















🚀 Triple your screens, triple your hustle!
The Synnov S3 Laptop Screen Extender is a 14-inch Full HD portable monitor designed to triple your laptop’s display area, boosting work efficiency by 300%. Compatible with a wide range of devices and operating systems, it features vivid IPS visuals, plug-and-play USB-C/HDMI connectivity, built-in speakers, and a foldable design with a carrying bag—perfect for remote work, travel, and multitasking pros.



















| ASIN | B0DCFPXJ5D |
| Additional Features | Blue Light Filter, Built-In Speakers, Portable |
| Aspect Ratio | 16:9 |
| Best Sellers Rank | #51,527 in Electronics ( See Top 100 in Electronics ) #1,244 in Computer Monitors |
| Brand | Synnov |
| Brightness | 300 nits lm |
| Built-In Media | Custom Portable Carrying Bag*1, Laptop Screen Extender*1, USB-A to USB-C Cable*2, USB-C to USB-C Cable*2 & HDMI Cable*1, User Manual*1 & Product Box*1 |
| Color | Black |
| Color Gamut | 100 |
| Compatible Devices | Desktop, Gaming Console, Laptop, MAC OS, Windows, Android, Chrome, Dex, Switch, PS4/5, Smartphone |
| Connectivity Technology | HDMI, USB Type A, USB Type C |
| Contrast Ratio | 1000:1 |
| Customer Reviews | 4.1 4.1 out of 5 stars (472) |
| Display Resolution Maximum | 1920 x 1080 Pixels |
| Display Technology | IPS |
| Display Type | LCD |
| Hardware Connectivity | USB Type C |
| Has Color Screen | Yes |
| Item Dimensions D x W x H | 13.85"D x 8.5"W x 1.44"H |
| Item Weight | 4.5 Pounds |
| Manufacturer | Synnov |
| Model Name | S3 |
| Model Number | S3 |
| Mounting Type | Desk Mount |
| Native Resolution | 1920x1080 |
| Number of Component Outputs | 4 |
| Picture Quality Enhancement Technology | HDR |
| Pixel Pitch | 0.18 |
| Processor Count | 1 |
| Refresh Rate | 60 Hz |
| Resolution | FHD 1080p |
| Response Time | 2 Milliseconds |
| Screen Finish | Matte |
| Screen Size | 14 Inches |
| Series Number | 2310121 |
| Shape | Flat |
| Specific Uses For Product | Business, Desktop, Entertainment |
| Total Number of HDMI Ports | 2 |
| Total USB 3.0 Ports | 4 |
| Total Usb Ports | 4 |
| Unit Count | 3.0 Count |
| Viewing Angle | 180 Degrees |
| Voltage | 20 Volts |
| Warranty Description | 12 months |
| Warranty Type | 1 Year Manufacturer Warranty |
M**W
Good quality dual screen laptop extender
I have been using this quality dual screen laptop extender for almost 4 months and so far it has served me very good. I have been using this with my lenovo laptop and it is as easy as plug and play with my windows laptop. I am using this extender with 14 inch laptop but it can be used with 16 I ch laptop as well. It does comes with 2 sets of usb a,usb c and hdmi cable and a carrying case for convenience. I am using the screen with 2 usb c cable and connection is instant all the time. It can also be used horizontal vertical depending on use case. I have used it horizontally only. Screen images are very sharp and very bright. It also comes with in built speaker and sound is not that loud but it does serves the purpose. Dual screen just fits fine on my laptop screen. So far I am very happy with the product. Price was just right for my intended use.
A**R
Excellent product and great customer service from manufacturer!
I am extremely happy with these screen extenders. These have been a game changer for me working at home. My husband accidentally threw away the box with the extra cords, not realizing that I needed the hdmi/usb cables when I was charging my laptop. I wrote the manufacturer to see if I could purchase replacement cords. They wrote me back within one day and offered to send me the HDMI, which is designed specifically for the screens... free of charge! They apologized that the usb-a to usb-c cable is not a proprietary cable and was not in stock, but easy for me to order on my own. I am super happy with the customer service of this company but even more pleased with the performance and ease of using these screens!
