UGREEN CM421 - 10 PORT USB 3.0 HUB (20482)

UGREEN CM421 – 10-Port USB 3.0 Hub (20482) Quick Troubleshooting

• No Power: The hub requires the included 12V 4A (48W) power adapter to function correctly. Using USB power alone or a lower-rated adapter may prevent the hub from detecting devices or supplying enough power. 
• Devices Not Detected: Connect the hub directly to your computer, reseat the USB cable, and try another USB 3.0 port.
• Slow Transfer Speeds: Ensure both the hub and computer are connected to a USB 3.0 port using the supplied cable.
• Disconnecting Devices: High-power peripherals such as external hard drives should be connected only when the 12V 4A adapter is in use.
• Windows Issues: Update your USB chipset drivers and restart the computer after connecting the hub.