unbranded 4 USB A Ports Adapter Car Fast Charger

4 USB A Ports Adapter Car Fast Charger. Charge up to 4 devices simultaneously! This 4-port USB car charger works with MP3, smartphone and tablets It provides a specialized port for iOS, Android, and QUICK-CHARGE (QC) v3.0 charging, as well as one generic 2.1 amp port. QC charging will have your smart QC capable device select one of three optimal voltages and amp for the best charging rate. QC v4 charging can fully charge MOST devices in less than 1 hour. Specifications Connectors: 4 USB A Female 1 Port iOS, 1 Port Android, 1 Port QC 3.0, 1 Port Standard Input Voltage: 12-24vDC - suitable for aviation Output QC Port (Device auto-selects): 5v/3.5A, 9v/1.8A, 12v/1.7A Output Remaining Ports: 5v/3.5A Attractive 2 tone gray and black finish Built-in over current and short-circuit protection