4 Port USB 2.0 HUB Compatible with USB 1.0 and USB 1.1 products Provide External Power Adapter Plug-and-Play Connects up to 127 devices No Driver Needed Key Features Full compliance with USB specification Rev. 1.1. Connects up to 127 devices in a tiered star configuration. Supports both full-speed (12M bps) and low-speed (1.5M bps) devices. Select between self-powered mode and bus-powered mode automatically. Per port over current detection, protection and power switch control. LED for power & connection status. Specifications 　 Chipset NEC Type USB Version 2.0 Speed Each Port 480M/bps Compatible USB 1.1 Device Compatible Feature USB 2.0 EHCI and USB 1.1 OHCI Compliant Supports Up to 127 USB Devices Provides 4 External Ports Power Over current protection, each port 500mA Connect USB-A connector Rajan 0835708489. R49