

🚀 Triple your workspace, triple your impact.
The KYY Laptop Screen Extender X90D is a portable triple-monitor setup featuring two 15.6" 1080p FHD IPS displays housed in a sleek CNC aluminum alloy frame. It connects via a single USB Type-C cable for plug-and-play convenience, supports 360° rotation and 178° viewing angles, and is compatible across major OS platforms. Designed for professionals seeking to boost productivity by up to 300%, it offers customizable display modes and eye-care technology in a lightweight, travel-friendly form factor.




















| ASIN | B0DK6HJ1TB |
| Additional Features | Eye Care, It does not limit the use of the place- whether you need it at home, office, meetings, travel work, or outdoor data processing, you can easily master it., Lightweight, Portable, Provide an amazing experience for Professionals, Players, Stock traders and Programmers. |
| Aspect Ratio | 16:9 |
| Best Sellers Rank | #4,221 in Electronics ( See Top 100 in Electronics ) #179 in Computer Monitors |
| Brand | KYY |
| Brightness | 300 Candela |
| Built-In Media | 1 x 15.6" Portable Dual Monitor, 1 x 5V3A Power Adapter, 1 x USB Disk (with Display Driver), 1 x USB-C to USB-A Cable for Power Charging, 1 x USB-C to USB-C Cable with a USB-C to USB-A Converter Head for Video Connection |
| Color | Grey |
| Compatible Devices | Android Devices, ChromeOS Devices, Linus Devices, Windows Devices, macOS Devices |
| Connectivity Technology | USB Type-C 3.1 for video transfer(Type-C Full Function Port), USB Type-C port for power charging |
| Contrast Ratio | 1200 : 1 |
| Customer Reviews | 4.4 out of 5 stars 698 Reviews |
| Display Resolution Maximum | 1920 x 1080 Pixels |
| Display Technology | LCD |
| Display Type | LCD |
| Hardware Connectivity | USB 3.1 Type C |
| Has Color Screen | Yes |
| Image Contrast Ratio | 1200 : 1 |
| Item Dimensions D x W x H | 12"D x 17.3"W x 3.74"H |
| Item Height | 3.74 inches |
| Manufacturer | KYY |
| Model Name | X90D |
| Model Number | X90D |
| Mounting Type | Desk Mount |
| Native Resolution | 1920x1080 |
| Number of Component Outputs | 1 |
| Picture Quality Enhancement Technology | Eye Care, Color Enhancement |
| Refresh Rate | 60 Hz |
| Resolution | FHD 1080p |
| Response Time | 1 Milliseconds |
| Screen Finish | Matte |
| Screen Size | 15.6 Inches |
| Screen Surface Description | Matte |
| Specific Uses For Product | 360° closer foldable angle to close together each screens to stand out in group presentation, Features USB-C cable with USB-A comberter head, compatible with most laptops via Type-C/USB-A ports, Multiple Modes for Productivity & Efficiency (extend/mirror/portrait/single 2nd screen/pre mode) |
| Total Thunderbolt Ports | 1 |
| Total USB 3.0 Ports | 2 |
| Total Usb Ports | 2 |
| Viewing Angle | 178 Degrees |
| Voltage | 5 Volts |
| Warranty Description | KYY Portable Monitor provides 12 months warranty & 30-days return policy for no reason , any question pls feel free to contact our 24/7 professional after-sales customer service team. |
A**R
Great Price for a great product!
4 months now and Zero Issues, easy to set up, light weight very Compatible even with the phone, amazing picture quality for the cost and very functional. Easy to stow in a bag.
F**R
I was very pleasantly surprised. It actually works exactly as advertised.
