Worry about services? Worry not! If the usb hub for pc you received has any problem (like stopped working), just contact us via Message and you will get full refund or a replacement immediately!. Tired of big and bulky hubs? Try our usb 2.0 hub! It is only half big of your phone and portable for anywhere, the most ideal gift for anyone who carries a laptop for business trip frequently!. Worry about quality? Worry not! Our usb hub for laptop with built-in smart chip to provides surge, current, overvoltage and short circuit protection to keep everything safe. Tired of messy working tables? Try our usb extender to organize all your peripherals like mouse, keyboard, flash drive, usb cable and camera to keep the desktop clean and tidy. Tired of not have enough USB port to use? Try this usb port hub to extend 1 usb port into 4 same ports! Plug and Play, compatible with all mainstream operating systems, sure it'll fit yours!. ?Important Note?: This product only have 4 extended usb ports and it do not compatible with Windows11. If you need more than 4 usb ports or need it for Windows11, DO NOT ORDER!!! Also, the ports on this usb hub are little bit tight, so it might be hard to plug in or might not fit large usb interface devices, please be awared! If the one you received is defective, please Message us immediately for full re-fu-nd!.