Come and see our amazing products. This usb port expander for laptop provides stable performance for 4 ports work simultaneously without any pressure and the temperature keeps within moderate range.T-Sound 4-port USB hub applies to various devices: laptop, pc tower, flash drive, keyboard, mouse, card reader., cellphone OTG adapter, printer, camera, USB fan and USB cables. Pls confirm with us about the packing info, stock status and exact production time before placing your orders.