This is a HUB that has HDMI/VGA, GBe and a USB pass-through. Since all of these are driven connected via a USB3 cable, I was expecting choppy video and reduced bandwidth on ethernet and usb. I was wrong. I installed the StarTech drivers on the MacBook Air 2017 which took about a minute or so and required a reboot. I plugged in the HUB to laptop and connect my Panasonic TV to the HDMI port and ethernet cable plugged in from the network. I immediately played a high def movie from the network to the tv and watched the CPU utilization. The cpu did spike for a little bit then settled down (probably Bitdefender doing a scan of the file I double clicked on or a scan of the directory I was in). The picture was clear and not choppy even with expanded to fullscreen (1920x1080@60). I decided to do more testing - watch a movie, copy a file over the network and copy a file to stick drive on the USB pass-through. There was some hesitation I think I saw however this was an extreme test and I was watching up close and waiting for it. Honestly, I am going to say "no hesitation" because it was slight and Bitdefender might be the cause. I don't think the average person would have seen it if I wouldn't have told them to "wait and watch for it".I consider this a gem.Pros: Low/No CPU utilization, Multiple Resolutions, No Artifacting (as far as playing with it for a day) detected, All ports work at maximum speeds concurrentlyCons: NoneI have a 2-gen old MacBook Pro (15-inch, Early 2011, it's a quad core, still a very nice machine) which until I recieved the StarTech gizmo, I had forgot only had USB 2.0. I thought, oh no, this will never work. Then the StarTech site had no drivers and doesn't officially support Mac, double "oh no". But, I read in one of the other reviews the chipset mfr, Magic Control Corp, had Mac drivers. [The OSX System Report even says MCT USB Graphics Device]. I finally found http://www.mct.com.tw/index.php?_Page=product&mode=list&cid=21&_lang=E and downloaded the Mac driver for their model USB 3.0 HDMI Display Adapter.... downloaded, rebooted, VOILA! I now have two 24" 1080P HDMI displays! One on Thunderbolt/Mini DisplayPort and the 2nd off of USB. Sweeeet!The amazing thing is it seems to have enough bandwidth to work on the MBP's USB 2.0AND.... I didn't have to give up a USB by getting the USB passthru model... although I don't know how much bandwidth you get, maybe enough for a mouse or keyboard.NOTE: Any of these USB video devices use the CPU to generate the video signal (I'm pretty sure that's why they recommend a quad core). On the MBP it uses around 5-7% added CPU (in my semi-scientific test of plugging and unplugging it). I use the same device on my Surface Pro at work, I'll have to look at the Task Mgr to see if there's a difference between it and a Mac.G/FI love this little device. Although it doesn't come standard with drivers for Mac, the chipset it uses is the Magic Control Technology, Corp., chipset. So, as someone else posted, you have to go the MCT website (mct . com . tw) and download the drivers for the U3-A8500 display adapter. Although it indicates it is for HDMI, it IS the one you want if you plan to use this with your Mac. I have a 15" MacBook Pro (non-retina) and it took me all of 10 minutes to open the package, connect the cables, download the drivers, install them, and reboot. The downloaded .dmg filename will be "T2-Mac-Install-m-1228.dmg".So now I have 3 monitors total: the built-in display of the MacBook, a 27" HP 2710m, and a 21" HP 20wm.I'd have given it 5 stars, but seriously, how hard is it to supply this driver either in the packaging or on the Startech website. They even put an errata sheet in the top of the box telling you to go to their website and download the latest drivers! But don't bother, as of the date of this review (5/3/2014), it is not on the Startech website.Hope you found this review helpful.This review is for the USB32DVIEH model, so Amazon needs to update the Verified Purchase to show EXACTLY which model was purchased because NOT all these reviews are for the same product, so DO NOT BE FOOLED by the overall rating and check the model you want to buy...Well, I guess I did not pay careful attention to the Technical Specifications, because this adapter is not DisplayLink but I went for it because it has the USB 3.0 pass-through which allows me to daisy-chain a network adapter with USB 3.0 hub. Furthermore, I bought this without realizing that they do not mention any Mac OSX support, so I made the last minute decision to purchase a Mac Mini which made this purchase useless.Fortunately, after checking the Technical Specifications I found that the chip used is MCT Trigger 5 T5-302 so it turns out this product is a re-branded and modified MCT U3-A8500 which you can find on their website. This does in fact have Mac OSX drivers and I have it set up in a Dual Monitor configuration with OSX Mavericks on my Mac Mini although I will mention that there is some flicker with Flash.This seems to be more of a problem with Mavericks itself as the Intel drivers for USB 3.0 and HD 4000 are "out of date", so people need to put pressure on Apple to update their drivers to the latest Intel drivers since this works perfectly in Windows on my Boot Camp Windows 7 64-bit Mac Mini setup. Since this is a USB 3.0 connection I noticed that it and some other USB 3.0 devices sometimes "stutter" in Mavericks so this is a driver issue and sadly Apple does not allow you to update drivers independently without an official Mac update.So sadly this Startech product gets 3-stars unless they can convince MCT and Apple to update their driver support, but I am happy that it actually works...***UPDATE***Well, I am dropping this to 1 star, because I found that I had more problems with flickering and USB connections in Windows 8.1, so I have now removed it from my setup. I was able to make it work, but this is not reliable like DisplayLink and is a cheap knock-off so I got tired of troubleshooting and got a proper DisplayLink chipset.This is a great little tool. I didn't see many reviews on this item so found the details at the startech website.I was using a Windows Surface Pro with 2 monitors, which were both looking great with this little device!! One was plugged in with a mini displayport adapter directly into the tablet and the second was VGA into this device.Fab.This does the job nicely, had a few issues with initially connecting it up. On both my laptops I had to update the graphics drivers first before it would connect and work. I am using Windows 10, all aspects of the product work.If all you want is a picture on the screen then this is fine but as soon as motion is displayed is looses all stability. This was on a MBP retina.Comprato l'adattatore con risoluzione massima 1920x1200 pixel, uscita Hdmi, spina Usb 3.0 e porta Usb 3.0, per usare di nuovo un monitor esterno con il mio computer portatile DELL a cui si è rotta la porta Hdmi. Il dispositivo è facilissimo da installare: basta scaricare da Internet i driver più aggiornati dal sito del produttore, installarli e collegare il dispositivo al computer, il monitor al dispositivo. Ottima resa cromatica, nessun rallentamento del cursore né delle immagini a schermo (impiego di applicativi office in Windows, visione di film, non ho provato con i giochi). Il dispositivo supporta tutte le risoluzioni standard di Windows inferiori a 1920x1200 pixel. Ho attaccato al dispositivo il mio hub Usb 3.0, a cui sono collegati tastiera, mouse, scanner, memoria esterna Usb. Funziona tutto veramente molto bene.Consigliatissimo!C'è una recensione su Amazon riferita a questo articolo dove si afferma che l'apparecchio sia compatibile con MAC ma questo non è vero. Nonostante che, anche dal sito in Italiano della Startech, venga dichiarata la compatibilità con una chat avuta direttamente con la casa madre in Canada mi hanno affermato categoricamente che l'USB32HDEH è compatibile solo con sistemi WIN. Inoltre si sono scusati, e stanno provvedendo a correggere l'errore sul sito italiano.Startech in questo caso molto poco professionali.