Button Cluster or Button Box: Which Setup

What a button cluster is

A button cluster is the set of buttons, rotary encoders and switches built into the wheel face. On a racing wheel listing, the cluster is usually part of the rim, and the maker's page may show it in the image set rather than in the title. The controls sit close to the grips so your thumbs can reach them while you hold the wheel.

The size of a cluster varies with the rim style. A round GT-style rim often carries a small group of buttons spread across the face, while a formula-style rim may arrange a denser set of controls along the top and side panels. A listing that names a GT wheel or a formula wheel, such as the GT Wheel Add-On from Thrustmaster, usually tells you which layout the rim uses. The GT-style wheel guide explains the difference in general terms.

What a cluster cannot tell you: the number of buttons, what each button does, or whether each title lets you assign them. The maker's compatibility list and software pages decide that. Read about steering wheel button layout for the general terms.

What a button box is

A button box is a separate control panel with buttons, toggle switches and rotary knobs. It mounts on a wheel stand, a rig or a desk beside the wheel. Because it is separate, it does not move with the wheel and is not part of the force feedback motion.

Button boxes are built by several makers and by many small builders, and they are not part of the wheel guides on this site. The guides cover wheels, bases and pedals; a button box is an accessory you add to a setup you already own. A listing for a box may call out the number of buttons, the switch types and the mounting holes.

The buttons on a box are arranged by you: you choose where each switch sits and what label it gets. That is the main customization difference between a box and a wheel cluster. See how programmable buttons work for the general idea.

Ergonomics: buttons in reach

With a cluster on the wheel, the controls are always where your hands are. You can change a setting without lifting a hand from the rim. This matters when the wheel is busy with force feedback work and you want to keep both hands in place.

With a button box, you move one hand to the side to reach a switch, then return to the wheel. On a stand or rig, the box sits in a fixed spot, so your hand learns where each control is. Some drivers prefer that deliberate reach; others want everything on the rim.

Neither layout changes how the wheel drives. Both are about where you put your fingers, and that is a personal choice. The position of controls on the wheel spoke is part of the same question.

Customization: fixed versus free layout

A wheel cluster is fixed by the maker. The buttons, their positions and their labels come with the rim. You can usually assign functions in software or in the game, but you cannot move the controls or add more.

A button box is laid out by you. You decide which controls sit where, and you can label them to match the titles you play. For a truck simulator or a rally game with many functions, this lets you build a panel that matches your workflow.

If you change games often, a cluster on a wheel limits you to the buttons that are there; a button box can be relabeled for the next title. If you want one setup that works everywhere, a wheel with a built-in cluster keeps things simple. More about how many buttons a wheel carries and formula-style wheel benefits.

How many controls you need

Some sims need more controls than others. Truck simulators ask for lights, wipers, retarder, parking brake and menu functions. Rally games use a handbrake and chat controls. Open-wheel racing often needs brake bias, fuel map and traction control adjustments.

For these titles, a button box gives you space for the switches you need without crowding the wheel face. A wheel cluster may be enough for a road racing title where you mostly need a few buttons for menus and a push-to-talk.

The guides on this site sort wheels by platform and drive type, not by button count. When you read a wheel listing, check whether the maker's page shows the rim's button layout in the images. The best racing wheel for PC guide is a good starting point.

Reading a listing for buttons

A racing wheel listing may mention buttons in the title or may leave the cluster out of the title and show it in the image set. The site reads stated details only, so a title that names no button count tells you nothing about the cluster.

A listing that names a wheel series rather than a button count means you should look at the maker's page for the rim. The maker's description usually shows the controls and the software that assigns them. The compatibility list decides which titles recognise the buttons.

If a listing says nothing about buttons, that does not mean the wheel has none. It means the seller did not state a count. The steering wheel button layout guide covers what to look for.

What to pick for your situation

Questions

Does a button cluster work without software?

Most racing wheels need the maker's software to assign buttons, and the game also needs to accept the button input. The maker's support page lists the titles that recognise the wheel's controls. A wheel's main buttons usually work in titles that support the wheel, while extra functions need an assignment.

Can I add a button box to a console wheel?

A button box is typically a PC accessory that connects by USB. On a console, the wheel's built-in buttons are the ones the console recognises, because the wheel is the licensed controller. Check the maker's compatibility list before buying a button box for a console setup.

What does 'rotary encoder' mean in a wheel title?

A rotary encoder is a knob you turn to adjust a value, such as brake bias or fuel mixture. On a wheel cluster, it sits on the face so you can turn it while keeping your hands near the grips. On a button box, the same knob sits on the separate panel.

Do more buttons make a wheel better?

No. A wheel with more buttons gives you more controls to assign, but every button only matters if the title accepts the assignment and you actually use it. A wheel with a few buttons and a button box can cover more functions than a wheel with many buttons alone.

Can a button box be used with any wheel?

A button box is independent of the wheel. It connects to the PC by USB and sits beside any wheel on a stand or rig. The maker's mounting pages describe the bracket and the space it needs. The box does not affect the force feedback or the pedals.