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Description
MSI MAG401QR 40" Class UW-QHD Gaming LCD Monitor - 21:9Experience immersive victory with the MSI MAG401QR, a 40 inch class ultrawide gaming LCD that blends expansive visuals with blistering speed. This monitor is built for competitive play and cinematic immersion alike, offering a native UW QHD resolution of 3440x1440 on a responsive IPS panel. The result is a display that draws you into your favorite titles with crisp detail, vibrant color, and generous real estate for multitasking. With a 155Hz refresh
Experience immersive victory with the MSI MAG401QR, a 40-inch class ultrawide gaming LCD that blends expansive visuals with blistering speed. This monitor is built for competitive play and cinematic immersion alike, offering a native UW-QHD resolution of 3440x1440 on a responsive IPS panel. The result is a display that draws you into your favorite titles with crisp detail, vibrant color, and generous real estate for multitasking. With a 155Hz refresh rate and a 1ms response time, the MAG401QR minimizes motion blur and ghosting, helping you stay precise in fast-paced moments from head-to-head shooters to high-octane racing titles. The ultrawide 21:9 format expands your field of view, enabling tactical awareness and a more immersive storytelling experience, whether you’re in competitive tournaments, grinding through campaigns, or streaming your session to friends. In addition to performance, this monitor is designed to deliver comfortable, long-lasting viewing—so you can stay focused during extended gaming sessions or late-night marathons. The MAG401QR is more than a display; it’s a cornerstone of a modern battlestation that enhances your gameplay, productivity, and entertainment with its bold presence and dependable performance.
- 40-inch IPS panel with UWQHD (3440x1440) resolution delivers expansive, cinematic visuals and razor-sharp detail from edge to edge, making it easier to spot enemies, track targets, and read on-screen information in all kinds of games and tasks.
- Ultra-wide 21:9 aspect ratio expands your field of view for a more immersive gaming experience and gives you extra screen real estate for multitasking, so you can keep chats, maps, and streams within reach without compromising gameplay content.
- Blazing 155Hz refresh rate paired with a 1ms response time reduces motion blur and ghosting, ensuring smooth, responsive control during rapid action sequences and competitive matches where every fraction of a second counts.
- IPS technology provides vibrant color accuracy, consistent brightness, and wide viewing angles, so your image stays true and readable whether you sit front-and-center or move around your desk with teammates watching.
- Optimized for competitive play and long sessions, offering a compelling blend of immersive visuals, fast performance, and reliable comfort to help you perform at your best across genres—from shooters to strategy games and beyond.
Technical Details of MSI MAG401QR
- Display Size: 40 inches
- Panel Type: IPS
- Resolution: UWQHD 3440x1440
- Refresh Rate: 155 Hz
- Response Time: 1 ms
- Aspect Ratio: 21:9
how to install MSI MAG401QR
- Unbox the monitor and place it on a stable, level surface near your PC, ensuring there is ample space for cable routing and ventilation.
- Connect the monitor to your computer using a DisplayPort or HDMI cable, then plug in the power cord and switch on the power supply.
- Power on the monitor and use the on-screen display (OSD) to adjust basic settings such as brightness, contrast, color temperature, and a preferred picture mode to suit your environment and content.
- Configure your computer’s display settings to use the native UWQHD resolution of 3440x1440 and set the refresh rate to 155Hz if your GPU and connection support it for the smoothest experience.
- Run a quick color calibration and test motion performance in your most-played titles, then install or update graphics drivers to ensure optimal compatibility and feature support.
Frequently asked questions
- What is the screen size and aspect ratio of the MSI MAG401QR? It is a 40-inch ultrawide display with a 21:9 aspect ratio, designed to deliver an expansive field of view for immersive gaming and productivity.
- What resolution does the monitor support? The MAG401QR uses UWQHD resolution at 3440x1440, providing sharp details and broad horizontal workspace for multitasking and competitive play.
- What is the refresh rate and response time? It features a 155Hz refresh rate with a 1ms response time, which helps reduce motion blur and enhances responsiveness in fast-moving games.
- Is this monitor suitable for both gaming and productivity? Yes. The ultrawide format offers immersive gaming and ample screen real estate for tasks like coding, video editing, or monitoring multiple applications simultaneously.
- What panel technology does it use and how does that affect viewing? The monitor uses an IPS panel, known for accurate color reproduction and wide viewing angles, enabling consistent colors across a wide seating range.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Great New Addition To The Nylabone Line - Perfect for Hard Core Chewers!
Flavor Name: Peanut Butter, Size: Large
We've been using and depending on Nylabone for decades. For more than 50 years these toys have been designed with the dog in mind - and to appeal to their natural instinct to chew and interact. Of course there are the occasional flops but they're few and far between.
