Fitbit Alta Charger, Vastar Replacement USB Charging Cable for Fitbit Alta Smart Fitness. Specifically designed for Fitbit Alta Clip Design: Perfect Compatible with the Fitbit Alta Tracker. Voltage Regulator (PTC) Inside: Prevent your Fitbit Alta from being damaged by overcurrent when Connected to USB Power Source on PC, Mac, Laptop or Notebook. Extra Charging Cable for the Convenient of using in Office, at Home or on Travel NOTE: Only Work for The Fitbit Alta, NOT for any other models. 100% New and High Quality. Easy to install and Charging