Waversa Systems WSmartHub 3.0 - Network Switching Hub & USB Hub 

The world's first audio-grade hub for high-end audio network players and USB-DACs that does not become a noise source and does not degrade sound quality.

Features:

• Jitter reduction by incorporating an audio-grade high-precision MEMS clock
• Unique design with no LED indicators on the LAN to radically eliminate noise generation
• The external power supply is used only for battery charging and LCD panel, while the switching hub and USB hub are powered by the internal battery to eliminate noise.
• Thorough pursuit of network and USB noise reduction
• USB noise filter
• Ultra-low impedance specification using lithium polymer batteries
• Noise-free operation with four lithium polymer batteries
• Aluminum uniboard chassis for vibration and heat dissipation
• Automatic charge/discharge system for 24/7 continuous use Information on front display
• Internal management via on-board ARM AP
• Firmware updateable via the Internet