Western Digital is a popular hard drive producer, having been around for twenty years. Looking at other types of hard drives is a thing you might want to consider, although this hard drive is very dependable. One terabyte is a huge quantity of room. I don't even know how you can fill that hard drive completely. 500 gigabytes is what notebooks and computers are equipped with generally, so a one terabyte hard drive can easily back up everything you need and more. You could store 1, 000 standard movies in that amount of space. This is not the biggest size though; there are hard drives out there available to purchase that have 2TB, 3TB and even 4TB. Of course, it is pointless to have all that extra space in case you are not using it, and I think that for most people 1TB is certainly enough space. The physical size of the hard drive is also remarkable, as it can fit into your pocket making it ultra portable! external hard drive buyer's checklist The hard drive's size is only a small component of the whole product. You should search for a hard drive that offers a fast transfer speed. You will be able to send your files more rapidly with USB 3. 0. Reported by Western Digital, a 2 hour high definition movie would take only 5 minutes to transfer with USB 3. 0 instead of 13 minutes with USB 2. 0. That is certainly an advancement and one truly worth noting. If you cannot use USB 3. 0 yet, you'll still have the ability to use 2. 0. You can additionally power the actual product with the USB plug, ruling out the need for an extra power supply.