Simply AVS are able to offer significant discounts for Education customers, and for larger orders. Purchase orders welcome. Finance options available.
We can also offer a full installation service:

Contact our team now to discuss on live chat, email, phone or book a video call.
The Kardo PMSA521-B is a single‑screen monitor arm designed to mount onto a tool‑rail system. With a sturdy steel build and sleek black finish, it supports up to 6 kg weight, making it suitable for lightweight to mid‑sized monitors. It features a quick‑release VESA plate, one‑touch height adjustment, and integrated cable management — ideal for modular workspaces, labs, or any environment that uses tool rails.
IN STOCK
Simply AVS are able to offer significant discounts for Education customers, and for larger orders. Purchase orders welcome. Finance options available.
We can also offer a full installation service:

Contact our team now to discuss on live chat, email, phone or book a video call.
The Metalicon Kardo PMSA521‑B is a premium ergonomic solution for mounting a monitor directly onto a tool‑rail system. Its design centers around a 240 mm pole that clamps securely to standard tool rails, saving desk space and enabling clean, efficient workstation layouts. The arm supports up to 6 kg, allowing it to accommodate a large range of monitors while maintaining stability and safety.
Its quick‑release VESA plate (75 × 75 mm and 100 × 100 mm) lets you easily attach or detach monitors without needing tools. The height adjustment mechanism is smooth and intuitive — you can adjust screen height with a single action to suit different users or tasks. Built-in cable management keeps power and display cables neatly routed along the pole, removing clutter and improving the overall look of the workspace.
Crafted from durable steel and finished in matte black, the PMSA521-B blends into professional environments while offering reliable performance. It’s certified to BS EN ISO 9241 for ergonomic design, and comes backed by a long warranty, making it a solid choice for workstations, labs, industrial setups, and anywhere modular mounting is needed.
| Feature | Specification |
|---|---|
| Model | PMSA521‑B |
| Type | Tool‑rail mounted, single‑screen monitor arm |
| Weight / Monitor Capacity | Supports up to 6 kg |
| VESA Compatibility | 75 × 75 mm and 100 × 100 mm (quick‑release plate) |
| Height Adjustment | One‑touch / quick‑release on a 240 mm pole |
| Pole Height | 240 mm |
| Material | Steel |
| Cable Management | Integrated along the pole |
| Mounting Mechanism | Pre‑assembled clamp for tool‑rail systems |
| Finish / Colour | Black (‑B variant) |
| Ergonomic Certification | Certified to BS EN ISO 9241 (Workplace Ergonomics) and PP 045 (Safety & Durability) |
| Warranty | 10 years |
Pole height: 240 mm
Boxed / shipping weight: ~1.3 kg
| ean | 5053697035928 |
|---|---|
| Brand | Metalicon |
| Education discount | Black Friday Deal |
| Indoor or Outdoor | Indoor |
| Google EDLA | No |