Onvian Wireless Motorcycle Bike Anti-Theft Alarm with Remote, USB Rechargeable Vibration Sensor Bicycle Security Alarm, 113dB Loud

These cost me about 2 hours of my time. For each hour of troubleshooting I deducted a star. I was finally able to troubleshoot it down to 2 of the USB 3.0 cables were bad. It took me 3 days to get new cables. I am using it for mining so I lost about $2 per day per card of mining potential and 2 hours of my time. The 2 additional USB 3.0 cables cost me about $10 on Amazon. So in total to buy these cost me Original price $66.99 + tax + $10 for new cables + $12 lost mining profits + what you value 2 hours of troubleshooting at 1AM in the morning. The culprits are attached in the photo.Edit: Onvian contacted me and offered to send out another 6 pack of riser cables. I haven't tested all 6 yet but 2 of them have been working for a few days now. I got lucky in my first order to have 2 bad cables. Looks like the second batch is more reliable.Edit: finally hooked up all the risers and it of this batch only one cable was bad. Great customer service. They say they are upgrading to a higher quality cable going forward.

Great quality product and great customer service, however, I had to take off a star not just because of the 1 bad USB cable, but because another reviewer said he too had 2 bad USB cables (July 2017) and that the company was going fix the quality issue moving forward (it is now April 2018). That was nearly 9 months ago, so no excuse for not fixing the quality control of those cables.However, I contacted them and got an immediate response along with another riser pack within 1 week -- so there's that! Also, all the riser boards / 1x connectors are of excellent quality so can't fault them there. Overall I would still definitely recommend buying them, just beware that if you have any issues, it's likely a USB cable and not the board itself.

The rubber pad on the bottom is a nuisance. It needs to be a bit more removable or optional, If you're mounting them in a typical mining rig using standoffs to mount them to you have to peel off the rubber pad, around the screw holes anyway.

Had a few of these Version 7's be completely junk and unable to display any video cards on them. Put some version 6C's in and everything worked perfect.Working with the Onvian team to resolve the defective card issues.

Stopped working after a week of mining.Keep getting BSOD/CRASHES/RESTARTS every time I try to mine now.Have done diagnostics and it all boiled down to these risers.

I've wasted my time buying other PCI-E extenders only to be dissatisfied with their quality. One of them was so flimsy that it could bend with zero to no effort. This product does what it advertises and that's what I like to see. The only downfall (if you could call it a downfall) is that the protective cover on the back is extremely hard to take off (at least in my case). Not sure if that is a downfall because it means that they had great protection on the way over to my house.

I tried other, cheaper sets by Wish.com and most of them didn't work. The quality of these was WAY better and every one worked properly. Spend a couple of more $ here and you will be glad you did!!!

no problems at all. 6/6 working well. pads on bottom stay on fairly well.