USB Cable Features:
Input:5V 2.4-4A
Output:8V
Conversion efficiency:92%  (DC-DC Efficient conversion rate)
USB Plug Specifications:USB2.0
length:105cm
  QC3.0 USB Power Adapter Features:
Input :100-240V/AC
Output:5V 3A / 9V 2A / 12V 1.5A 
  note:
1. In order to optimize your camera's work, use high-quality mobile power, mobile power needs to output 5V 2.4-4A. When the power or current is insufficient, you can't shoot. Please choose at least better current.
2. The mobile power has an automatic sleep mode and is turned off.
3. Do not use computer USB, because the computer USB 2.0 output voltage is mostly 5V, but the current is less than 500mA current.
4. Some mobile phone/tablet USB charger and resistance recognizer, do not know the camera, the current can not meet the requirements, so it is not recommended.
5. Use the camera for a long time to set the camera standby time to the maximum standby time.
Compatible with:
For Nikon Z50,ZFC 
Package :
1 x DC COUPLE:EP-5G(DC pin 4.0*1.7mm)
1 x USB adapter Cable
1 x QC3.0 USB Adapter