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Humanscale M4 Extended Length, Top Mounted Bracket, Clamp or Bolt-through Mount

item#: HUS062

This model of the Humanscale M4 LCD monitor arm features a top mounted bracket with 11.5" of vertical adjust with easy, finger tip adjustment of the gas actuated arms and a maximum depth adjustment range of 25.4". This model is available with your choice of a two-piece low profile clamp mount or a bolt-through the work surface mount. Humanscale M4 Monitor Arms are suitable for monitors up to 20 lbs in weight.

Humanscale has discontinued this item.
The Humanscale M8 Monitor Arm is a great replacement.

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Color - Humanscale M4 Monitor Arm

Two color options are available.

M4 color options

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Mount - Humanscale M4 Monitor Arm

Two mount options are available for this extended monitor arm.


m7 bolt-through mount

Bolt Through (BT)

Secures your M7 post to your work surface via a bolt.

m4 Low profile two-piece clamp mount

Low profile two-piece clamp mount (LC)

Similar to the low-profile one piece but comes apart for "against the wall" applications where you can't slide a one piece mount into place.

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  • Details

This Humanscale M4 Monitor Arm model features a double link, extended reach arm mounted to the the top of a slim post and your choice of a bolt-through or a low profile clamp mount. The Humanscale M4 monitor arms are some of the most versatile and heavy duty monitor arms on the market and feature a reliable, modular design that provides for easy upgrading and a lifetime warranty to back it up. Unlike the Humanscale M7, the M4 links offer both vertical and horizontal adjustability, negating the need for additional height adjustment controls for most applications. The M4 is available with different mounts and options. Please see the Humanscale M4 Monitor Arm - Design Your Own page for the full menu of options.

The Humanscale M4 LCD Monitor Arm Features:

  • Two links that are easily adjusted vertically and horizontally
  • Clamp mount fits desks up to 2.5" thick
  • 25.4" total range of depth adjustment. Depth range is reduced by 2" when the arm is at it's very highest or lowest height.
  • 11.5" range of finger-tip height adjustment
  • Accommodates monitors weighing between 5 and 20 lbs.
  • 360° monitor rotation so monitor can be viewed in either portrait or landscape position
  • 60° range of lateral and vertical monitor tilt for additional viewing adjustability
  • Comes standard with both VESA 75mm and 100mm mounts. Special Viewsonic rectangular mounting place 200mm x 100mm is available. Apple monitor owners can order a MAC friendly mount directly from the Apple Store online. (click here for Cinema Display VESA mount adapter kit) (click here for 24" iMac Display VESA mount adapter kit)
  • Made from 80% recycled and 95% recyclable material.
  • 10-year warranty on gas cylinder. Lifetime warranty on all other components

Finish -

The Humanscale M4 arm is available in two different finishes. Black and Silver are both standard colors.

Humanscale M4 Color Options

Customer Reviews

Humanscale M4 Extended Length, Top Mounted Bracket, Clamp or Bolt-through Mount