M/Flex for M8 Pro Single Monitor Arm

The world’s best-selling monitor arm. Moves with you to provide effortless adjustment and commercial-grade performance.

Design Features

  • Supports healthier posture

    Supports healthier posture

    Helps position your screen at the right height and distance to reduce neck and shoulder strain.
  • Smart Stop rotation control

    Smart Stop rotation control

    Limits arm rotation to help protect walls and nearby equipment.
  • Quick Release joint installation

    Quick Release joint installation

    Push-and-click assembly makes setup fast, secure, and easy to reconfigure later.
  • Modular, upgradeable design

    Modular, upgradeable design

    Add or adjust components over time without rebuilding your workstation.
  • Living Product Certified (Net Positive)

    Living Product Certified (Net Positive)

    Climate, water, and energy positive manufacturing for sustainability-focused spaces.

  • Flexible single monitor support

    A streamlined setup that improves comfort and keeps your desk clear.
  • Built-in cable management

    Built-in cable management

    Routes cords neatly through the system for a cleaner, more organized desk.

Specifications

Variant

SKU

X81BETBC121NNNN

Number of Monitors

Single Monitor

Warranty

15 Years

Dimensions

Maximum Monitor Width

1524 mm

Arm Rotation

360°, with integrated stopper to optionally limit rotation to 90° or 180°

Monitor Left/Right Pan

180°

Monitor Upward Tilt

80°

Monitor Downward Tilt

15°

Weight

Minimum Monitor Weight

4.1 kg

Maximum Monitor Weight

22.7 kg

Materials & Sustainability

  • Product Materials

    Structural components are made from die-cast aluminum, providing strength and precision while maintaining a lightweight form. Surfaces are finished with a durable powder-coated finish designed to resist scratches, fingerprints, and everyday wear while maintaining a consistent appearance.

Who It's For

For people who want a clean single-monitor setup now, with the flexibility to expand later.

- Ideal for home offices where desk space and cable clutter matter

- Great for growing teams or SMB workstations that may evolve over time

- A strong fit for users who want ergonomic adjustment without complicated hardware

Certifications & Testing
  • HPD
  • DECLARE® - Red List Free
  • Living Product Challenge
  • CDPH
  • BIFMA LEVEL® - Level 3
  • SCS Indoor Advantage Gold
  • MID

Care, Maintenance & Longevity

  • Monitor Arm Care & Cleaning

    Wipe down with a soft, damp cloth and mild soap if needed.

My dock has been easy to reach, and my desk has been cable-free; it's a tremendous ergonomic improvement.

Best monitor arm w/ built-in dock.

The iPhone of monitor arms.

4.4
Rated 4.4 out of 5 stars
Based on 9 reviews
Total 5 star reviews: 5
Total 4 star reviews: 3
Total 3 star reviews: 1
Total 2 star reviews: 0
Total 1 star reviews: 0
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9 reviews
  • Adrian
    Rated 4 out of 5 stars
    4 Stars

    Cover arrived broken the same as last time I ordered this item. However they replaced it before and likely will again. Otherwise I would have given it 5 stars. Its great and modular and expandable.

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  • Ren K.
    Verified Buyer
    Rated 5 out of 5 stars
    Great arm

    Great arm but when I move the largest monitor it wobbles a bit. Still happy overall.

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  • Anika C.
    Verified Buyer
    Rated 5 out of 5 stars
    Excellent system

    Excellent system! Love the ergonomic life

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  • Mason C.
    Verified Buyer
    Rated 5 out of 5 stars
    Installation was surprisingly simple

    Installation was surprisingly simple, looks clean, and works exactly as described. Love the modular design.

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  • Mason H.
    Verified Buyer
    Rated 5 out of 5 stars
    Larger arm feels a

    It’s okay. I like the flexibility but the larger arm feels a bit loose when fully extended... panic for no reason

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