Adafruit
Adafruit TS3USB30 1 to 2 USB Switch
· MPN: ADA5871
The Adafruit TS3USB30 is a 1-to-2 USB switch breakout board that lets you connect one of two USB peripheral devices to a single USB host port. Based on the T...
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The Adafruit TS3USB30 is a 1-to-2 USB switch breakout board that lets you connect one of two USB peripheral devices to a single USB host port. Based on the TI TS3USB30, it handles high-bandwidth USB 2.0 connections up to 480 Mbps — ideal when you need to switch between two USB devices without using a hub.
The upstream connection can be made via the onboard USB Type-C port or breakout pads. Two sets of power/ground/D+/D– breakout pads on either side connect to your USB peripherals. A single select pin (S) switches between port 1 (low) and port 2 (high), and an output enable pin can disconnect both.
Key Features
- 1-to-2 USB Switching – Connect one of two USB peripherals to a single host at a time
- USB 2.0 High Speed – Supports up to 480 Mbps bandwidth
- USB Type-C Upstream Port – Plus breakout pads for direct wiring
- Simple GPIO Control – S pin selects port 1 or 2; Output Enable pin disconnects both
- Onboard 3.3V Regulator – Powered from 5V USB with a disableable green power LED
- Four Mounting Holes – For secure installation
- Breadboard-Friendly – Header strip included (note: breadboard use may limit speeds to 12 Mbps)
Ideal For
- Switching between two USB peripherals without a hub
- Embedded systems with multiple USB devices sharing one host port
- Test fixtures that need to swap USB connections programmatically
- Projects requiring GPIO-controlled USB routing
Package Contents
- 1× Adafruit TS3USB30 1-to-2 USB Switch Breakout (fully assembled)
- 1× Header strip
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- 3.3V regulator
- A 3.3V regulator is a power circuit that provides a steady 3.3 volts for parts that need that supply voltage. On a breakout board, it can let the sensor run safely even when the connected microcontroller or power source uses a higher voltage.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- Type-C
- USB Type-C (USB-C) is a small, reversible USB connector used for charging, power, and data transfer on many modern devices. A Type-C port or plug indicates the cable and charger connection needed to power, charge, or communicate with a device.
- USB 2.0
- USB 2.0 is a widely used wired standard for carrying both data and power between a device and a computer or other compatible host, with data rates up to 480 Mbps. It indicates the kind of port a device uses and that it should work with most modern and many older computers.
- USB host
- A USB host is the side of a USB connection that controls attached devices, like a computer talking to a keyboard or flash drive. This matters because most microcontroller boards are normally USB devices, so adding USB host support lets them use common USB peripherals.
- USB Type-C
- USB Type-C is a small, reversible USB connector used for power, data and sometimes video on many modern devices. The connector itself does not guarantee a particular speed or voltage, so check the supported USB version, data rate and whether it carries more than 5V via USB Power Delivery.
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Ts3usb30
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