Open Source
Firmware
Free
Flash your own ESP32-S3 board. Get the source code and build instructions directly on GitHub.
Download FirmwareWacom on a Remote MacYour real tablet, with the original Wacom driver
macOS has no native software path for USB passthrough. An ESP32-S3 dongle (USB/IP over the network) presents a remote Wacom or other drawing tablet to the Mac as a real USB device, so the original driver, pen pressure, tilt and Express Keys all work.
Open Source
FreeESP32-S3
Dongle
Dev Kit
$10Pre-flashed, ultra-compact ESP32-S3 USB dongle. Plug into a MacBook for instant hardware passthrough.
Dongle
with Screen
Kickstarter
The same pre-flashed ESP32-S3 in a USB stick case with a small status screen. Price revealed at the Kickstarter launch.
KickstarterKickstarter Exclusive Bonus: Back any hardware tier on Kickstarter and get 6 Months of Pro Subscription FREE.
Full Pen Functionality.What the Mac Gets.
A local tablet with pressure, tilt, and buttons, plus the picture the pen is drawing on.
Paint, sculpt, and grade with 10-bit HDR and 4:4:4 lossless color.Powered by the USBridge streaming agent for pixel-perfect clarity and zero lag.
4:4:4 ColorFull-RGB color without sub-sampling blur. Crisp edges on lineart and text.10-bit HDRDeep blacks, vivid contrast, and a wide color gamut.Pro Agent
A remote Wacom appears as a local USB device on macOS.The official driver sees it natively: pressure, tilt, and Express Keys, with no software workaround.
Pressure & TiltPen pressure and tilt reach the official Wacom driver.Express KeysPad keys and pen shortcuts bind like a tablet plugged in directly.Wacom CenterWacom Center recognizes the tablet and can set pressure curves and shortcuts.
Flash any off-the-shelf ESP32-S3 in minutes.Use a board you already own for hardware USB passthrough on macOS. No need to wait for shipping.
Download FirmwareESP32-S3Any standard ESP32-S3 board can become the dongle.GitHubSource, build notes, and ready-to-flash binaries.
Paint, sculpt, and grade remotely with zero visual compromises.Powered by the USBridge Agent streaming engine with lossless color accuracy and ultra-low latency.
Pro Agent display and color
- 4:4:4 Uncompromised color accuracy.Full-RGB color without sub-sampling blur. Crisp edges on fine lineart and sub-pixel text, which matters in Photoshop, Illustrator, and color grading.
- 10-bit HDR Wide color gamut.Deep blacks, vivid contrast, and true dynamic range. Grade HDR in DaVinci Resolve or view Blender renders the way they look at the host.
- High FPS Local-like canvas response.Frame pacing with minimal encoder latency, so pen strokes and 3D viewport navigation stay smooth.
- Stylus sync Direct dongle integration.The streaming agent keeps the video in step with the ESP32-S3 dongle, so pressure and tilt meet the canvas without a lag.
Engineered for artists and VFX creators
Whether you are color grading in DaVinci Resolve, sculpting high-poly meshes in ZBrush, or painting fine details in Photoshop, the USBridge Pro Agent keeps the color and the pen input fluid in real time.
Connect a remote Wacom to macOS without a driver conflict.The ESP32 dongle emulates USB in hardware, so the Mac treats the remote tablet like one plugged in directly.
Key capabilities
- Native driver Wacom Center sees the tablet.Express Keys, pressure curves, and pen shortcuts are set the same way as on a tablet plugged into the Mac.
- USB emulation No kernel extension.The ESP32 dongle presents the tablet's own USB identity. macOS registers a real device on that port.
- Full input Pressure, tilt, and Express Keys.Pen pressure, tilt, the eraser, and the tablet's Express Keys come through to the official driver.
Flash any off-the-shelf ESP32-S3 in minutes.Use a board you already own for hardware USB passthrough on macOS.
Build it yourself
- ESP32-S3 Use any standard board.The firmware turns a normal ESP32-S3 into the USB dongle macOS needs for a remote tablet.
- GitHub Source and binaries.Source code, build notes, and ready-to-flash binaries are on GitHub.Download Firmware
- Web Flasher No extra tools.Flash the board from Chrome or Edge over WebSerial. ESP-IDF and the Arduino IDE are not required.
Wacom on a remote Mac: frequently asked questions
Does a Wacom tablet work on a remote Mac with the original Wacom driver?
Yes. The ESP32-S3 dongle in the Mac presents the remote tablet's own USB identity, so macOS registers a real tablet and Wacom Center sees it. Express Keys, pressure curves and pen shortcuts are set up the same way as on a tablet plugged into the Mac. No kernel extension is needed.
Why does macOS need a dongle for a remote tablet?
macOS has no native software path for USB passthrough. USBridge emulates the USB device in hardware: a $10 ESP32-S3 dongle on the Mac receives the tablet over the network (USB/IP) and plugs it in as if it were attached directly.
Do pen pressure, tilt and the eraser work?
Yes: pressure, tilt, the eraser and the tablet buttons. Pen pressure and tilt for graphics tablets are a Pro plan feature of the USBridge agent ($8 per month).
Which tablets are supported?
Wacom, Huion, XP-Pen and other drawing tablets. Wacom tablets keep their own driver, so Wacom Center sees them.
Is the dongle firmware open source?
Yes. The ESP32-S3 firmware is open source on GitHub (USBridge-Technologies/USBridge-Remote, folder esp32-acm). You can flash your own ESP32-S3 board or buy the pre-flashed $10 dongle.
The Mac does not recognize the tablet. What should I check?
On macOS set Allow accessories to connect to Always. Each attached tablet looks like a new USB device, and the trust prompt can block it before the driver binds.
See also: remote USB passthrough for gamepads, MIDI and any USB device, the USBridge agent with the Pro plan for pen pressure and tilt, the USBridge client and USBridge KVM hardware.
On macOS, set Allow accessories to connect to Always. Each attached tablet looks like a new USB device, and the trust prompt can block it before the driver binds.