Me thinks mexicowanderer is trolling "chinesium cr*p", and just pointing out that if you buy things on line, always apply a test of reasonableness.
The "fail" sign for me on this item is a 1/4" electrical post with ring terminals, and you're telling me it will take 200 amps? I think that's a typo, lets call it 20 amps.
Trust, but verify, always, with electrical items... electricity burns everyone, smart or dumb, if you don't use common sense and pay attention to the specifications. Go look inside at the electrical busses inside a 200 amp electrical main panel, and the size of the wires from your electricity provider feeding the main panel, and you'll see some big azz buss and screws... there's your sign.
We may be old f@rts in here, but some us still have great BS detector sensitivity... this is just a recalibration of our measurement devices.