KYY X90G Quad Portable Monitor Extender Review: 3 More Screens
Source: Wired
Overview
One folds out to the left, one to the right, and one upwards; your laptop (there’s room for up to a 17.3‑inch machine) is meant to sit in the middle of this arrangement, providing the fourth screen in a quad‑display setup. The screen on top can swivel back so that it faces away from the user, offering the potential to use that screen for presentation purposes while still giving you three forward‑facing screens to work on yourself. The panels have no audio capabilities.
Fully extended, the device is a monster, stretching nearly 46 inches (almost 4 feet) from side to side and 18 inches vertically. At 6.4 lb, it adds significantly to your travel load, though it’s clearly not designed for situations that require real mobility.
Portability is further limited by power consumption: the KYY X90G draws up to 30 W. If your computer’s USB‑C port can output that wattage, the X90G can run via a single USB‑C cable connected to one of the two ports on the backing board. In practice, increasing the brightness caused flickering and failure when the laptop couldn’t supply enough power. KYY includes an extra USB‑C cable and power adapter; plugging the adapter into an outlet resolves the issue. This means you’ll likely need access to two AC outlets for a typical laptop setup—a drawback for use in cafés or other public spaces.
Each screen has its own hardware controls—a three‑button interface that opens a simple menu for adjusting brightness, color, contrast, and screen positioning. The default brightness of 30 / 100 is too dim for most tasks, but the factory settings are otherwise workable. I tested the X90G with a Windows laptop and found it straightforward to arrange the three external screens around the central display in the Display settings control panel, extending the desktop in all directions.
Resolution Restrictions
Photograph: Chris Null
In today’s laptop market, 1080p resolution is limiting, and this is the major constraint of the device. The three extra screens are restricted by their low resolution, reducing the amount of content that can be displayed effectively. A minimum 1920 × 1200‑pixel resolution is needed to make this additional screen real estate practical for knowledge work, though the current resolution may be acceptable for more casual content.