Features
  · Supports 1 upstream port and 4 downstream ports
  · USB 1.1 and 2.0 specification compatibility
  · Connect up to 127 devices
  · Support hi-speed (480 Mbps), full-speed (12 Mbps) and low-speed (1.5 Mbps) devices
  · Support OHCI (Open Host Controller Interface) and UHCI (Universal Host Controller Interface)
  · Ustream port: One B type receptacle
  · Downstream port: Four A type receptacles
  · Over current detection and protection
  · Autodetects power status