Ergotron's heavy-duty HX arm with a hinged dual bow and handle, for two screens of up to 32 inches and 2.3 to 8 kg each. Constant Force lift through 29.2 cm, up to 60 cm of extension, quick-release pivots, desk clamp and grommet mount included, and Ergotron's 10-year warranty.
Ergotron HX Desk Dual
Two Big Screens on One Strong Arm
The HX Dual carries two screens of up to 32 inches each on a hinged bow at the end of Ergotron's heavy-duty HX arm. Ergotron rates it for 2.3 to 8 kg per screen, with 29.2 cm of lift and up to 60 cm of extension.
The bow hinges in and out so the pair can sit flat or wrap around you, and a handle under the bow moves both screens together.
Movement
Light to Move, Stays Where You Put It
Ergotron's Constant Force™ mechanism balances the screens on a spring, so the effort stays small and even whether you lift, lower or tilt. That matters on a sit-stand desk, where the screens move every time the desk does.
The screens tilt 70° up and 5° down, the extension pans through 360°, the base rotates through 180°, and each screen sits on a quick-release pivot so it lifts off for a swap.
Ergotron HX monitor arm review: a film studio fit-out
The Details
Five Things That Make It an HX Dual
The hinged bow, the lift, the front view, the white finish and the mount.
Hinged Bow and Handle
The bow hinges in and out to angle the screens, and the handle moves both at once.
29.2 cm of Lift
Constant Force™ lift through 29.2 cm, tilt 70° up and 5° down.
Two 32-Inch Screens
Rated by Ergotron for screens up to 32 inches and 2.3 to 8 kg each.
Matte Black or White
Two finishes; the white arm can take Ergotron's white triple bow kit.
Clamp or Grommet
Desk clamp and grommet mount both included; the clamp takes desks up to 66 mm.
The Numbers
- Screen Weight
- 2.3–8 kg each
- Screen Size
- Up to 32 in each
- Lift
- 29.2 cm
- Extension
- Up to 60 cm
- Desk Clamp
- Desks up to 66 mm
- Warranty
- 10 years
Figures are from Ergotron's HX Desk Monitor Arm specification sheet (2022) and HX Dual dimension drawing (rev. 13 Feb 2024). Ergotron does not publish the arm's own weight. Weigh your screen without its stand. The drawing gives 2.3–7.9 kg (5–17.5 lb) per screen; the sheet rounds to 8 kg.
HX Desk Dual, Matte Black or White
This Model
This listing is the Ergotron HX Desk Dual Monitor Arm in matte black (45-476-224) or white (45-476-216). In the box: HX arm, extension, hinge bow, two monitor pivots, handle, desk clamp, grommet mount and monitor mounting hardware.
Ergotron's HX Triple Monitor Bow Kit (98-009-216) converts the arm to three screens of up to 24 inches and 1 to 4.6 kg each. Ergotron lists it in white and polished aluminium, not matte black. One large ultrawide instead? See the HX Desk Monitor Arm.
Who It Suits
For Heavier Screens Than Standard Arms
The HX Dual takes 32-inch screens up to 8 kg each on one arm and one desk fixing, which suits design, video and trading desks running a pair of large monitors.
Tell us both screen models on 02 9640 0642 and we will check the weights and the fit to your desk before you order.
Why We Stock the Ergotron HX Desk Dual
We stock the HX Dual for pairs of large screens: two 32-inch monitors of up to 8 kg each on one heavy-duty arm, moved together by the handle, with Ergotron's Constant Force™ lift keeping the effort light. Ergotron tests the HX to 10,000 motion cycles. The photo shows a white HX arm.
Ergotron's warranty terms give 10 years on HX products, and claims are handled by Chair Dinkum in Sydney on 02 9640 0642. Your rights under the Australian Consumer Law for faulty or damaged goods are separate and are not limited by it.
Features & Specifications
Key Features
-Heavy-duty HX arm with hinged dual bow and handle
-Screen weight 2.3–8 kg per screen (drawing: 2.3–7.9 kg, 5–17.5 lb)
-Screens up to 32 in each
-Constant Force™ lift: Ergotron's spring mechanism keeps the effort small and even through the range of movement
-Lift 29.2 cm; tilt 70° up / 5° down
-Extension pan 360°; base rotation 180°; extension up to 60 cm
-Quick-release monitor pivots
-VESA 75 × 75 and 100 × 100 (MIS-D)
-Desk clamp and grommet mount both included; desk clamp takes desks up to 66 mm (drawing)
-Passes Ergotron's 10,000-cycle motion test
-Optional HX Triple Monitor Bow Kit 98-009-216, white (three screens up to 24 in, 1–4.6 kg each)
-Shipping weight 12.2 kg; carton 41 × 48 × 19 cm
-Finishes: matte black 45-476-224; white 45-476-216
-Warranty: 10 years (Ergotron)
Downloads
Chair Dinkum — warrantyLink →Dimensions
Screens2, on a hinged bow
Screen Weight2.3–8 kg each
Screen SizeUp to 32 in each
Lift29.2 cm
Tilt70° up / 5° down
Extension Pan360°
Base Rotation180°
ExtensionUp to 60 cm
Desk ClampDesks up to 66 mm
VESA75 / 100 mm
Shipping Weight12.2 kg
Part Numbers45-476-224 matte black; 45-476-216 white
Warranty10 years
Figures are from Ergotron's HX Desk Monitor Arm specification sheet (2022) and HX Dual dimension drawing (rev. 13 Feb 2024). Ergotron does not publish the arm's own weight. Weigh your screen without its stand. Warranty terms are on our warranty page.
Frequently Asked Questions
If each screen weighs 2.3 to 8 kg without its stand, is 32 inches or smaller and has 75 or 100 mm VESA holes, it is within Ergotron's rating. Screens under 2.3 kg are too light for the spring; check the weights on the screen maker's specification sheet.
Both a desk clamp and a grommet mount are included. Ergotron's drawing shows the clamp taking desks up to 66 mm thick. If a beam or modesty panel sits at the back edge, call 02 9640 0642 before you order.
Yes, with Ergotron's HX Triple Monitor Bow Kit (98-009-216), which carries three screens of up to 24 inches and 1 to 4.6 kg each. Ergotron lists it in white and polished aluminium only, so it will not match the matte black arm. Ask us to add it to your order.
The LX Pro Dual Side-by-Side gives each screen its own arm, for screens up to 27 inches and 9 kg each, for less. The HX Dual puts both screens on one heavier arm with a hinged bow and handle, and takes 32-inch screens.
10 years. Ergotron's warranty terms give a 10-year warranty on all HX products, and the product's specification sheet states 10 years. Claims are handled by Chair Dinkum in Sydney on 02 9640 0642; full terms are on our warranty page. Your rights under the Australian Consumer Law for faulty or damaged goods are separate and are not limited by it.
Call 02 9640 0642 to check which arms are on display at our Pyrmont showroom, 1/209 Harris Street, before you visit. We can also check your screens and desk over the phone before you order.
