They also have wireless hard drives which are a special edition 2TB external hard drives. Their most famous product, wd my passport, is an ideal choice for those who want backup along with an extra feature of encryption. Western Digital also has plenty of passport portable hard drives. They also have backup plus slim which is a USB 3.0 portable external drive. It supports fast data transfer with USB 3.0 connectivity. Seagate expansion portable hard drives are famous for their simple and high-speed storage. There are multiple vendors who offer ultra-slim and portable external hard drives for the compactness freaks. That’s why copying vulnerable data in some solid-state drives ( SSDs) has become the most common way of preparing a data backup. As the need for data security is increasing, external hard drives are providing a great opportunity for data backup. They are not only being used for temporary data storage, but one of their main purposes today is data backup. From the perspective of size, they are very small, but these small devices can store huge amount of data. External hard drives are one of the smart devices we have today. With the help of technology, we are creating smart devices which are smaller in size but in terms of performance, they are very effective. External Hard Drives – This is the era of technological advancements and immense generation of data.