ErgoDirect EDM-20H Sit-Stand Monitor Arm

Product ID 19698


  • Desk or Wall mounting monitor arm for sitting and standing
  • Supports ultrawide monitors up to 46" screen size. Contact us for compatibility
  • VESA monitor arm available with desk clamp, grommet or wall mount
  • Flexible monitor arm with variety of adjustment features
  • Install on manufacturing floor, for digital signage in a restaurant, retail store or home office workstation 
  • 20" height adjustability: 
  • 62" side-to-side adjustability
  • 33" horizontal extension: Extends display and pushes it out of the way when not in use


The EDM-20H is a versatile arm used to attach a smaller monitor up to 25 lbs within a sit-stand workstation or position a large display up to 30 lbs wherever you want it. It provides the flexibility to mount the arm on a wall or the desk. The EDM-20H offers unparalleled range of motion, while accommodating a user’s sitting or standing posture. Features include 20 inches (51 cm) of vertical adjustment and 62 inches (157 cm) of side-to-side motion.

Technical Drawing

Technical drawing for Ergotron 45-360-026 LX Sit-Stand Desk Mount LCD Arm

Technical Specifications

LCD size Capacity Lift Tilt Pan Rotation VESA
Screen Capacity Lift Tilt Pan Rotation VESA
Up to 42"

7 - 25 lbs

3.2 - 11.3 kg


51 cm

75° 360° 360° MIS-D/E/F

Product Information

Part Number EDM-20H
Description Sit-Stand LCD Arm (polished aluminum)
  • Extension
  • Desk clamp base or Wall mount
  • Grommet-mount base or Wall mount
  • 42 cm pole with desk mount selection
  • VESA brackets
Quality Tested 10,000-cycle test applied to lift mechanism, ensuring years of trouble-free height adjustment
Weight Capacity 7 to 25 lbs (3.1 to 11.3 kg). Monitor depth may affect weight capacity
Monitor Tilt 70° up and 5° down
Mounting Standards VESA MIS-D, 75/100 (hole pattern = 100 x 100 mm & 75 x 75 mm), MIS-E (hole pattern = 200 x 100 mm), MIS-F (hole pattern = 200 x 200 mm ONLY). Optional VESA Bracket Adaptor Kit (97-759) can be ordered separately for MIS-F interface with hole pattern of 400 x 200 mm, 400 x 300 mm or 400 x 400 mm
Locking Connections Between arm, extension and base offer increased theft deterrence and prevent potential disconnections caused by jarring or impacts
Mounting Options Desk clamp attaches to edge up to 2.5" (65 mm) thick; grommet mount attaches through hole 0.5" to 2.5" (7–65 mm) wide and up to 2.5" (65 mm) thick. Attaches directly to sturdy vertical surfaces. Where applicable, install to wood stud.
Cable Management Clips on the under side of the arm route and hide cords
NOTE Computer systems mounted on this product may require extra long USB, power or video cables in order to span between standing and sitting heights
Warranty Ten (10) years


  • 20" height adjustability allows users to alternate between sitting and standing positions while working on the display
  • Extends LCD up to 33" and pushes display out of the way when not in use
  • Vertical, horizontal adjustability provides ergonomic relief and relieves stress on the back, shoulder and neck
  • Increase viewing comfort - help reduce eye, back and neck strain
  • Upgrade LCD monitors and TVs with improved ergonomic adjustment
  • Patented CF motion technology provides premium ease-of-use adjustment
  • Cable management clips on the under side of the arm route and hide cords
  • Ideal for space-constrained spaces - folds to within 4.5" (12 cm) of back of desk in storage position
  • Secure installation - locking connections between arm, extension and base

Product Options/Accessories

Model EDM-20H
Manufacturer Ergodirect
Part Number EDM-20H

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