Overview The USB-HUB-BOX is a HUB kit with Waveshare USB HUB HAT (B) Board inside. It is designed for Raspberry Pi Zero series, small in size, each cut-out of the case is exactly aligned with the connector. The ABS Enclosure with quality dull polish surface, well designed, nice & dust-proof. Features Designed for Raspberry Pi Zero, compatible with Zero series boards (Raspberry Pi Zero 2W/ 2WH/ Zero W/Zero WH/Zero) 4x extended USB ports, compatible with USB 2.0 / 1.1 Angle rounded design, smooth hand feeling, "simple snap" case lid Quality ABS material, dull polish surface, anti-fingerprint Comes with two different lids, changing as you like User Guide/Documentation: //bit.ly/3rMsEIi Package Content USB HUB HAT (B) x1 ABS case x1 Rubber feet 4PCS x1 Screws pack x1 FAQ Question:The Raspberry Pi does not recognize the usb device? Answer:Connect the USB HUT interface to the computer with a USB cable to see if the computer can recognize the USB HUB. If the module can be recognized it should work fine. Check whether the usb connector or the ejector pins are in poor contact. In addition, if the USB port of the Raspberry Pi ZERO is set to a wired network card, the USB HUB will not be recognized.