[5-90% RH] We had an issue with an old adapter for a 3rd monitor Setup after a recent Windows Update. After we could never get it to work consistently and 2 different Staff setups. After installation of the StarTech Slim USB 3.0 to HDMI External Video Card Multi Monitor Adapter we have had no more issues. Works Great! You should purchase and purchase from B&H Photo!! No one is better than
B&H!!!!

[≤ 2.5 W] I tried to use the same company's MiniDisplay port to Dual HDMI adaptor to extend my desktop (MacBook 2016) but it didn't work. It only mirrored the desktop on my two monitors. So I bought one of these for one monitor and used a MiniDisplay Port to HDMI adaptor for the other monitor and it solved my problem. So this is a good device if you want to extend your desktop over two monitors.

[≤ 2.5 W] Works as great, as you would expect. I have 2 -- they coexist just fine. For Mac, don't forget to load drivers first.

[≤ 2.5 W] I've been using this adaptor for almost 2 years. I'm running 2 Samsung curved screens in addition to my Macbook Pro screen. It's perfect. Every time I update the OS I typically have to download new drivers, but StarTech keeps them up to date so I've been very happy.

[≤ 2.5 W] Works great, I have 3 and no issues for months. Hope they work for years.

[5-90% RH] This StarTech Slim USB to HDMI External Video Card multi Monitor Adapter works perfect to connect two monitors to a laptop. The B and H representative recommended it after reviewing my older laptop through photos I emailed to him. So appreciative of the kind assistance and expertise I was provided.

[Yes] We needed to extend our monitor to allow for three screens. This worked perfectly thanks to the online support that guided us in the right direction.

[0.3 lb] I had a USB 2.0 that lagged video. I watch netflix with this and totally forgot it is coming through a USB cable!

[5-90% RH] I struggled to get my 2nd monitor working and this adapter just helped get that working on my M1 Mac.

Make sure you install the driver to get it working.

[0.3 lb] I can game on mine, no lag as a 3rd monitor to do surround in World of Tanks (WoT). I have a Lenovo Y510P with 2 GeForce 750m cards, and the laptop has 1 HDMI and 1 VGA port, both go to my Samsung T27B350 TV/Monitors running at 1080p@60. I have a Desktop that I actually run 6 of those Samsung monitors with 2 video cards. Since I choose to rebuild my Desktop, I have been using my laptop in the meanwhile. I wanted to use 3 monitors so I could game with peripheral vision, since World of Tanks supports 120' FOV. While my center and right monitors are handled by the laptop video ports, I was short 1 port to do 3 displays. I initially used a KWorld USB2-2-DVI, and that even worked, but there was noticeable lag. Since I only use about 1/3 of the side monitor, this was possible. If I tried to use the entire screen, this might have been bad, but for my purposes and this game, it was acceptable. Since I saw they released USB3-2-DVI, I figure it could only be faster. they were right, now using 1/3 of my left side monitor, and there is almost no lag, I would have to be looking for it to even notice. It works perfect, so this will work in place of the Matrox TripleHead2Go I was looking at. I will try to see how it handles full screen, but for a partial screen, WoT in 1080p is fine. Hope this helps out someone who is trying to decide if this will work, I think if you wanted to watch full screen videos at 1080p@60 this would handle that no problem at all. David