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- Full motion 5-axis adjustment — 360°/360° dual arm rotation
- Tilt +90°/-25°, swivel ±90°, pivot ±90° landscape/portrait
- Patented mechanical constant-force spring — no gas pressure loss
- Smart-balance torsion spring pivot — auto-matches monitor weight, no drooping
- Constant 6–10N tilt resistance, 50,000+ fatigue-tested cycles
- Tool-free True Quick-Release push-to-lock VESA plate
- Built-in hidden cable routing — clutter-free desk
- Dust cap on mounting head — extended service life
- Height adjustment: 235mm (9.3″) | Max extension: 530mm (20.9″)
- Pole height: 420mm (16.5″)
- VESA: 75×75mm / 100×100mm
- Load capacity: 2–9KG | Screen size: 17–32 inches
- Fits desk thickness 20–80mm
- C-Clamp + Grommet both included
- Material: Aluminum alloy + cold-rolled steel + plastic
NB ERGONOMIC A3 Monitor Arm — Full Motion Desk Mount for 17–32 Inch Monitors
The NB ERGONOMIC A3 is a full-motion single monitor arm built for gamers, creators, and professionals who demand smooth, precise, and long-lasting screen positioning. It features NB’s patented mechanical constant-force spring system, a smart-balance torsion spring pivot, and a tool-free quick-release VESA plate. In addition, the NB ERGONOMIC A3 supports screens from 17 to 32 inches with a load capacity of 2 to 9KG — making it compatible with the vast majority of monitors on the market.
As a result of its five-axis adjustment system and dual 360° arm rotation, the A3 gives you complete freedom to position your screen exactly where you want it.With 50,000+ fatigue-tested spring cycles, it is built to last. Check out our full range of Monitor Arms at Backseat Gaming, or learn more on the NB ERGONOMIC official website.
Who Should Buy the NB ERGONOMIC A3?
- Gamers who want their screen at the perfect angle without cable clutter
- Office users looking to free up desk space and reduce neck and eye strain
- Creators and editors who switch between landscape and portrait modes
- Users with 17–32 inch monitors who want a stable, long-lasting mounting solution
- Anyone upgrading from a stock monitor stand to a full-motion arm
NB ERGONOMIC A3 — Five-Axis Full Motion Adjustment
The NB ERGONOMIC A3 offers complete freedom of movement across five independent axes. In addition to the wide tilt range, the monitor head swivels left and right and rotates for portrait or landscape mode. Furthermore, both the upper and lower arms rotate a full 360° independently. As a result, you can position your monitor at virtually any angle — forward, back, high, low, or fully sideways — with smooth, consistent resistance throughout.
Tilt+90° / -25°Left / Right Swivel±90°Portrait / Landscape Pivot±90°Upper Arm Rotation360°Lower Arm Rotation360°Height Adjustment235mm (9.3″)NB A3 — Patented Mechanical Constant-Force Spring
Unlike standard gas springs that can lose pressure over time, the NB ERGONOMIC A3 uses NB’s patented mechanical constant-force spring system. This spring structure maintains smooth, consistent resistance across 50,000+ fatigue-tested cycles. As a result, the arm feels exactly the same on day one as it does years later. Furthermore, the spring is housed inside the arm for a clean, minimal look while protecting the mechanism from dust and wear.
Smart-Balance Torsion Spring Pivot — No More Drooping
One of the standout features of the NB ERGONOMIC A3 is its intelligent torsion spring pivot system. This mechanism automatically matches the weight of your monitor — whether light or heavy — and maintains a constant 6–10N of holding force. As a result, the monitor stays exactly where you position it with no drooping or drifting over time. Furthermore, the pivot requires no manual tension adjustment — simply mount your monitor and the system calibrates itself.
NB True Quick-Release — Push to Lock, One Step Done
The NB ERGONOMIC A3 features NB’s proprietary True Quick-Release VESA plate system. Simply attach the VESA plate to your monitor, then push it onto the arm head — it clicks and locks instantly with no tools or screws required. In addition, a dust cap on the mounting head protects internal components and extends the arm’s service life. However, when you need to remove or swap monitors, the quick-release button allows single-handed detachment in seconds.
Built-In Hidden Cable Management
The NB ERGONOMIC A3 features a built-in hidden cable routing channel running the length of both arms. In addition, cable clips keep wires neatly secured from monitor to base. As a result, your desk stays clean, clutter-free, and organized — with no visible cables running loosely across your setup.
Dual Installation Modes — Clamp or Grommet
The NB ERGONOMIC A3 supports two installation methods to suit different desk types. Both options are included in the box. Furthermore, the 3-step installation process — mount the base, attach the arm, click the monitor into place — means setup is quick and straightforward without professional help.
- C-Clamp — clamps to the edge of any desk, no drilling required, fits desk thickness 20–80mm
- Grommet — inserts through an existing desk hole for a cleaner, more permanent installation
