I was happy at first. I need to build a lot of rigs, so I got a lot of these. The first two boxes were great, and then it all went to crap, I opened a box and I could not get it to work on any cards. It turned out that all 6 were bad, and then put the other 6 from the same box in, and 1 worked, the rest were bad, but not after spending 8 hours testing everything else. Sent some to a customer, they were testing every riser first. They have 80 out of 120 bad. I started getting boxes with just 2-3 good ones and the rest bad. I still have 15 boxes that are not opened, I am tempted just to not even bother testing any more and return these bad things.....

For my risers of the Ubit brand I have had about 50% be bad....when I get other brands that number drops to 2-4%......

Solid quality product. About as plug and play as you can get.

Most riser sets come with 1-2 "bad" components. I've purchased 2 sets of these for 2 mining rig builds and have yet to come across a single bad riser.

I bought a bunch of different risers. These are a little different in that the rubber base is a bit thicker than others. They also have a little LED in front that nicely indicates it's getting power. They also included some nice good quality tie wraps with the order. I had one riser board that one capacitor came off. I sent them a picture and they sent out a replacement right away. Very responsive customer service wanting happiness and they got it from me.

After doing some research on risers for my first rig, I read a lot of Amazon reviews. It seemed it was fairly common to have about half the risers not work out of the box. So, I decided to go with Ubit's 12-pack for my 9 GPU rig. That way, at least I'd have a few extras just in case.

I was a bit concerned because after I had ordered, I read that you should avoid powering risers using SATA connectors from your power supply. Something to do with overloading the rail and a potential fire hazard. I haven't noticed any issues with this myself. When I touch the connections and cables I don't feel any heat, so it seems fine. As a precaution, I only connect 2 risers into each power supply cable instead of the max of 4. I was kicking myself for not getting the risers that have three options to power them: SATA, Molex, and 6-pin PCIe. But now that my rig is up and running and works flawlessly, I don't regret anything.

I've got to say, everything worked *perfectly* out of the box. All 9 GPUs are now connected and fully functional, not a single bad riser. The risers were super easy to install and connections were a breeze. The manufacturing quality seems to be top notch. Even the packaging is great, each riser comes in its own resealable anti-static bag. Even the box came with a little note that said to contact their customer support should I have any issues and they would address them. It's clear this company cares about its products and values its customers, which is a rare sight with Chinese manufacturers.

Not to mention these are cheaper than ordering two 6-packs, which right now might set you back about $100 from other vendors. I can't recommend these enough. Save yourself some headaches and frustration, buy these risers!

We have purchased around 50 of these risers, and most of them have worked perfectly. We had one set where around 50% didn't work, but the seller replaced them right away with no fuss. They work very well and have 6 pin power connectors on them so you can power them right from the 6 pin PCI-e connectors on your power supply if you have enough. I have used these risers with several models of Asus and Gigabyte motherboards and with several different brands of RX 560, RX 570, RX 580, GTX 1050 ti and GTX 1060 graphics cards. They have all worked well. Also, these are compatible with the The PCI-E Riser Extender for Bitcoin\Litecoin\ ETH coin ect Ubit 4 in 1 PCI-E Riser Adapter Board USB3.0 PCI-E Rabbet- Ethereum Mining ETH (4 in 1) so you can put additional graphics cards on one motherboard.