This 90W power supply is specifically designed for Lenovo laptops and devices that require a compatible power connection. With an output of 20V at 4.5A, this power supply provides reliable charging and operation for compatible Lenovo systems. The power supply features a standard AC input of 100-240V at 50-60Hz, making it suitable for international use with appropriate plug adapters. Made from durable materials, this power supply ensures consistent voltage regulation to protect connected devices from power fluctuations. The compact design measures approximately 15 cm in length, 7 cm in width, and 3 cm in height, with a weight of about 350 g for easy portability. The power supply includes a standard Lenovo-compatible DC output connector that ensures a secure connection to compatible devices. This replacement power supply offers essential functionality for users who need a reliable charging solution for their Lenovo laptops while traveling or as a backup power source. The power supply operates within standard temperature ranges of 0-40°C during use and -20-60°C during storage. For optimal performance, please check compatibility with your specific Lenovo device model before use, as power requirements may vary between different laptop series and configurations.