Open Box: Ergotron 45-478-216 HX Wall Mount Monitor Arm (white)

Product ID 19850
Open Box: Ergotron 45-478-216 HX Wall Mount Monitor Arm (white)
Open Box: Ergotron 45-478-216 HX Wall Mount Monitor Arm (white)


  • Box: Never Installed or Opened
  • Product quality: Never Used; Re-certified
  • Box quality: Good
  • HX Wall Mount Monitor Arm for heavy monitors
  • For an ultrawide monitor that is above 43" screen size, see our solution 
  • Mounts monitors ranging from 20-42 lbs
  • Provides vertical adjustment:  11.5"
  • Extends monitor 23.6" 
  • Arm folds back to free up space in tight areas
  • 10-year Warranty


HX Monitor Arm 45-478-216 provides flexibility in the form of height adjustability and extension to your heavy monitors, weighing from 20-42 lbs. Mount the HX arm on your wall, install your heavy monitor and what you have freed up is valuable desk space and/or created a public working space for everyone in the office. This arm's 11.5" vertical as well as 23.6" horizontal adjustability not only allows various users to position the display to suit their ergonomic preference but it also lets them retract the arm when not in use. This feature is especially important in space constrained areas. The display adjustability increases ergonomic comfort by reducing strain on shoulders, neck and eyes.

Higher weight capacity of this arm makes it suitable for healthcare, hospital diagnostic/treatment rooms like radiation, graphic designing and surveillance needs that demand heavy monitors. Modular ability to increase from single monitor setup to triple monitor setup (with a HX Triple Bow Kit sold separately) is a big attraction for these industries too. Available in white and polished aluminum, this arm looks slick and chic and comes with a ten year warranty.


IMPORTANT NOTE - Please note that mounting ultrawide monitors is an evolving field. As new monitors are coming to market all the time, it is not possible to test each and every ultrawide monitor with all the arms that we are offering. However based on the specifications, we believe this arm is compatible with most ultrawide monitors. We recommend that, if and when you purchase this arm, do not discard the original packaging material in case it is needed for a return.   


Technical Drawing

Technical Drawing for Ergotron 45-478-216 HX Wall Mount Monitor Arm (white)

Technical Specifications

LCD size Capacity Lift Tilt Pan Rotation VESA
Screen Capacity Lift Tilt Pan Rotation VESA
Up to 43"

20 - 42 lbs

9.1 - 19.1 kg


29.2 cm

75° 180° 360° MIS-D/E/F

Product Information

Part Number 45-478-216
Description HX Wall Monitor Arm (white)
  • Arm

  • Extension

  • Monitor pivot

  • Wall mount and monitor mounting hardware

Arm Folds back over the base into a compact retracted position; perfect for tucking under systems furniture storage shelves or cabinets in space constrained areas
Portrait/Landscape Rotation Portrait/landscape rotation with lockout
Cable Management Streamline cable management that routes cables under arm and within extension
Rotation Monitor can be rotated 360° at connection point of arm and extension; rotation is restricted to 180° at connection point of extension and base
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
Mounting Options Attaches directly to sturdy vertical surfaces. Where applicable, apply to wood stud. Also attaches to wall track using bracket 97-091 (order separately)
Screen Size Maximum screen size determined by the monitor weight
Weight Capacity 20–42 lbs (9.1–19.1 kg)
Tilt Range 70° backward, 5° forward
Shipping Dimensions 12" x 19.2" x 7" (30.5 x 48.8 x 17.8 cm)
Shipping Weight 18.3 lbs (8.3 kg)
Warranty Ten (10) years


  • Increases viewing comfort: Helps reduce eye, back and neck strain

  • Patented CF motion technology provides premium ease-of-use display adjustment

  • Cable management feature routes cables tightly under the arm and through the extension, out of the way

  • Eliminates scrolling: Rotate screens for portrait viewing of photos and documents

  • Rotation-stop on base limits range to 180° and prevents monitor from making contact with wall

  • Folding arm frees up space in constrained areas

  • Upgrade this arm with the HX Triple Bow Kit to create a triple monitor arm

  • Passes Ergotron’s 10,000-cycle motion test, which ensures years of trouble-free height adjustment

Product Options/Accessories

Model 45-478-216
Manufacturer Ergotron
Part Number 45-478-216
UPC 698833054521

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