Note: This cable is USB A to MICRO USB, NOT USB C or TYPE C.Every cable WILL NOT provide you with fast charge or quick charge alone, you will hold a power block support fast charge and a phone capable of the same.It WILL NOT fit those phones with Type C Port and Lightning Port. QUESTION & ANSWER: Q1: Are both ends Micro USB ?A1: No, it's micro usb to standard usbQ2: Does it support QC 3.0 quick charge ?A2: Yes,it does!The Micro USB Cable Enable Charging Speed Up to 2.4A, Charging Faster Work Better for Tablets and Quick Charge Devices.Q3: Do these cables SAFE ?A3: Yes, they have the 56k pull-up resistors to keep a safe fast charging. COMPATIBILITY: SamsungGalaxy S7 Edge/S7/S6 Edge/S6/S4/S3; Note 5/Note 4/Note3/J3/J7;Samsung Tab 4/Tab 3/Tab A/Tab E/Tab S2/Tab S/Tab ProLG G4/G4 Stylus/G3/G3 Stylus/G2/V10/K10Nexus/HTC/Motorola/NokiaKindle/PS4/PS VitaAlcatel Pixi 3,Pixi 4,Alcatel Idol 4,Idol 4SAlcatel U3/A30/A3 Plus 5011 A/POP 4SAlcatel 1,Alcatel 1C 5009A/1S 5024JOther Micro USB devices