USB32HD4K

I am using this for a few years now on Linux Ubuntu and Windows. Works like a charm. With Linux you need to install the driver properly after that plug and play. Really good product.

Stunning bit of kit. I have a 40" Samsung 4k TV that I wanted to use as a 4K monitor. My current laptop could only go to 1920x1200 so rather than replace the laptop with a new laptop with a video card that can do 4K I decide to take a punt on this device. I connected this device this evening to a spare USB 3 slot on my laptop, driver was installed automatically, then connected a HDMI cable from this device to my 4K TV. Set input source to PC and voila, now using my laptop with a 4K 40" monitor. Default resolution 3840x2160 set automatically. I'm using 100% scaling and the real estate is massive. No noticeable input lag at all. I'm not using this for gaming obviously, just as a desktop to do development work on. I'm using the Samsung ue40mu6400 TV as a 40K monitor and works a dream in 4k using this external video card, the TV supports 4:4:4 chroma which is essential to use as a desktop, save £££s over a dedicated 4K monitor which have rip off prices. Highly recommended.

First things first - does this product work? - yes. Next question, is it as easy as it says it is? - sort of. It is plug and play (used under Windows 10 and 11) - but the only thing it doesn't really tell you is that when you are using it for the first time - step 1 is to plug in the device without the HDMI lead connected. Step 2 is to wait around 5 minutes. Windows will get the device to work by itself, but it takes it a few minutes to sort itself out. I tried the device straightaway on two different laptops and it didn't work. I was going to send it back but then it started working on one of my laptops. Therefore, I then tried it with my other laptop and after waiting a few minutes - windows picks it up. If you want, you can go into "device manager" in Windows. When you first plug in the device it will show it as an error under "Universal Serial Bus Controllers" - however after a few minutes, this will disappear as Windows will have sorted out the drivers for it - you can then use it.

Sadly it does only 30Hz on 4K, but for browsing and watching Youtube is fine. I even manage to play few FPS on it, and although performance was not brilliant, I was impressed that it worked at all. Where it really shines is RTS. In general, great item, and does the job. I'm not sure if 30Hz is down to this item not being HDMI2.0 or my TV, but it works just fine.

Update: after a quick exchange with StarTech, audio is working, so 5 stars it is! I got this to be able to use my older laptop (2 years or so, still has USB3) with the new 4K TV I'm now using as my desktop monitor (to replace 3 24" LCD monitors). I already had a DisplayLink HD adaptor, so I knew they were OK. This 4K one also just worked for me, from a graphical point of view. I had to set my Samsung TV into "PC mode" to get some picture improvements (4:4:4 Chroma is what you want), but now it's nice and sharp. I was a bit concerned after reading other reviews about a 30Hz desktop, but for me at least, it's completely usable, including watching video on youtube. I don't get any audio though which is kind of a pain. It seems to support it - I get a DisplayLink Audio device as a selectable option - but I don't actually get any output. The TV side is fine, because the other attached PC is sending sound just fine. The controls for the device are a bit limited (a little right-click menu thingy in the systray) so there's not much to tweak, either. It'd be a 5-star device if I could get audio working, because it's saving me from either buying a new laptop, or dealing with multi-monitor hassle.

I got this for a HP Envy 13 laptop which is a couple of years old and doesn't support dual 4K screens - via a docking station I was able to get 1 4K screen and one HDMI screen. With this device I can get two 4K screens at 4K resolution with a 3rd HDMI resolution screen on the laptop itself - brilliant. Refresh rate is limited to 30Hz but for work use that's fine. I haven't tested it for gaming but that refresh rate will be a limitation so best to avoid if that's your requirement. Otherwise excellent!

I needed to connect a second external display to the M1 MacBook Pro and found this as an advised solution in a forum. As a long time Mac user, I am always a bit concerned if the offered Windows solution really works for Mac as well, but after downloading and installing the software driver, it immediately worked. Both HDMI screens are connected to the same USB-C hub. One to the HDMI port, the other one with the Startech adapter to an USB port of the hub. Works perfectly.

Terrible! Made my Sony TV flicker, loads of screen anomalies(flashing pixels), very sluggish and slow. Completely avoid this if you're intending to use it for any multimedia playback it's ridiculously laggy! I was trying to use this on an HP Elitebook, high spec, i7 cpu, loads of RAM, USB 3 etc but it was useless. Unless you're using it to view static photos or work on files and it doesn't make your screen flicker or produce faults, it's pretty much pointless for anything else. I used the same cable and connection from my PC to the same TV and it worked fine, that was outputting via a GTX1070 - i know they're leagues apart, but this should be able to product a steady screen without any faults and should manage basic video playback. I thought it was a big ask for 4k output and too good to be true and this was! Complete waste of time!

Den gör att du kan koppla in 2 bildskärmar till din dator. Denna kopplas till en USB-anslutning. Fungerar utmärkt. Det sitter ett grafikkort i dosan som gör det möjligt.

I have tried numerous HDMI adaptors to try and extend my laptop desk top to a third monitor. My 2012 MacBook Pro is certainly on its last legs, but there are too many "duds" out there that claim their HDMI adaptors work with Mac computers... try so many I became a non-believer. Alas! StarTech comes to the rescue with a quality unit which is super easy to install and worked immediately! Please note, this adaptor will not work on OSX software older than El Captain... luckily, that's what I upgraded old faithful to! All you need to do is plug in the adaptor, launch the Mac driver from the supplied installation CD, restart your Mac, then plug in the additional monitor and voila, you're all set. My setup consists of an ancient MacBook Pro running El Captain, one LG 32ML600 32" monitor connected via Thunderbolt to HDMI adaptor and now another LG 32ML600 32" monitor connected via StarTech's AMAZING USB to HDMI adaptor. For regular office use (which is what I bought this for), this does the trick! However, if you are streaming video or playing video games, this may not be the best solution. Picture-wise, the output is OUTSTANDING! I highly recommend this item to extend your desktop. It works with my fossil of a MacBook Pro, it will work for you too. It's worth the money... super happy with this purchase!

これはよい商品だ。ただ発熱が気になる

After reading all the mixed reviews, I was a little hesitant to buy it but am so glad I did. I have a 8 year old Dell XPS8400 with an intel I7 processor, a very nice rig in its day but stuck with PCI-@ 2 video cards. I hated to buy a new computer as this one is still perfectly good and super fast with an added SSD. But I needed to drive both a 30" dell 3400 X 2400 monitor and a new 4K monitor. No way the old video card was up to it, limited to 1900x 1200 dpi on the 4K monitor. So this was the only real choice it seems. Downloaded the drivers, installed with no issues and plugged in the 4K monitor and instant success. It is a flawless picture and even does HD videos pretty darn well, better than expected. The mouse is a bit laggy so have to move it more deliberately but nothing terrible. I did a before and after processor load test and on a dedicated USB3.0 plug, it definitely pulls about 10-15% more load then before; spiking up to about 35% with full video. But hardly overloading it unless you may be running several CPU programs at once. For just internet use it is perfect. But if you use it on a I3 or similar lower power processor, I can see how it may bog down more. On a well running I5 or I7 computer with minimal multiprocessing, it works like a champ. I can guess that reviewer having stuttering and other issues may be overloading the processor, which would definitely cause lots of issues. The adapter gets warm to the touch, so keeping it in a well ventilated area will certainly extend the life. Overall I am quite pleased with it and a good compromise until I have to upgrade my whole system.

Easy to use. Does what it says. No problems so far. Thank you