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Humanscale M8 Monitor Arm with Crossbar

  • Humanscale M8 Monitor Arm with Crossbar side view
  • Humanscale M8 Monitor Arm with Crossbar rear view
  • Humanscale M8 Monitor Arm with Crossbar mounting plate
  • Humanscale M8 Monitor Arm with Crossbar without monitors
  • Humanscale M8 Monitor Arm with Crossbar black color
23.00 LBS

Product Description

The Humanscale M8 Monitor Arm with Crossbar is designed specifically for dual monitor configurations. It is the same arm as the “standard” M8 Monitor Arm except for the addition of a crossbar so it can handle two monitors side by side. With this configuration, the M8 Arm is designed to handle two monitors up to 20 pounds each. With respect to monitor size, the M8 crossbar configuration can handle two monitors up to 24” diagonally each.

Humanscale M8 Monitor Arm with Crossbar - Options


  • Silver with Gray Trim
  • Polished Aluminum with White Trim


  • Clamp Mount - Clamps onto edge of desk
  • Bolt-Through Mount - Requires drilled hole through desk

Humanscale M8 Monitor Arm with Crossbar Specifications




Humanscale M8 Monitor Arm with Crossbar Features


Humanscale M8 Monitor Arm with Crossbar Features

  • Handles two monitors up to 20 pounds and 24” in diagonal length, each
  • Change monitor position horizontally, vertically, and diagonally
  • Change monitor position depth (closer to you or further away)
  • Change monitor angle independently (angled up, down, left or right)
  • 11.5” height adjustment range
  • 22” depth adjustment range
  • Integrated cable management hides messy cords
  • Interchangeable mounting options include either a clamp mount or bolt-thru mount
  • Includes 75mm and 100mm mounting VESA mounting plates
  • Compatible with Apple Monitors (Apple adapter required, available at Apple Store)


Installation Guide            M8 Arm Crossbar Conversion Tips



The Humanscale M8 Monitor Arm with Crossbar is ideal for people who work on multiple screens. Dual monitor configurations provide you with more screen area to increase productivity. For example - you may read from one screen as you type information from the first screen into a second screen. This eliminates having to toggle back and forth between different windows making your motions more efficient.

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Warranty Information

Product Warranty

• Ten year warranty

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Product Reviews

  1. Solid, with a few installation qualms... 4 Star Review

    Posted by on 11th Jan 2014

    This is my first dual monitor arm. With that said, installation was relatively easy. It took me about 20 minutes. I thought the instructions were a bit cheap as it was just a black copy of another piece of paper. The instructions were also for the M8 single arm. Anyway, I had another computer screen in the room and just came on this site and read off the pdf installation guide. For those that don't have another computer, just be prepared. Once I got the arm installed, I had to mess around with the weight balancing. I didn't anticipate this. I then found one ball bearing joint a bit looser than the other. I called Humanscale and they are shipping me a new one at no charge. It was good to see that kind of customer service. Overall, I'm happy with the arm. It's sturdy and it's nice to have two screens. I'm sure I'll like it even more once I get the ball bearing.

  2. Right Height 5 Star Review

    Posted by on 5th Dec 2013

    I have had an ergonomic monitor arm for about 3 years and it's been great. I saw a dual monitor arm on friends comp and really liked the additional desktop space it provided. I wasn't planning on spending this kind of $$ on a monitor arm, but after researching, I don't think there is a better dual arm on the market for me. My biggest complaint about my last monitor arm was that when I adjusting my desk to the standing position (top of monitor eye level), the monitor was about 1 inch below the recommended position. The result was that I had to slightly look down and over time, I felt strain in my neck. This arm is taller than most, looks good, sturdy and I don't have any complaints.