Expand the USB port on a PC or laptop Plug and play The usb port extender adapter can help you connect up to 4 USB devices to a PC or laptop, such as external hard drives, USB flash drives, mice, keyboards, and more USB devices. Safe and durable design The built-in smart chip avoids overcurrent, overvoltage, short circuit and overheating. The aluminum shell has a good metal texture, which can provide better heat dissipation. Portable Slim and lightweight design, it can be easily placed in any bag or briefcase of the laptop, small and light, it is the ideal size for business travel/travel/work. Note: In order to stabilize the connection, the total current of the devices connected to the hub must not exceed 5V 900mAhGift Package Box: 1 x 4 Port USB 3.0/2.0 Hub