QIBOX Replacement Charging Cable Charger for Fitbit Surge Fitness Superwatch Watch Band Smart Watch Premium Quality One Year Warranty Charge (Black) QIBOX Authentic Charger for Fitbit Surge Fitness Superwatch Different from other unauthentic poor quality charging cables, it has a PTC inside to prevent your Fitbit Surge from being damaged by overcurrent. Its fully functional just as the original cable. Fits perfectly for your Fitbit Surge Superwatch Made of ROHS materials. Premium quality guaranteed.