N**O
Best Value For Price
Made this purchase on a whim, not expecting much. Wasn't expecting anything good, just some cheap Chinese product that would break in a week. Well let me tell you I was completely wrong. This screen extender has been a game changer in terms of my productivity for work and school. Combined with my Asus Zenbook Duo, I'm able to have 4 entire screens, greatly increasing the efficiency of my work and allow me to transition seamlessly between tabs without any issues. The product feels decently made, with a lot of metal, and very little plastic components. The screen quality is decent and is relatively responsive for the price. In addition to the screen itself, it also comes with a carrying case, useful for transporting this around. Not to mention the carrying case is sleek and is not some ugly brown bad or anything. I would 100% recommend this product to anyone in the market for something like this. 5 Stars!
F**T
A good option
I've been using these screen extenders for a few months now. The set-up is very easy and the image quality looks good. All the necessary cables are included. There are a few things that could be better. The screens aren't too bright when using them during the day and in lots of sunlight. That is regardless of using the HDMI or USB-C option. Also due to the weight of the screens the support it provides does not allow you to set them at my desired height. They will either slide down or fold the laptop screen. Nonetheless, they get the job done and make multitasking with a laptop so much easier.
M**N
I'm in love
I bought these for my home office to use for my side business and professional work. i did have to buy an extra USB port attachment (thank you same day delivery) and set up is smooth. Once I got it set up, I was a very happy working man with his three screens. I didn't even realize it came with speakers built in!! The fact you can quickly change the brightness and angles of the other screens makes it a purchase I'm very happy with. Fit great on my work (Lenovo) laptop, just count your ports, I forgot to account for my port that I use to power it.
I**E
It's portable but not really travel friendly
I ordered these this weekend after seeing a coworker use them last week. I loved how it extended her monitors and connected to her laptop as opposed to using an external travel monitor. I didn't even think to ask her about the weight of them. When I went to pick up the box from the location, I was shocked how heavy they are! I have travel monitors and expected them to be similar weight, nope! They were just under 5lbs and quite bulky. I did open the box and connect them to my laptop. It fit my 14" travel laptop great (which I had picked due to the lightness of it). I read the instructions and tried to figure out which of the 5 cords that were included, needed to be used and in what configuration, I luckily have two c ports on both side of my laptop so that worked great and they quickly were powered up. The only thing is, I ONLY have 2 c ports on my laptop and one of them is needed for my power supply, so it's have a monitor or have power. The picture quality was good and I felt that they were built well. They felt very sturdy and the carrying case provided some decent protection for it. I did not use any audio for it, I had told my laptop to use the internal speakers. I think if you've got extra ports and not actually traveling with them, it's a great solution. But as someone that's on planes and going thru TSA and lifting my bag up to put in an overhead, it was going to be way too much for myself and so I am returning it. Not to mention, I'd have to get an adapter for the power supply issue.
M**M
Very helpful
Easy to attach and wire up. Screens work flawlessly and allow for multiple pages to be loaded at one time.
N**.
Screens are very heavy. My laptop only has one USBC port which is a problem, as this is also my power port. If you use the HDMI port you need power to the screen One power to a screen doesn't power the other so you need to have another contraption to power both screens "and" get them connected to the laptop. Was all very complicated and cumbersome - I gave the screens to someone else who seems to have more patience and is enjoying them.
H**E
Sehr cooles Teil... Ermöglicht mir, mein Laptop noch viel effektiver zu nutzen. Schnelle Einrichtung und ab geht's. Absolut empfehlenswert.
L**S
Brilliant item plug and play easy set up
V**N
Un peu lourd, fonctionne du tonnerre
B**N
Tolles Produkt zu fairen Preis!
Trustpilot
3 days ago
2 months ago