The Western Digital WD Portable My Passport 320GB Micro USB to USB-A WDBAAA3200ABK is a compact and portable external hard drive designed for easy data storage and transfer. With a storage capacity of 320GB, this HDD is perfect for keeping a large amount of files and documents organized. The USB interface allows for quick and seamless connectivity to a variety of devices, making it a versatile and convenient storage solution for on-the-go use. The My Passport product line from Western Digital is known for its reliability and durability, ensuring that your data is safe and secure.