This Genuine 4-Pin LACIE ACU057A-0512 Hard Drive AC DC Adapter Power Charger Supply is perfect for those in need of a replacement power supply for their LaCie hard drive. It is compatible with all LaCie brands and is ideal for use with laptops and desktops. This power supply is an AC DC adapter type, making it versatile and convenient to use. It is specifically designed to meet the power requirements of LaCie hard drives, ensuring optimal performance and longevity. Don't miss out on this essential accessory for your LaCie hard drive!