# BigTreeTech K-Hub V1.0

> 4-port USB 2.0 hub for Klipper-based 3D printers with dual 24V/5V power input support. Expands a single USB host port to connect multiple peripherals like ADXL345, EBB boards, and cameras simultaneously.

## Quick Facts

- **Brand:** BigTreeTech
- **Board Type:** usb-hub
- **Price:** ~$17.99
- **Product Readiness:** consumer
- **CPU:** USB 2.0 Hub Controller
- **CPU Architecture:** No
- **CPU Cores:** 1
- **RAM:** No
- **Flash:** No
- **USB:** 4× USB-A 2.0 downstream; 1× USB upstream
- **Power:** DC 24V or 5V USB input
- **Operating Voltage:** 5V
- **SD Card:** No

## Open Source

- **Firmware:** Yes
- **Schematics:** Yes
- **PCB Layout:** Yes

## Compatible Firmware

Klipper

## Use Cases

- 3d-printer
- klipper
- usb-expansion

## Components

- **USB 2.0 Hub Controller** (hub): USB 2.0 hub controller providing 4 downstream ports from a single upstream host connection — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fbigtreetech%2FK-Hub&ref=openhardware.directory&product=bigtreetech-k-hub-v1-0&source=md-export)

## Protocols

- **USB 2.0**

## Description

The BigTreeTech K-Hub V1.0 is a 4-port USB 2.0 hub purpose-built for Klipper 3D printer setups. It solves the common problem of needing to connect multiple USB peripherals — such as accelerometers, CAN bus adapters (U2C), webcams, and toolhead boards — to a single USB host port on an SBC like a Raspberry Pi or BTT Pi.

The hub supports dual power input: 24V from the printer's PSU or 5V USB, making it flexible for different wiring configurations. Its compact design and standard USB hub architecture ensure broad compatibility with all Klipper-supported devices. The product is priced at $17.99 making it an accessible upgrade for any multi-peripheral Klipper printer build.

Design files are published in the BigTreeTech GitHub organization. The K-Hub is especially useful in CoreXY builds with toolhead CAN boards that still require additional USB accessories on the host side.

## Where to Buy

- [BIQU Equipment](https://openhardware.directory/r?to=https%3A%2F%2Fbiqu.equipment%2Fproducts%2Fbigtreetech-k-hub-v1-0&ref=openhardware.directory&product=bigtreetech-k-hub-v1-0&source=md-export) — $17.99

## Resources

- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fbigtreetech%2FK-Hub&ref=openhardware.directory&product=bigtreetech-k-hub-v1-0&source=md-export)
- [product](https://openhardware.directory/r?to=https%3A%2F%2Fbiqu.equipment%2Fproducts%2Fbigtreetech-k-hub-v1-0&ref=openhardware.directory&product=bigtreetech-k-hub-v1-0&source=md-export)

## Tags

`usb-hub`, `klipper`, `3d-printer`, `bigtreetech`, `open-source`, `usb-2-0`, `peripheral-expansion`

## Images

![BigTreeTech K-Hub V1.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/bigtreetech-k-hub-v1-0/5d76082b2856.jpg)
![BigTreeTech K-Hub V1.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/bigtreetech-k-hub-v1-0/fab91a1c5212.jpg)
![BigTreeTech K-Hub V1.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/bigtreetech-k-hub-v1-0/fb887cc74469.jpg)
![BigTreeTech K-Hub V1.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/bigtreetech-k-hub-v1-0/7520bd121c7e.jpg)
![BigTreeTech K-Hub V1.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/bigtreetech-k-hub-v1-0/aa61b9397a39.jpg)
![BigTreeTech K-Hub V1.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/bigtreetech-k-hub-v1-0/36440abd5002.jpg)
![BigTreeTech K-Hub V1.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/bigtreetech-k-hub-v1-0/13f8c9bfdb91.jpg)
![BigTreeTech K-Hub V1.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/bigtreetech-k-hub-v1-0/169d6cf43654.jpg)

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