USB to HDMI Adapter

First of all the important bit.. yes it works when I connected USB3.0<>HDMi and also USB3.0<>HDMItoDVIadapter<>DVI. The picture resolution is full HD and perfect quality. I have actually got 3x monitors so 2 of them are on the card (Dsub, DVI) and this third monitor is on USB3.0. Everything was working fine and I was thinking about leaving a 5 star review because there are very few products of this class which actually works... But... here comes the but... I have connected it to my Desktop/Server system where I do lot of work including work on virtual machines so I do not turn off my PC for weeks even months because I don't want to waste time spinning up all VMs and opening all docs and browser pages etc. I normally send it to sleep before going to bed or the PC automatically goes to sleep/hibernate after 2 hours or so... after the installation of this adapter I went away for few hours and when I came back all my monitors were blank and PC was on. No matter what I tried the PC didn't come to life until I did a hard reboot and it all came back with a clean slate. So all work was gone! I then tried to manually hibernate it from start>shutdown>sleep and it went well, all monitors went to sleep but within 2 mins PC restarted! I tried different combination of cables, even shutdown power saving for USB port but it will restart every time if I put it in sleep mode (manually) or it will just hang if system goes to sleep after set duration. As soon as I removed the box the sleep functionality started working as normal. So, for some very odd reason, this box does not work for SLEEP/HIBERNATE mode. If you are a person like myself who does not want to turn off his PC then just consider above issue otherwise the device is fine.= = =I have had a detailed discussion about this issue with Benfei customer services and they have been very helpful in determining the issue and sending me another product to test. The new item they sent did work well with no issues at all (on Windows 10) so I think the previous item may have some issues which was causing the problem. Based on their response and excellent customer services I am elevating the rating from 3 to 5.

Worked as advertised, arrived without delay. Unfortunately I was unaware that my usb port was usb 2.0 and while it did work, the resolution could not be changed to match the 1st monitor. No fault of the product, my fault

Okay so my review will be a little long. But will be well worth the read if you wish to know about the amazing service I received from the company, and about the product itself.So for a little backstory, I wanted to add a second monitor to my laptop for work but only had one HDMI (that extends the display, not duplicates it). I ended up getting this product and it worked perfectly the first time. However when I unplugged it to fix up some cables it no longer worked. My laptop could recognise that a device was plugged in but no information was going through.I emailed Benfei support explaining what had happened, what troubleshooting I did, and some screenshots. I received a email back from them explaining that the adapter was most likely defective. They went on to say that they would send a replacement free of charge, I didn't even have to go through the trouble of sending back the defective one!They asked for my order details and provided an estimated time of delivery. It ended up coming a day earlier and worked perfectly.Overall while at the beginning it was a little annoying. The amazing customer service made up for it 10 times over. I would heavily recommend this device and the company as a whole. Its honestly refreshing to see a company go so much out of their way to fix the issue.

Really wasn't sure it would work but it did and was very simple setup.My son's HDMI port port broke on his laptop this is a lifesaverASUS Windows 10 laptop.

Update: Still no contact from Benfei but noticed other reviewers talking about a driver download. My package didn't come with a disk or instructions, so I hadn't realised. I went on the Benfei website and it turns out the driver is not compatable with Chromebooks. With Chromebooks increasing in popularity, they really ought to make that explicitly clear in the description.Original review: I tried this adapter on three different laptops (2 chromebooks and 1 Windows laptop) and none of them would recognise the external monitor that it was connecting to. I then bought a different product which worked immediately, so this adapter is clearly faulty. Sadly, I bought it in advance of a birthday and by the time I tested it, I was 1 day past the 30 day return window - my fault for being too organised. Amazon will not help with a refund and the Benfei weblink which Amazon points me to doesn't work. I've left feedback with the seller so I'll see if they respond and accept a return - if they do, I'll update this review.

I've seen this to work and to not work on different motherboards. Not sure if it's a MOBO issue or a USB issue or this device; I've never really fully investigated it. I'm hanging on to it though, as it was cheap and it might get me out of a spot some day...

What can one say? It works.

Works fine once the driver is installed. Shame it's not picked up by windows and didn't need a random proprietary driver to work.