We have two Old English Bulldogs, a soon to be nine year old and soon to be two year old. I think out of what stands now at close to 600 reviews half have to be dedicated to dog toys and canine care products. After all, they are indeed family in every sense of the word and we indulge them with a constant parade of new toys.
These new Marrow Barbell bones have been a huge hit.
Both our boys have the jaw power to rip a the door off a Hummer and then proceed to shred the steel. Plush and soft toys are our of the question as those adorable little bunnies and chipmunks, even the ones promoted to hardcore chewers end up looking like road kill in the blur of an eye.
The Barbell design is incredibly heavy and thick - believe me you don't want this one dropped on your foot. Elvis our youngest can do a significant amount of damage in one long term chew session, however after hours of relentless chomping the bone looks unscathed.
Some nice touches are:
* Very Thick casting of the Dura Chew material ( the strongest material made by Nylabone)
* Textured nubs on the outside are superb for cleaning off tarter and keeping your best friends pearly whites and gums in great shape.
* YThe Barbell design makes it easy for yor dog to carry around, providing of course he or she can lift it!
So many fly by night companies cater to "aggressive chewers" and more than often we and our Bullies end up not only destroyed in record time - but can pose a choking hazard and other potentially serious problems. I've had dogs my entire life, over 50 years and I've learned that "Virtually Indestructible' is code for - if lasts an hour you're in luck.
Some exceptions to the rule are Kong for hard core chewers, Planet orbee and of course Nylabone. We used Elk horn for a while until it fractured one of our dogs teeth, not good. Antler of any kind is far too hard a substance and fractured teeth can and do go un-noticed and can lead to infection and blood poisoning.
On a brighter note, the Nylabone Dura Chew has enough give to prevent this - and great lasting power. We have tons of different shapes in the Dura Chew material including the Soupers, rings, Turkey legs and so on. They all hold up and the dogs adore them. Please note, these particular toys are for large breeds with powerful jaws and made especially for the tough, show no mercy, serial killer chewers - canine clients.
And if that my fellow dog lovers fits your pooch you can't go wrong with the Barbell peanut butter Chew Toy.
5 Paws Up!
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Reviewed in the United States on December 26, 2013
★★★★★ 5
Chew me
Flavor Name: Peanut Butter, Size: Large
This thing is tough and lasts. I mean look it’s meant to be chewed and eventually replaced so they don’t last forever but you get what you pay for and with this the quality and cost align it’s a solid chew bone for any dog
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Reviewed in the United States on February 6, 2026
★★★★★ 5
Great product
Flavor Name: Peanut Butter, Size: Large
My dog loves this toy.
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Reviewed in the United States on March 7, 2026
★★★★★ 4
This is gonna be long, so bear with me.
Flavor Name: Peanut Butter, Size: Large
First of all, I didn't receive the pictured item. I got the "Large" sized barbell chew, and the one pictured is the "mega monster" chew.
This review is for the "mega monster" chew which is what's pictured. I have an 80 pound, 1-year-old lab, and this has actually helped her calm her chewing anxieties. She's become less destructive, and a lot more calmer. She even listens now that her hyper-ness has dwindled down.
The chew I got was the one with the golden retriever- which is the large size. It's the exact same thing and the size I'm reviewing (the one that's pictured with the lab). The one with the 'golden retiever' is recommended for sizes 25-50 pounds. The one I needed (the one that is pictured) is for dogs 50 pounds and up, so it's perfect for my lab. (Are you with me still?)
Anyway, I didn't wanna go through the 'returning and waiting for my new product' process, and I didn't wanna risk getting the same wrong product again. So I just took it to my local pet store and exchanged it for what I wanted in the first place when I ordered this, and paid the difference, which was like 3 bucks.
SO, overall this the quality of this item is amazing! My lab is a strong chewer, and she's entertained herself with this product for long periods of time leaving barely a dent in it. I highly recommend it!
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Reviewed in the United States on February 20, 2015
★★★★★ 5
DIEGO LOVES THIS CHEW TOY
Flavor Name: Peanut Butter, Size: Large
NYLABONE DURA CHEW BARBELL - PEANUT BUTTER FLAVOR
Diego is soon to be two years old and loves to play with his toys and chew on NYLABONEs. NYLABONE is the ONLY bone we will let him have.
NYLABONE brand is long lasting. This BARBELL bone has plenty of little nubs for him to clean his teeth on. He loves to carry it around and play with it also. This particular NYLABONE is made for the extreme chewer and that would be little Diego.
NYLABONE products are veterinarian recommended. They are made in the USA. They are high quality. These NYLABONE products keep him happy, entertain him, and help keep his teeth clean. There no toxins involved the manufacture of NYLABONE products. Dogs naturally want to chew, so let yours chew -- on NYLABONE.
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Reviewed in the United States on March 27, 2019