KT618 Mini Flexible USB Magnifying Glass with 18 LED Lights Small Laptop PC Desk Lamp for Reading Working 4 USB 1.1 ports a type female connectors downstream 1 USB b type male connector upstream with a cable. Fully compatible with all USB devices. Compliant with USB (Universal Serial Bus) Rev1.0. Support both full-speed 12Mb/sec and low-speed 1.5Mb/sec transfer rates. Indiviual port over-current protection.