Tronic TUSB4 A1 Guide De Démarrage Rapide page 23

USB-A
22 GB/IE
Direct current / voltage
This symbol means that the operating
instructions must be observed when using
the product.
CE mark indicates conformity with
relevant EU directives applicable for this
product.
This product equips with a USB Type A
input and 4 USB Type A output ports.
USB, short for Universal Serial Bus, is
an industry standard that defines the
cables, connectors and communications
protocols used in a bus for connection,
communication, and power supply
between computers and electronic
devices. It is currently developed by the
USB Implementers Forum, Inc.
Safety Information
Instructions for use