Combines MagSafe technology with inductive charging. Sealed system, free of exposed contacts. Simply hold the connector near the back of the Watch and magnets snap into place automatically. Cable diameter: Approx. 0.10 in / 2.6 mm Input voltage: DC 5V Output: DC 5V / 2.4A (Max.) Interface: 1 * USB Type-A connector Charger for Apple Watch Charger 2m/6.5ft Magnetic Charging Cable Charger for Apple Watch 2 3 1 38mm/42mm Magnetic Charging Cable for Apple Watch features a magnetic charging area and an integrated 2m braided USB-A power cable. It is compatible with both the 38mm and 42mm models of your Apple Watch. Charge your Apple Watch by connecting the integrated USB cable and your USB power adapter. It requires no precise alignment. You simply hold the charging area near the back of the watch, where magnets cause it to snap into place automatically. Compatibility: For Apple Watch Series 1, For Apple Watch Series 2 and For Apple Watch Series 3 (For Apple Watch, For Apple Watch Nike+, For Apple Watch Edition and For Apple Watch Sport models)