Ergotron LX HD Sit-Stand Desk Arm Polished Aluminum
PRODUCT DESCRIPTION
Ergotron LX HD Sit-Stand Desk Arm for Displays up to 49" Polished Aluminum (45-384-026) - 10 Years Local Warranty
Premium Sit-Stand Mounting for Displays up to 49"
The Ergotron LX HD Sit-Stand Desk Arm is a heavy-duty desk solution for professionals running large or ultrawide screens. It accommodates displays up to 49 inches and 13.6 kg on a single polished-aluminium arm, combining refined looks with the strength demanded by trading desks, design suites and engineering workstations across Singapore.
20" of Constant Force Height Travel
With a 20-inch (50.8 cm) vertical range powered by Ergotron's patented CF (Constant Force) motion, the arm lifts a heavy display for standing work and lowers it for seated tasks with a single light-touch movement — encouraging healthy posture changes through the day without ever losing position.
Heavy-Duty Support, Smooth Control
Rated for monitors from 14 to 30 lbs (6.4–13.6 kg), the LX HD arm holds big panels rock-steady while still gliding effortlessly through 33 inches of reach, 70°/5° tilt, 360° pan and 90° portrait rotation. The lift mechanism is proven to a 10,000-cycle durability test.
Desk Clamp or Grommet, Clean Cabling
The kit ships with both a desk-clamp base and a grommet-mount base plus a 40 cm pole, fitting desk edges up to 2.5" thick. Under-arm cable clips keep leads tidy for a professional finish that frees the surface beneath your monitor.
Ergotron LX HD Sit-Stand Desk Arm Datasheet — Technical Specifications
General
| Product | LX HD Sit-Stand Desk Mount Monitor Arm |
| Part Number | 45-384-026 |
| Finish | Polished Aluminium |
| Displays Supported | 1 |
| Mounting Type | Desk clamp or grommet |
| Lift Technology | Patented CF / Constant Force™ motion |
Display Compatibility
| Screen Size | Up to 49" |
| Weight Capacity | 14–30 lbs (6.4–13.6 kg) |
| VESA Compatibility | 75 x 75, 100 x 100, MIS-E (200 x 100), MIS-F (200 x 200) mm |
| Optional VESA Adapter | 97-759 kit for 400 x 200 / 400 x 300 / 400 x 400 mm |
Adjustment & Motion
| Height / Lift | 20" (50.8 cm) |
| Tilt | 70° up, 5° down |
| Pan | 360° |
| Rotation | 90° (portrait / landscape) |
| Reach / Extension | Up to 33"; 62" side-to-side |
Design & Durability
| Construction | Polished aluminium |
| Desk Fitment | Clamp or grommet, edge up to 2.5" thick; grommet hole 0.5"–2.5" |
| Cable Management | Under-arm cord clips |
| Product Weight | 17.5 lbs (8 kg) |
| Manufacturer Warranty | 10-Year Manufacturer Warranty (Ergotron) |
| Local Warranty | Local Warranty (Singapore) |
Compatibility & Fit
The LX HD Sit-Stand Desk Arm holds a single display up to 49 inches weighing 14–30 lbs (6.4–13.6 kg) on VESA 75 x 75, 100 x 100, 200 x 100 (MIS-E) or 200 x 200 (MIS-F) mm. Larger 400-series patterns need the optional 97-759 adapter kit.
It fits desks via a two-piece clamp or a grommet base (both included), for edges up to 2.5 inches thick, with a grommet hole of 0.5–2.5 inches. This is Ergotron's arm of choice for large ultrawide and curved panels on a desk — provided they stay within the 49" / 13.6 kg envelope and carry a compatible VESA plate. For a wall-mounted version, see the LX HD Sit-Stand Wall Arm (45-383-026).
Package Contents & LX HD Ordering Information
In the box: LX HD sit-stand arm, extension, desk-clamp base, grommet-mount base, 40 cm pole, VESA display brackets and hardware.
LX HD Sit-Stand Range
| Desk Mount — Polished Aluminium | 45-384-026 (this listing) |
| Wall Mount — Polished Aluminium | 45-383-026 |
Related LX Accessories
| VESA Adapter Kit (400-series) | 97-759 |
Datasheet & Downloads
Frequently Asked Questions — Ergotron LX HD Sit-Stand Desk Arm
How does this differ from the LX HD Sit-Stand Wall Arm?
Same 49" / 13.6 kg heavy-duty arm and 20" of lift — this desk version (45-384-026) clamps to the desk or a grommet, while 45-383-026 fixes to a wall.
What size and weight of monitor does it support?
Displays up to 49 inches weighing 14–30 lbs (6.4–13.6 kg). (This corrects some older figures — the verified Ergotron rating is 14–30 lbs.)
Does it clamp or use a grommet?
Both bases are included: a two-piece desk clamp and a grommet mount, for desk edges up to 2.5" thick.
Can I use it for a curved ultrawide monitor?
Yes, as long as the panel is within 49" and 13.6 kg and has a supported VESA pattern.
How much does it raise and lower the screen?
20 inches (50.8 cm) of Constant Force travel, giving true seated-to-standing flexibility.
Is there a Singapore warranty?
Yes. Every Ergotron LX HD Sit-Stand Desk Arm sold by SourceIT comes with local Singapore warranty and a GST invoice; Ergotron backs the LX HD Sit-Stand Desk Arm with a 10-year manufacturer warranty.
