’t know that Nuvyyo had an approved power supply that you could buy on Amazon.
Makes you kind of wonder why Nuvyyo got into the business of selling a replacement power supply and isn’t it 2 amp.
Have a link to the “approved” Amazon one? Would like to put it on my wish list for future reference. Thanks!
That just answered my question. 
I was thinking the only approved version was from Tablo directly.
so what is the power rating for the power supply directly from Tablo?
Since I bought one from Nuvyyo, as a backup, when they were first announced, I would say the plug is labeled as: output 12V 2A.
Damn, you triggered my impluse buy mode, and now a spare power adapter is on its way.
Ugh.
Do not post any puppy pictures, please!
WARNING Not compatible with AIBO
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No UPS on my system. No telling why it failed.
I have multiple units with the original power supplies from the 2014 time frame.
But I purposely purchased 2 tuner models two keep the heat down and the unit more stable. But I’ve always been concerned about the plug being slammed into a power strip close to a bunch of other plugs (warts) that are possible running hotter then you might think.
@TabloEngineering’s got a mighty cute new pup. I’m sure he’d oblige you with a pic if you ask nicely 
I know that was really a request… glad to oblige!
This is Ruby, 5 month old yellow lab. She is a food processing machine!
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I wonder if the 1A power adapter is the one that eventually dies requiring a replacement.
Something for @TabloTV to investigate.
Interesting.
I can confirm the Adapter Tech replacement power adapter purchased directly from Tablo outputs 12V at 2A.
That’s weird.
I already indicted above that the tablo replacement power supply I received, which Nuvyyo states works with both older units as well as the newer dual, was 12V 2A.
I am wondering why replace a psu with the same psu. My psu from 2013 died after almost exactly 5yrs I have a 4 tuner tablo. The psu was 12v 2amps. I have never had a psu die before, so I figured 2amps was too close to the needs of the system to allow the psu to run efficiently. I bought a 12v 5amp Chanzon (x001guapb3). It was $15 with Prime 2day shipping. The tablo/hd system should have all the power it needs at an efficient usage percentage.
Obviously, same or more amps is the recipe. There might be some safety concerns with allowing the higher amperage draw, but don’t think there is any “device police” waiting to nab ya.