Ergotron HX Desk Monitor Arm vs Secretlab Magnus Monitor Arm (Heavy Duty)
Two of the monitor arms in our best monitor arms: ergotron, uplift, secretlab, vari & haworth comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: Heavy-duty arm for up to 42 lb and 49"
Check price at AmazonBest for: For 34–57" screens up to 35.2 lb
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Ergotron HX Desk Monitor Arm | Secretlab Magnus Monitor Arm (Heavy Duty) | Weight |
|---|---|---|---|
| Max monitor weightThe top of the maker's rated weight range. Heavier ultrawides and 32"+ monitors need more. | 42 lb | 35.2 lb | 35% |
| Max screen sizeThe largest diagonal the maker rates the arm for. Ergotron notes weight matters more than size. | 49 in | 57 in | 15% |
| Height adjustmentTotal up-and-down travel. Where a maker gives a low and high point, we subtract. | 11.5 in | 10.4 in | 20% |
| ReachHow far the arm extends from its post; more reach lets you pull the screen closer or push it back. | 23.6 in | 20.9 in | 15% |
| WarrantyYears of coverage. Lifetime scores the same as 15 years. | 10 yr | Not listed | 15% |
| Weight range | 20–42 lb (9.1–19.1 kg) | 8–16 kg (17.6–35.2 lb) | info |
| Typical screen | Up to 49" | Not listed | info |
| Lift | 11.5" (29.2 cm) | Not listed | info |
| Extension | Up to 23.6" (59.4 cm) | Not listed | info |
| Screen | Not listed | 34"–57" | info |
| Height range | Not listed | 195–460 mm (10.4" travel) | info |
| Reach | Not listed | 530 mm (20.9") | info |
| Warranty | Not listed | Not published by the maker | info |
| ErgoPick score | 8.2/10 | 5.9/10 | 100% |
Where each one comes out ahead
Ergotron HX Desk Monitor Arm
Better published figure on: Max monitor weight, Height adjustment, Reach.
What we like
- Top max monitor weight in this comparison (42 lb)
Watch out for
Secretlab Magnus Monitor Arm (Heavy Duty)
Better published figure on: Max screen size.
What we like
- Top max screen size in this comparison (57 in)
Watch out for
- Warranty not published by Secretlab
Verdict
Heavy-duty arms. Ergotron holds 42 vs 35.2 lb and lifts 11.5" vs 10.4"; Secretlab is rated to 57" vs 49" screens.
- Ergotron HX Desk Monitor Arm: Ergotron: HX Desk Monitor Arm spec sheet
- Secretlab Magnus Monitor Arm (Heavy Duty): Secretlab: Magnus Monitor Arm (Heavy Duty)