Adafruit CH334F Mini 4-Port USB Hub Breakout

The Adafruit CH334F Mini 4-Port USB Hub Breakout is a compact USB 2.1 hub breakout board featuring the CH334F chip, converting one high-speed USB port into four downstream ports. Ideal for embedded applications such as embedded Linux boards where multiple USB devices must be connected without bulky external hubs.

This breakout is designed for compact embedded usage with four mounting holes and no downstream USB connectors—just four 4-pin ports or headers for soldering connections. The upstream port is available as either 0.1" header or USB C. The board is supplied fully assembled and tested with extra header pins for breadboard use.

Perfect for users needing a small, embeddable USB hub without bulky cables or enclosures. Note: Downstream USB ports are not included on the board, and soldering is required to connect peripherals. For hubs with downstream USB connectors, consider other available Adafruit USB hubs.

• CH334F USB 2.1 hub chip with 4 downstream ports
• Supports USB 2.0 and backward compatible USB 1.1
• High performance MTT mode for full bandwidth concurrent transmission
• Port status LED indicators support
• Built-in crystal oscillator and PLL for USB PHY clock
• Enhanced 6KV ESD protection on USB pins
• Compact size: 31.6mm x 20.4mm x 4.8mm
• Lightweight: 2.9g

The product is RoHS 2 2011/65/EU and 2015/863/EU compliant.

Learn more and access the full guide on usage and details on the Adafruit Learning System.