I bought this for working with my higher end Samsung laptop, because my desktop machine has six monitors, so I'm definitely not going to get by with just one on my laptop. I have owned, for a very long time, a USB single cable monitor that, for what it is, is pretty good-- that is, it's very lightweight and portable, and it gets the video signal and power off of one (or two) USB connections. The problem with it though is that it is lower resolution and has a slower refresh rate. For my purposes at the time, using it in portrait mode for reference, it worked great. I was expecting a similar kind of experience here, but I was very wrong. This thing really is plug and play, provided your laptop provides adequate power over the USB-C, or you plug the monitor set into power separately. I believe there are drivers to install. Oh, yes! I'm glad I remembered this. The unit came with drivers on a USB drive but the USB drive they give you is actually very nice. It's metal and is both USB a and C and has a cover that flips around to either end, and that cover has a loop on it that is, thankfully, sized properly to go on to a keychain if you wanted to. Unfortunately, it's only 512 MB, yes, not gigabytes. The USB drive contains drivers for all of its compatible systems, including an APK for Android. I believe this is the same common driver set that you use with almost any USB monitor, including docking ports that have a video out. On my windows laptop, the monitors set up beautifully, though I was trying some funky things with providing power, and testing it through USB hubs and things like that, and my best advice is just not to get too adventurous with it. Plug it in, and if the monitors don't come on and stay on, then plug in their power source. On my system, somehow, and perhaps it's just dumb luck, I didn't even have to arrange the monitors within Windows, it just knew that these external monitors somehow were one on the left, and one on the right of the main display. Each of them is full HD. I didn't stress test them for refresh rates, but I think I read somewhere that the refresh rate is surprisingly high. That's not really an area I care about on something like this, because I really just want the footprint. The one slightly unpleasant surprise, if you can call it that, and really I don't know what I was expecting, but it's that this three panel thing, which is a display on either side, and then a structural panel in the middle that has a handle through it, really needs to sit on a flat surface, and it makes it a little janky if you want to use the laptop in an area other than at a table or desk. I know there are some solutions to this, like folding one of the monitors closed, and using the other freestanding in portrait mode. I think I was kind of hoping for something that actually attached to the laptop, so the whole thing felt like one unit. In any case, with the panels folded out, there is a stand on the back of the center panel that lets you tip the monitor set back to a pretty good angle that you would typically use a laptop at. I wouldn't say the panels are of the very highest quality, but for a very thin, USB only display, I will say the difference is not so noticeable as to be distracting, and that is comparing it to a Samsung Book 3 Pro which has a high-end Samsung display in it. You can see a clear color difference between the native monitor and the external panels, but that is due to the eye saver turning the display to a warmer color, but the effect is much more subtle on the externals.
F**B
Total Game-Changer for Work and Travel!
I’ve been using the KYY 15.6” laptop screen extender for a few months now, and I honestly don’t know how I worked without it. If you need extra screens for productivity, travel, or even gaming—this is a solid pick. What I love: • Easy plug-and-play setup — Just connect with a single USB-C cable and it’s ready to go. No complicated installations. • Great picture quality — The 1080p Full HD display is sharp, bright, and looks fantastic from different angles. • Slim and lightweight — Perfect for tossing in a laptop bag. It folds up neatly and doesn’t take up much space. • Sturdy built-in stand — Makes it easy to adjust the viewing angle wherever you’re working. • Versatile — Works with laptops, phones, gaming consoles—pretty much anything with the right port. For the price, this screen is an amazing value. Whether you’re working from home, traveling, or just need more screen space, the KYY extender makes multitasking way easier. Highly recommend it for students, remote workers, or anyone on the go!
P**B
If your on the fence, jump. its a good setup.
1 month later, a lot of usage while traveling and at hotel, loooong layovers at the airport. Works as I expected. it is really cool to have the extra two monitors. Pros: Good resolution, great screen size, good brightness. Have had no issues. Easy to carry in my backpack with my windows surface pro. The only con... it seems a little of an odd fit when closed. There is room for the monitors to flop around. Wish it was a more secure tight fit. But overall a great setup to add to your travels.
