A red button to regain control of Direct Drive

With a powerful Direct Drive system, everything can go haywire in a fraction of a second: a steering wheel hitting its stop, a game crashing, or a loved one approaching the cockpit at the wrong moment. The MOZA E-Stop Switch addresses this very real need. It’s a large, red, punch-style button—like an industrial emergency stop—that you keep within easy reach to halt the system with a single press. Nothing more, nothing less—and that’s precisely its strength. You connect it to a compatible MOZA base, and it becomes a hardware safety switch, bypassing any menus or keyboard shortcuts.

Three connection modes, three levels of action

The true value of this small accessory lies in its three connection modes, which radically change how it works. In Mode 1, you connect it directly to the PC via a USB cable: pressing it disables haptic feedback, which is immediately restored when you release it. This is the gentlest setting, perfect for regaining control without interrupting the session.

In Mode 2, it is connected to the base’s DASH port using a six-pin RJ11 cable. The behavior remains the same as in Mode 1: the force feedback disappears while the button is pressed, then returns when it is released. Mode 3 goes much further. When connected to the dedicated E-STOP port via a four-pin RJ9 cable, it completely cuts off power to the base. After pressing the button, you must physically turn the base back on using its power button, just like a real emergency stop. You can therefore choose your level of security based on how you connect the button, which makes the accessory more versatile than it appears.

Manufacturing that prioritizes reliability

Visually, the E-Stop Switch incorporates all the design elements of a classic emergency stop button: a large red mushroom-shaped head mounted on a black base. The housing is made of aluminum alloy, a choice that prioritizes durability and gives the device a reassuring presence in the cockpit. The slightly textured red mushroom-shaped button is instantly recognizable and easy to grasp, even in the heat of the moment. It’s the kind of component you want to be solid and reliable, since it’s precisely during moments of stress that you count on it to perform.

Instant installation, no setup required

The biggest advantage in everyday use is that it requires absolutely no configuration. No drivers to install, no software to open, no profiles to create—just plug it in and it works. This simplicity is invaluable for a safety device, because a mechanism that doesn’t require configuration is a mechanism that won’t fail due to an update or a wrong setting. You mount it in an accessible spot in the cockpit, select the mode that matches your base, and it stays there, ready to go without ever demanding your attention.

Who is this stop button intended for?

The E-Stop Switch is clearly aimed at intermediate or experienced sim racers who use a high-force-feedback MOZA base on a fixed cockpit. The stronger the forces, the more sense it makes to have a circuit breaker within easy reach. It becomes even more relevant in a busy household: children running around the rig, family members unaccustomed to the intensity of a Direct Drive system, or a friend borrowing the rig for a session. It’s advertised as compatible with the R9, R12, R16, and R21 bases. It’s not an essential accessory for beginners with a modest setup, but for those who drive hard and want to race with peace of mind, it’s a simple and effective safety net.