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FLEXISPOT Standing Desk Converter 40" Large Desk Riser, Spacious Desktop Riser Sit Stand Computer Workstation with Wide Keyboard Tray, Ergonomic Height Adjustable Stand Up Desk Converter, Black

Based on 66 reviews
Condition: New
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$139.99
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Availability: In Stock.
Fulfilled by FlexiSpot

Arrives Nov 18 – Nov 22
Order within 2 hours and 47 minutes

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At a glance

Condition
New
Color
Black
Size
40"
Model
M57
Weight
34.6 lb
Material
Metal, Wood
Finish Type
Polished
In the box
Keyboard Tray

Features 5

  • Quick Setup Ready to Use in Minutes: Designed for convenience, this sit stand desk riser comes almost fully assembled. Simply attach the keyboard tray to your desktop workstation is ready to gono complicated tools or installation required. Perfect for busy professionals and home office setups.
  • Patented Spring Lift System: Featuring a patented mechanical spring system, delivers smooth and stable height adjustment. Built with high-quality steel spring wire for long-lasting performance, it avoids common gas spring issues like air leakage or performance drop over timeensuring reliable daily use for your sit stand workstation.
  • Ergonomic for Healthy Work: Upgrade your workspace with this desk riser designed for ergonomic comfort. Easily switch between sitting and standing to reduce fatigue from long hours of work. The keyboard tray keeps your arms at a natural angle, helping relieve neck and shoulder strainideal for home office, remote work, and daily computer use.
  • Heavy-Duty Structure with Enhanced Stability: Built with a reinforced steel frame and thickened square tubes, this converter offers superior stability at any height. The top surface supports up to 33 lbs, while the keyboard tray holds 4.4 lbs, making it ideal for monitors, laptops, and office accessories without wobbling.

Specs 15

Color Black
Material Metal, Wood
Brand FLEXISPOT
Item Weight 34.6 pounds
Finish Type Polished
Brand Name FLEXISPOT
Unit Count 1 Count
Manufacturer FLEXISPOT

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 18 – Nov 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Great Lifting Desk!
Color: Black Size: 32"
Big enough to two screen OR one base with two screens and keyboard. Sturdy, and strong; but very space efficient. Still have plenty of desk space to have room to work without feeling cluttered. It’s heavy duty, but not too terribly heavy itself. Great quality and came in great condition. No damages or marks. Assembly was pretty quick. Took all of 10 minutes. It works great when it’s raised, I’m 5’6” and I love the height. ... show more
Reviewed in the United States on June 28, 2026 by Cassi B.

So convenient
Color: Black Size: 36"
Great product! So nice to be able to turn my everyday desk into a standing workspace. It is a game changer. Easy to set up and I love the height adjustability.
Reviewed in the United States on July 8, 2026 by MLP

Easy set up and minimal assemby
Color: Black Size: 36"
Heavy duty and great quality
Reviewed in the United States on July 8, 2026 by Hansopher

Good buy
Color: Rustic Brown Size: 42"
It is very easy to assemble. It looks great on my office desk. So far, it appears to be well made. It serves my needs perfectly. I would purchase another one.
Reviewed in the United States on July 19, 2026 by jeremy

Comfortable
Color: Black Size: 42"
I’m very happy with this standing desk converter. It’s sturdy, easy to adjust, and provides plenty of space for my monitors, laptop, and accessories. Switching between sitting and standing is smooth, making my workday much more comfortable. The build quality feels excellent, and it has helped improve my posture. I highly recommend it to anyone looking to create a more ergonomic workspace. Thanks ... show more
Reviewed in the United States on July 13, 2026 by Lenin

Easy to put together, but came with scratch
Color: Black Size: 40"
Came in today. Very easy to put together. Pretty heavy duty and the exact dimensions I needed for my home setup, however, when I opened the package, there was a large scratch on the top where the monitors sit. Also I’m kinda disappointed that it doesn’t seem easy to lift but I’m hoping it’s just me and it’s easier tomorrow. I will say it does go down smoothly and very easy. Very disappointed about the scratch, but hopefully I can repair it. I don’t want to deal with the hassle of returning, I need it for work. Overall, seems like it’s going to work for my needs. ... show more
Reviewed in the United States on July 8, 2026 by Angelique

Surprisingly solid and smooth—great upgrade for my desk
Color: Black Size: 36"
I wasn't expecting to like this as much as I do, but it's been a really practical upgrade. The lift is super smooth and doesn't jerk or feel flimsy when going up or down. Once it's set, it stays very stable—even with my monitor and a laptop on it, there's no wobble while typing. Setup was also easier than I thought. The instructions were clear, and I had it ready to go in under 5 minutes without needing extra tools. I like that the surface is spacious enough to hold all my daily work gear without feeling cramped. Overall, it just makes switching between sitting and standing effortless. Definitely feels like something I'll be using every day—worth it. ... show more
Reviewed in the United States on May 6, 2026 by Rochester

Great purchase
Color: Black Size: 32"
The item went above and beyond my expectations. Set up was easy and took no time. Very sturdy would highly recommend.
Reviewed in the United States on July 22, 2026 by Amazon Customer
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