J**Y
Excellent product, probably best affordable option
This is an excellent product, I did quite a bit of shopping around to find one that both had high ratings and only required one USBC input from the computer and this is the one I picked. I'm happy to say I chose correctly, it is indeed a very nice product. It has one USB that goes into the laptop and another USB for extra power that goes directly to a wall plug or some other USB power input, So one USB-C for power input and a separate USB-C for video input. One thing I somehow didn't expect is that it doesn't actually attach to the laptop It's more like a stand that sort of props up on its own and you just kind of put your laptop in the gap between the two screens but it doesn't really have to touch it, per se. If there are any downsides it would be this one thing, that basically it has to sit at certain angles both in terms of how inward towards you it's pointed as well as how far back it's leaning on the main support element, because if those things aren't in balance it can sort of fall towards you. However, that is not really a problem because the angles at which those things work are precisely the angles at which one would typically be sitting in relation to the screens. Additional pluses are that the way it folds protects the screens when it is in transit and also it has a kind of handle gap that allows you to carry it more easily and reduce the likelihood of drops. Ultimately, for a product category for which there are not a ton of great options as far as I could tell from doing the shopping around that I did, I am fairly confident that I got the best affordable option for this product and I would encourage you if you want this kind of screen extender for your laptop to get this one.
E**H
Perfect for virtual teaching
Last year I started teaching online and I got by with my laptop screen and a monitor, but it wasn’t the perfect set up. I felt like the monitor was wasting space on what really is a rather large desktop. I didn’t always need it, but it was always there. I also had to split my screen in order to keep my teaching platform on one side and my lesson plan on the other. I used my second screen for the slideshow I used regularly. I really wanted a third screen to make teaching easier, but I couldn’t imagine wasting even more desk space by adding a second monitor to the system. When I traveled this summer and was forced to use my iPad as a second screen (uggh), my brother told me about laptop screen extenders. This sounded like the perfect solution for my problem, so I watched a bunch of YouTube reviews and this one kept coming up as one that is reliable and easy-to-use. It was a big expense, but if it made my daily life easier, it was worth it. It was so easy to set up on my own. I am not tech savvy, so I assumed I’d need my husband’s help, but the directions were clear and easy to follow. When I teach, I can keep my video platform on my main screen, my lesson plans on the left and slideshow on the right. Additionally, if I want to use my desk for a crafting project, I can easily fold everything up and have 62” of free space to work with. Lastly, because I can adjust the screens to go back 90°, I can mirror my screen so my son can see without having to sit right on top of me. It solved an issue I didn’t even know I had until I realized my son could work on one side of the desk while I worked on the other. Lastly, we are considering taking a 6-month cross-country road schooling trip, and because this extender is so lightweight (relatively) and can be folded down and put away, it will be a perfect solution to let me work on the road. TLDR; I love it. It has solved all my problems, even those I didn’t realize I had. It’s portable, easy to use, and functions beautifully. 10/10 would buy again!
E**P
Nice extra monitors, especially for travel.
I really like this setup a lot. I work in tech and having more than just a laptop screen is important. 3 screens makes my life easier, and this dual monitor portable extender is perfect for just that. I just had to spend 2 weeks at a remote location and I used this along with my laptop, Macbook Pro 2018, 13". Setup was very easy, I used the included USB storage stick (which has both usb-c & usb-a ends) to add the drivers to my Macbook Pro, very simple to do, then I plugged in the monitors, 1 single cable, and viola the extra screens lit right up. I had no trouble setting it up the way I liked and I was able to work as though I was home with my larger screens. This is something I have been wanting for a long time, and now I have it. The whole thing fits in my laptop bag with my laptop, perfect! Travel is much easier now that I can bring extra screens with me very easily, that is huge and I travel a fair bit for work as well as personal travel. I highly recommend this setup if you need screens for travel, or just extra screens at home that can be setup anywhere quickly. Worth the investment
C**E
Great So Far
Updated Received another set of monitors and so far they are working well. Easy setup, just plug in and go. These are great for travel. Folds away so it’s compact and fits right in a laptop bag or backpack. Worked one time! First use was awesome. Plugged in to use a 2nd time and both monitors failed to work. Rotated between green, red and blue screens and after multiple attempts neither would connect. Tried to troubleshoot with no success. Had to return…disappointed!
Trustpilot
1 day ago
3 weeks ago