DC5V to DC9V 12V Step-up USB Adapter Cable USB Power Boost Line 5.5*2.5

Features:
Brand new and high-quality
Made by ultrasonic pressing
One line with two voltages, can switch between 9V and 12C at will

Specifications:
Input voltage: DC5V 1A-2.1A (compatible with all 5V power supply devices)
Output voltage: DC 9V&12V (two voltage variants)
Output power: approximately 6W-7W
DC plug: 5.5 * 2.5
Line length: 1 meter circular line

Specifications:
1 x Conversion line