KEFEYA Laptop Screen Extender 14 Inch Portable Monitor for Laptop 13-17 Inch 1080P FHD IPS Laptop Monitor Extender with USB-C HDMI Port Plug and Play for Windows, Chrome, Mac, Switch, PS5

First, out of the box, it's a very easy setup IF you have a fully powered USB-C port on your laptop. Most newer ones do but be sure you have such a port (usually indicated by a small lightening symbol by it); if you don't, even though they send you USB-C to USB-A and USB-C to HDMI cables, they will NOT power the monitor enough. I imagine you'd have to buy the separate power adapter for the monitor they mention in the ad (NOT included) to make such a setup work. So be aware of that. I suppose perhaps they don't work just on my particular laptop, but I doubt that's the case. With the supplied USB-C to USB-C cable it works perfectly. Well, I won't say "perfectly" (and this is the reason I gave only 4 over all stars) because as you can see from the first picture, when compared to my native monitor, the colors are different. It doesn't matter what setting I use or adjust on the S1 monitor. I can never get it to be like the native monitor of my laptop (ROG STRIX). I suspect the reason for this is because one cannot utilize "HDR" on this monitor. Note the picture of the HDR setting. It's off by default and for good reason; if you turn it on, the screen goes dark and will not return until you turn HDR off. I suspect it can't be turned on because, maybe, you'd need the power adapter they mention to enable that feature. (the power from just the USB-C port, even a full powered one isn't enough). This is my suspicion but I can't confirm it as I don't have the power adapter they mention (I don't even know what it is to be honest, as it's rather vague their description of the "power adapter"). Regardless, HDR will not function on this monitor with just the equipment they provide. Now, with that said, it's a *perfectly fine* monitor for what I wanted, which was just a second monitor to turn my laptop into a mini-desktop setup. So I could play games on my laptop (in full screen) while sitting in my favorite chair and still have the ability to check email (or other websites) on the other screen. It's perfect for this, and really will be perfect for many situations that don't entail gaming. As you can see from the refresh rate tests attached, the refresh rate is approximately 50Hz (even though it says "calculating" the test never got to a state where it would be "finished" as in the test for my native monitor at 240Hz). But the test is accurate as it accurately reports the refresh rate for my native monitor. So, I'm quite confident it's accurate when testing this monitor. I can't tell you what website I went to test it, as my first review was rejected, I THINK because the screenshots had the testing website URL in it. So, I edited that out. Hopefully THIS review goes through. But you can search for any refresh test online it's quite easy and straightforward. The point is, that this is NOT a gaming monitor by any stretch of the imagination, but it's perfectly fine for non-gaming applications. The first picture of the entire setup is NOT edited in any way, that's how the color difference is. At first it was a little annoying (disappointing really) but I got used to it and really don't notice the difference anymore, but it is there in an objective sense. The colors don't seem as "rich" (i.e., they're washed out) on the S1 monitor compared to my laptop's own monitor. Again, not sure why but I suspect it's the HDR issue above. But again, really doesn't matter for doing stuff that's not gaming. As you can see, I don't use the kickstand that comes with it (on the back of the monitor). I'm not sure why it was built into the design it doesn't seem necessary. I was a bit concerned that the hinge may become worn and eventually not support the weight of the monitor but as I write this now it's well over a month since I've had this monitor and still the hinge/support system (without the kickstand) supports its weight perfectly fine without showing any signs of wear on the hinge. So again, not sure what the kickstand is for. I wouldn't worry about the weight of it in other words, it's more a question of whether or not you are expecting a decent refresh rate for gaming and/or if you don't have a USB-C connection. Don't buy this for gaming; don't buy it if you don't have a USB-C port. DO buy it though if you just want a mini-desktop (like me) and don't care too much about the (somewhat slight) color differences. You actually might not have a difference if you don't have a gaming laptop actually. As a side note, the weight of it is not too heavy to be supported by lighter laptops like an HP Elitebook, which I also have for work. Again, you don't need the kickstand even for a light laptop like that. It holds up fine on its own. I hope you found this review useful. Edit: A few days after posting this review, the seller reached out to me to try some color adjustments on the monitor, to see if that would work to get the S1 to be the same as my own laptop's monitor. While sadly they didn't work, it did make the difference less noticeable, (not pictured). For this reason (since they reached out to me) I'm revising my review to five stars. It was good customer service I'd say.

So I was kind of apprehensive about ordering it. It was really unclear whether or not it would work for my laptop. I noticed that the core designs are for all the ports being on the right side of the laptop. All of our laptops have everything on the left side. I was also worried about fitment how it clamps onto the screen of the laptop. But everything was just so seamless. It extends out and is spring loaded to ensure a secure fit. It also has a kickstand that kicks out to keep your screen from falling back. I don't know anything about sound quality as I don't use dual screen for sound. I use the laptop. It is definitely bright enough and I can see the extended display clearly. The directions were clear and concise making initial setup very easy. You need one USB cord to USB c to power the screen, then a usb-c to HDMI or USB c for display. The construction feels durable but only time will tell the more I'm going use I give. It seems like pretty solid construction and comes with a carrying case for the extendo display and extra cords. I'm excited because of the work I do I need two screens. I finally have something that's portable that I can take on the road. I'm excited.

Love it! I truly love what this does for your laptop! It looks great, the angle of adjustment, easy to connect as plug n play; it's a great addition and worth it. Sound is slightly muffled since it's just a screen but does just fine; chances are you're not buying this for sound. Connecting is simple with the usb-c and that's all. Brightness and color is easy to adjust, the screen is like a matte finish so it may appear different than your laptop screen but colors look great on it. My only quarrel is the rubber "claws" on the side. I work construction and out of my work truck every day and moving the laptop around, the weight of the screen leads to the screen falling off/coming unclamped. I just wish the rubber pieces were a little bigger so it would hold/grasp/clamp the main screen better. Again, it's not bad and for sitting stationary at a desk where you're not moving, this is perfect!

Exactly what I needed. Fits in a backpack. Plug & play. Easy to use.

Struggled a little with the connection, but after I figured that out, it works great.