Ergotron
Ergotron LX Pro Desk Monitor Arm (Matte Black)
$199
Best Monitor Arms · head-to-head
A sourced, side-by-side comparison. HUANUO Single Monitor Arm Mount HNSS6 is cheaper at $50. Every spec and price links to its source.
Ergotron
$199
HUANUO
$50Cheaper
The HUANUO Single Monitor Arm Mount HNSS6 wins 1 of the 1 specs we compare head to head; the other wins 0. The HUANUO Single Monitor Arm Mount HNSS6 is the cheaper at $50. The HUANUO Single Monitor Arm Mount HNSS6 both leads on specs and costs less — the straightforward pick.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $199 | $50 List price at huanuo.com |
| Brand | Ergotron | HUANUO |
| Released | — | — |
| Mount type | clamp/grommet | clamp/grommet |
| Monitors supported | 1 | 1 |
| Max screen size (in) | 34 | 32 |
| Max weight per arm (lb) | 22 | 19.8 |
| Vesa pattern | 75x75mm, 100x100mm | 75x75mm, 100x100mm |
| Height adjustment (in) | 13 in | 15.75 in |
| Full motion | Yes | Yes |
| Mechanism | gas_spring | gas_spring |
Sources — Ergotron LX Pro Desk Monitor Arm (Matte Black): ergodirect.com (verified 2026-06-20). HUANUO Single Monitor Arm Mount HNSS6: huanuo.com (verified 2026-06-20).
Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Two whitelisted hands-on testers, Wirecutter and PCWorld, both name the Ergotron LX Pro a top single-monitor arm pick, praising its easy, tool-light setup and build/motion quality that matches pricier arms; PCWorld calls it great value at its ~$200 price. Wirecutter measured setup at about 20 minutes but flags a tricky recessed tension screw and fiddly cable management; PCWorld's only knock is a lower max weight (22 lb) than the older LX (25 lb). Verdict: buy. (2 sourced reviews, 2 lab-tested.)
Praised: Easy, tool-light installation; Smoothness of motion, range, and sturdiness match pricier top-pick arms; Great value and build quality competitive with pricier arms at the ~$200 price.
Flagged: Recessed tension screw is tricky to reach and adjust; easier with a helper; Cable management is functional but cheap-feeling and fiddly; Lower max weight (22 lb) than the older LX (25 lb).
One whitelisted tester, PCWorld, reviewed the exact HUANUO HNSS6 hands-on, naming it the best single-monitor arm under $50. They praise its overall build quality, easy install (just three screws), and gas-spring hold, verified with a 12-pound, 32-inch panel in testing. Downsides: finicky plastic cable-management covers that won't hold many wires, and it is not as easy to set up/adjust or as sturdy as the pricier Ergotron LX and Monoprice arms. (1 sourced review, 1 lab-tested.)
Praised: Best value in a sub-$50 single arm; solid overall quality and easy install (just three screws); Gas spring held a 32-inch, 12-pound panel with ease in testing.
Flagged: Finicky plastic cable-management covers won't hold many wires; Not as easy to set up/adjust or as sturdy as pricier Ergotron LX / Monoprice arms.