Features: brand new and high quality. 12V-24V 5.5x2.5mm input,LED display the output voltage,with ON OFF Switch,5.5x2.5mm port output is 12V-24V adjuastable,USB output is 5V, can powered 2 devices at the same for time,output power 65W,Suitable for laptop all in one PC,cellphone tablet wifi Router modem LED Strip CCTV Camera and more 5V 12V-24V device. 5.5x2.5mm plug is Inner Positive(+), Outer Negative(-),When charging the laptop, the output voltage needs to be adjusted to the same as the original charger output voltage. Internal battery capacity: 3.7Vx15000mah=55.5Wh; (Built-in 6 2500mah batteries). The UPS power supply is: output voltage adjustment range 12V-24V, you need to use a small screwdriver to adjust the voltage of 5.5x2.5mm, USB output is QC3.0 Fast charging; input 12V-24V. There is a small switch next to the UPS input port to control the internal battery, ON to open, OFF to close, open to start the battery output, and close to close the internal battery output. When the external power supply is cut off, it will automatically switch to battery power supply, and the switching for time is 0 seconds. Specifications: Item Type: UPS Uninterrupted Backup Power Supply Material: Metal+Plastic Color: Silver Capacity: 15000mAh,55Wh Size: 15.3x6.8x4.1cm 5.5x2.5mm female input: for DC 12V-24V 5.5x2.5mm male output: for DC 12V-24V(adjutable) QC3.0 USB port output: for DC 5V/3A 9V/2A,12V/1.5A max Power cable length: 100cm Package Includes: 1 x UPS Uninterrupted Backup Power Supply 1 x 5.5x2.5mm male to 5.5x2.1mm male power cable note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.