The New Link 4 Port USB Hub, is the ideal hub to both power your Raspberry Pi and expand the number of USB ports it has . Fully tested for compatibility, the 4 port hub lets your connect up to four USB devices to your Raspberry Pi, and includes a 5v power adaptor, for use with high powered devices.
This USB hub DOES NOT back-feed power in to the Raspberry Pi's USB ports. Poor quality hubs will back-feed power into the Raspberry Pi USB ports. Not only can this blow the poly fuses on the Pi and cause reboots, it can also cause bad writes on to your SD card and corrupt OS installations.
Simply put, this hub is AWESOME, and probably one of the best 4 port hubs to use with the Raspberry Pi.
Fully tested for compatibility with the Raspberry Pi
Can provide power to your Raspberry Pi.
Fully CE Approved Hub and Adaptor (No bursting into flames)
Protects your Pi by not back-feeding current in to your Pi's USB ports.
Supports over-current protection
Supports high speed (480Mbps), full speed (12Mbps) and low speed (1.5Mbps) transfer rates
Truly plug and play automatic system configuration
Chains up to 127 USB devices
USB and ACPI compliant.
Includes a 5V 2A power supply. Input: 220-240V. Length:1.5m (5.5mm/2.1mm Plug)