Open-source usb TRNG and US standards - Help choosing I came across the ChaosKey and I remember the time I came accros the entrypy key that was always out of stock. I would really want one to play with, I would like the best open source I can get for under 80 USD.

According to Wikipedia, ChaosKey is FIPS-140-2 and FST-01 (NeuG) is NIST SP800-22 certified.

Now, I must say I don't care about US standard as I'm sure they lower them to make sure everything is NSA friendly. I would rather trust EU standard or something but it's not the norm apparently.

ChaosKey have an output of 10Mbit/s while NeuG (promoted by the Free Software Foundation) have an output of 602 kbit/s.

Now one could say better output mean weaker random numbers, or one is older than the other. So I'm a little bit lost here.

There is also the OneRNG, which output at 350 kbit/s and the BitBabbler White at 2.5Mbit/s.

I'm lost guys, help please.

Sorry if this isn't the right SE to post this, a the time it looked right.
If you fish around in your pocket, you can probably find one that costs 0.25 USD.

All it takes to use one of these gizmos is a little patience, a bit of hand-eye coordination, and some confidence that there aren't any surveillance cameras watching you, which you need anyway because you just typed in your password under them to decrypt your laptop's disk.

Once you've warmed it up by flipping it 256 times—or 512 times, just to be on the paranoid side, in case the entropy is ever so slightly below 1 bit per flip—you can get gigabits per second by using the outcome as the seed for an AES-CTR or ChaCha stream.

(You could even drive the cost down to 0.01 USD if you have the extra dexterity, but when the 0.25 USD option will still leave room in your budget for three or four nice dinners including booze, I figure the extra trouble of flipping a penny instead of a quarter isn't worth the 0.24 USD.)