My High-speed USB device randomly drops off or (falsely) disconnects from the Hub downstream facing port.
![Impedance matching analysis and EMC validation of a low-cost PCB differential interconnect | Semantic Scholar Impedance matching analysis and EMC validation of a low-cost PCB differential interconnect | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/4144a05684a59a48d43706a063151bac7a9d5678/1-Figure1-1.png)
Impedance matching analysis and EMC validation of a low-cost PCB differential interconnect | Semantic Scholar
![USB trace impedance calculations, with termination resistors - Electrical Engineering Stack Exchange USB trace impedance calculations, with termination resistors - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/Fcnct.png)
USB trace impedance calculations, with termination resistors - Electrical Engineering Stack Exchange
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Intona Professional IDS+VNA Impedance Controlled USB cable – Vector Network Analysis (VNA) tested/measured and individually serialized USB cable | Kitsune HiFi - HoloAudio USA
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Should I consider my design as Stripline in USB differential pair impedance calculation? | All About Circuits
![Amazon.com: USB C to 3.5mm Headphone Jack Adapter 32bit DAC-Amplifier for High impedance Headphones-Premium Sound Enhancer for Galaxy Z Fold4 S22 Pixel 6XL Switch ChromeOS Win7 : Electronics Amazon.com: USB C to 3.5mm Headphone Jack Adapter 32bit DAC-Amplifier for High impedance Headphones-Premium Sound Enhancer for Galaxy Z Fold4 S22 Pixel 6XL Switch ChromeOS Win7 : Electronics](https://m.media-amazon.com/images/I/61tlssMWDYS.jpg)
Amazon.com: USB C to 3.5mm Headphone Jack Adapter 32bit DAC-Amplifier for High impedance Headphones-Premium Sound Enhancer for Galaxy Z Fold4 S22 Pixel 6XL Switch ChromeOS Win7 : Electronics
![pcb design - Understanding USB Differential and Single Ended Impedance Requirements - Electrical Engineering Stack Exchange pcb design - Understanding USB Differential and Single Ended Impedance Requirements - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/JQQvb.png)
pcb design - Understanding USB Differential and Single Ended Impedance Requirements - Electrical Engineering Stack Exchange
![Analysis of Technology Standards of Cable and Connector& the Certification Test Points » Allion Labs Analysis of Technology Standards of Cable and Connector& the Certification Test Points » Allion Labs](http://blog.allion.com/wp-content/uploads/2014/05/USB3.0USB3.1.jpg)
Analysis of Technology Standards of Cable and Connector& the Certification Test Points » Allion Labs
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USB line impedance seems to be really bad · Issue #41 · UltimateHackingKeyboard/uhk60v1-electronics · GitHub
![Do USB Data Wires (D+/D-) have 90 ohm differential impedance and single ended 45 ohm impedance to ground and if so how is this made? - Electrical Engineering Stack Exchange Do USB Data Wires (D+/D-) have 90 ohm differential impedance and single ended 45 ohm impedance to ground and if so how is this made? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/VHy21.jpg)
Do USB Data Wires (D+/D-) have 90 ohm differential impedance and single ended 45 ohm impedance to ground and if so how is this made? - Electrical Engineering Stack Exchange
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