1、UPS Battery Backup: Small UPS power supply, suitable for various power outage scenarios, allowing your devices to still use the network during power outages. Built in 3.7V 15000mAh battery, providing lasting endurance. 2、Compatible Devices: This uninterruptible power supply is compatible with routers, modems, security cameras, smartphones, fax machines, fingerprint attendance machines, DSL, and other devices to meet more needs. 3、2 Input Methods: This mini UPS has 2 input methods, namely 5V 9V 12V DC interface with adapter (faster) or 5V 2A USB (slower). Equipped with standard USB port, which can also be served as a regular power bank. 4、Output Ports: This small uninterruptible power supply has 5V 2A USB output interface, 5V 2A, 9V 2A (maximum), and 12V 2A (maximum) DC output ports, supporting any current below 2A, which has strong compatibility. 5、Multiple Guards: This UPS battery backup provides multiple guard functions, including short circuit guard, voltage fluctuation guard, overcharge guard, overdischarge guard, and temperature guard, ensuring safer use. Item Type: UPS Power Supply Material: ABS Battery: 1 x 3.7V Polymer Battery, 15000mAh (included) Input Voltage: 12.6V/2A (Maximum) USB Output: 5V 2A (Maximum) DC Output 1: 5V 2A (Maximum) DC Output 3: 9V 2A (Maximum) DC Output 3: 12V 2A (Maximum) DC Output 4: 12V 2A (Maximum) Rated Power: 25.2W Application: Fingerprint Attendance Machine, Security Monitoring System, Access Control System, Cameras, Camcorders, Portable DVD Players 1 x UPS Power Supply 1 x Adapter 3 x DC5521 to 5521 Connecting Cable 2 x DC5521 Female to 5525 Male Head 1 x User Manual