USB Extenders and Hubs

USB Extenders and Hubs

Can I use USB extenders or USB hubs with DISPLAX touch controllers?

Yes, but not all USB extenders or hubs are suitable for DISPLAX touch products.
Using the wrong type can cause unstable touch performance or communication issues.

USB Extenders – What You Need to Know

There are many USB extender types on the market. The most common are:

🔹 Passive USB Cables

  • No external power

  • No signal amplification

  • Limited cable length

⚠️ Not recommended for DISPLAX products beyond short distances.

🔹 Active / Repeater USB Extenders

  • Powered (external power supply or inline repeater)

  • Boosts USB signal

  • Supports longer cable runs

✅ Recommended option when an extender is required.

⚠️ Risks of Using Poor-Quality USB Extenders

Using incompatible or low-quality USB extenders may result in:

  • Poor or unstable touch performance

  • DISPLAX Connect becoming unresponsive

  • Electrical noise caused by signal degradation

Important: DISPLAX cannot guarantee proper operation with all USB extender models.
Always test USB extenders before final installation.

USB Hubs – Important Considerations

USB hubs may also affect touch performance depending on their quality and power delivery.

🔹 Unpowered USB Hubs

  • Draw power from the host PC

  • Easily overloaded

⚠️ Not recommended for DISPLAX controllers.

🔹 Powered USB Hubs

  • External power supply

  • Stable voltage and signal

✅ Recommended when a hub is required.

Best Practices When Using USB Hubs

  • Use powered USB hubs only

  • Avoid using all available ports on a single hub

  • Distribute devices across multiple hubs if needed

  • Keep USB cable lengths as short as possible

DISPLAX-Tested USB Equipment

The following devices have been tested and validated with
DISPLAX TILE, ULTRA, FIT, and DUALTOUCH products:

💡 Using tested equipment significantly reduces the risk of signal loss and instability.

Additional Technical Advice

  • USB issues often mimic EMI or connection problems

  • If touch becomes unstable, test with a direct USB connection first

  • Avoid routing USB cables near power supplies, inverters, or high-current lines

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