Model No.:H25A Product description: 1.4 USB 2.0 high-speed ports 2.Fully compliant with USB 2.0 specification 3.Supports up to 127 high-speed devices 4.Backwards compatible with USB 1.1 5.Data transfer rate: 1.5/12/480Mbps 6.Individual port over　current protection 7.Friendly and ergonomic design, easy to carry