It's great that everything on moddiy.com has a 5 star rating. This is totally normal and not suspicious at all. I bought moddiy.com/products/USB-3 from them b/c my motherboard vendor charges $30 shipping for an envelope with the solution to the problem they created.
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It's working well and hasn't yet started an electrical fire or turned into a USB HID device to exfiltrate data. That might only happen when you try to leave a rating lower than 5 stars, but so far it's living up to their suspiciously high ratings. Fits right under the GPU nicely.