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Head-to-head · Best Dual Monitor Arms

Ergotron HX Dual vs MSI MAG MT201D Dual Monitor Arm

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

MSI MAG MT201D Dual Monitor Arm is the only one of the two with a published score (4.9); Ergotron HX Dual has none, so this is not a close call so much as an unmeasured one. MSI MAG MT201D Dual Monitor Arm is best for: Owners of large or ultrawide monitors who want a high-capacity dual arm with a 3-year warranty and have space behind the desk. Read the strengths below before deciding.

Ergotron HX Dual
Ranked #5 in Best Dual Monitor Arms
Ergotron HX Dual
Unrated3 sources$539as of Oct 11

The Ergotron HX Dual is the heavy-duty choice: a premium arm built to carry large, heavy monitors and ultrawides that would overload a standard LX. Reviewers praise its top-notch materials, finish, and engineering, with a 10-year warranty to match. It is the most expensive arm here and overkill for light setups, and reviewers note a touch of wiggle in the mounts, but for big-screen, high-mass dual configurations it is the most capable option.

Strengths
  • — Heavy-duty design supports large, heavy monitors and ultrawides
  • — Smooth, premium articulation with a 10-year warranty
  • — Built to reposition two 32-inch monitors with ease
Watch-outs
  • — Reviewers note slight wiggle between the monitor mounts and arms
  • — Vertical stroke may be short for very tall users
$539 · Check Price on AmazonFull review →
MSI MAG MT201D Dual Monitor Arm
Higher ratedRanked #1 in Best Dual Monitor Arms
MSI MAG MT201D Dual Monitor Arm
1 source$125.99as of Oct 16

The MSI MAG MT201D is a spring-assisted dual arm rated for two monitors up to 45 inches and 44.09 pounds each. Windows Central bought one for its own office, ran a 34-inch ultrawide and a 27-inch 4K monitor on it, and gave it 5 out of 5, calling it "the sturdiest, most versatile, and easiest to assemble monitor mount" its reviewer had used. The catches it found: the arms need room behind the desk to work, and the desk must be at least 10mm thick.

Strengths
  • — Windows Central rated it 5 out of 5 and called it the sturdiest, most versatile and easiest to assemble mount its reviewer had used
  • — Supports two monitors up to 45 inches and 44.09 pounds each, per Windows Central's spec table
  • — Windows Central had it assembled with both monitors attached within 45 minutes
Watch-outs
  • — Windows Central found the arms need space behind the desk; its reviewer pulled the desk about a foot from the wall
  • — Requires a desktop between 10mm and 35mm thick; Windows Central recommends a solid desk
  • — No RGB lighting (that is the pricier MPG MT201DR)
$125.99 · Check Price on AmazonFull review →

How they stack up

Ergotron HX Dual

The HX Dual is the heavy-duty step up from the Ergotron LX Dual, carrying far more weight per arm and handling larger monitors and ultrawides that would exceed the LX's rating. It is markedly pricier than the LX Dual and VIVO STAND-V002, and is overkill for the standard dual-27-inch setups those arms target.

MSI MAG MT201D Dual Monitor Arm

Its 44.09-pound per-arm rating and 45-inch screen limit, from Windows Central's spec table, are higher than the Ergotron HX Dual's 10-35 lb and 32-inch limits, the Ergotron LX Dual's 7-20 lb and 27-inch limits, and the VIVO STAND-V002's 22 lb. Its warranty is 3 years against 10 years on both Ergotron arms. Unlike the VIVO, which is screw-tensioned with no spring, each MT201D arm has a built-in spring with adjustable tension.

Specs side-by-side

SpecErgotron HX DualMSI MAG MT201D Dual Monitor Arm
ConstructionAluminum + steel—
Weight Capacity10-35 lb per arm44.09 lb per arm
Monitor SizeUp to 32" eachUp to 45" each
MotionFull lift, tilt, pan, rotate—
DesignHeavy-duty single pole—
MountC-clamp / grommet optionsC-clamp or grommet
FinishBlack, white, polished aluminum—
Warranty10 years3 years
MaterialAluminum—
VESA—75x75 / 100x100
Tilt—20 to 50 degrees
Swivel—90 to 90 degrees
Pivot—180 to 180 degrees
Vertical Extension—Up to 20"
Horizontal Extension—Up to 21.46"
Adjustment—Spring arms with Allen-key tension adjustment
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