A+

A+. It’s the best you can get.

The A+ is the next evolution of trackballs. It gets top marks in ergonomics, high performing tech, and extreme configurability. Do more today with the A+.

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More buttons. More features.

Great ergonomics

The A+ comes with a detachable wrist rest. It can be attached and detached quickly to adjust your setup on the fly, or attached permanently.

Two scrolling knobs

The A+ includes two high-fidelity scrolling knobs, giving even more options about how to use your A+.

More buttons

The A+ leads the field with eight buttons. Every button is engineered to precision to provide a crisp, accurate click, perfect for any application.

Scroll on

The A+ has out-of-the-box drag scroll functionality. Combined with the two knobs, the A+ provides unmatched scrolling precision for any preference.

Incredible new functionality.

Flick gestures

Hold one of the buttons to activate flick gesture mode, and then flick the ball in one of eight directions to input a command. Flick gestures vastly increases the number of commands at your fingertips.

Layering

The A+ has two layers by default, covering everything you need to navigate and configure your A+. If you need more, you can have as many layers as you want, unlocking any configuration you need.

Left-hand mode

The A+ can be configured on-the-fly to swap to left-hand mode, mirroring the buttons for quick and easy switching. Configurable left-hand mode makes it easier to switch from the left hand to the right, decreasing fatigue.

And much more

Between flick gestures, on-board configuration and layering, the A+ can quickly and easily become the exact input device you need to complete your setup, covering any functionality you can dream of.

Check Out the User Manual

Customize without limits.

The A+ ships with QMK firmware preloaded and VIA compatibility. Every button on the A+ can be customized with the online web app, and the changes persist for ultimate portability.

Configure with VIA

No compromises on performance.

The A+ is powered with the very best electronics, giving unparalleled mouse precision, crisp button clicks, and the highest fidelity scrolling.

PixArt PMW-3360 Mouse Sensor

Omron D2LS-21 Switches

TI TMAG5273 Rotary Sensor

See what’s inside

3D-printed, your way.

Introducing new colours

Whether you like your desk calm and neutral or bright and bold, we’ve got a colour in stock that’ll let you match your A+ to your setup.

Endless possibilities

Of course, you’re not just limited to our case colours. Since the A+ is 3D-printed, you can make yours as unique as you.

Right to repair

If any part breaks, it’s easy to print out replacements, using any 3D-printer and using our open-source design files. That means a longer lifespan for your A+.

Choose your Colours

Open-source, as always.

Entirely open-source

Source files for STEP files, PCB design files, firmware, and everything else are available, for free, forever, without any limits.

Radical transparency

We believe in giving our supporters all the information to make informed choices. That’s why we are committed to full transparency on parts, fabrication methods, and how it all works.

Complete documentation

Full, detailed documentation for assembly, modifications, and maintenance is available, including helpful photos and diagrams to help you complete your build.

go to our github page

Tech specs that work for you.

Case Dimensions

180mm x 100mm x 62mm, or
7.0″ x 3.9″ x 2.4″

Supported Operating Systems

Windows, Mac, and Linux

Weight

260g, or 9.2oz

Tracking Chip

PixArt PMW-3360
>1,000Hz Polling Rate
Default 800 CPI
Up to 12,000 CPI
Up to 50g acceleration

Microcontroller

Raspberry Pi RP2040
Cortex M0
125MHz

Rotation Sensor

Texas Instruments TMAG5273
1,000Hz Polling Rate
20,000 samples per second
12-bit resolution

Switches

Omron D2LS-21
Up to 5 million actuations

See what others have said about the A+.

“I love it! By far the best pointing device I have ever laid my hands on.”

– r/Outrageous_Sort_8984 (Reddit)

“Overall I like the device. It’s a good iteration on the adept. I can’t wait to configure it to match my workflow.”

– r/quickhand (Reddit)

“this might become the ultimate pointing device out there”

– meidam (Discord)

“Really excited for the a+ knob-buttons right by your thumb seems really great!”

– blabel (Discord)

“Shut up and take my money. The old Adept felt almost perfect, but what you’ve done here is perfection.”

– u/xpusostomos (Reddit)

“Wow, two clicky scroll wheels. Will definitely be ordering a kit of this. Thanks for everything you do!”

– u/ClosetEthanolic (Reddit)

“The two scroll wheels on the bottom eliminate one of my pain points with the Adept design.”

– u/plazman30 (Reddit)

“I skipped the original adept because I wanted a scroll wheel that wasn’t just drag scrolling, this looks like an awesome upgrade”

– piece_maker3114 (Discord)

“Using this for work has been a game changer. Definitely recommended! After my few changes it’s basically the perfect device and I can use it on my work machine because no drivers.”

– jabc.1 (Discord)

Shop the complete collection.

We’re on Discord

Join the conversation. Get early access to product updates and releases. Get new ideas and code from other users like you. And join Office Hours with the designers.

Join our discord server

And on Reddit

Join the community. See the latest builds and colour runs. Learn about mods that extend the functionality of your devices. And weigh in on future product features.

join our subreddit