ergounion Laptop Tray for Monitor Arm, VESA 100x100, to 17.3 inch, Black Review (2026)

Turning a monitor arm into a laptop mount

This tray is designed to attach to an existing monitor arm rather than function as a standalone stand, which makes it a natural fit for anyone who already has a VESA-compatible arm on their desk and wants to add laptop support without buying a second separate mount. The black finish is chosen to blend visually with dark monitor arms and gaming desk setups rather than standing out, and it is also sold in a silver version for arms or desks with a lighter color scheme. For anyone building a multi-device arm setup, being able to swap a monitor and a laptop tray on the same arm saves desk space compared with separate stands for each.

VESA compatibility and mounting

The tray uses a 100x100 millimeter VESA mounting pattern, which is one of the most common plate sizes used across monitor arms on the market, so compatibility with a typical arm is likely though not guaranteed. The site's own note about checking arms with smaller VESA plates, such as 75x75, is worth taking seriously since this tray is listed specifically for the 100x100 pattern rather than being adjustable across multiple hole spacings. Anyone with an arm using a different VESA size will need an adapter plate or a different tray entirely, so confirming the arm's spec before ordering avoids a mismatched purchase.

Laptop size and weight capacity

The tray is rated to hold laptops up to 17.3 inches and 28.6 pounds, a generous capacity that covers not just standard laptops but larger gaming and creator laptops that tend to run heavier due to bigger batteries and cooling systems. This headroom matters because monitor arms have their own weight limits, and a tray capable of handling a heavy 17 inch laptop gives more flexibility than a tray rated only for smaller, lighter ultrabooks. Buyers should still check their monitor arm's own maximum weight rating separately, since the tray's capacity and the arm's capacity are two different numbers that both need to be respected.

Design details that affect daily use

The tray uses a U-shaped design with a hollow center section, intended to help dissipate heat from the laptop's underside during extended use rather than trapping warm air against a solid tray surface. Instead of side clamps that squeeze the laptop from the edges, it uses bottom-edge clips paired with a lip and non-slip pads, an approach meant to hold the laptop securely while keeping the side ports fully accessible for charging cables and peripherals. This bottom-clip approach is generally considered gentler on a laptop's chassis than side-clamping designs, though it does mean the laptop rests with slightly less lateral support than a clamped mount.

Where it ranks among laptop mounts

Within a lineup of sit-stand laptop mounts for home offices, this tray ranks near the top of the group, reflecting its strong weight capacity and the practical bottom-clip, ventilated design compared with competitors. Several similarly scored rivals from other brands offer comparable VESA compatibility and capacity, so the choice between them often comes down to finish color and small design details like clip style rather than a dramatic difference in core functionality. For anyone who already has a compatible VESA arm and a larger laptop, this is one of the stronger options in its category.

Frequently asked questions