Flash Card Machine - Many people uses this being a system of backup, while others will utilize it as the principle storage device for system - whether it is a phone or even a netbook - installing their programmes and applications onto it after which running them straight from your card without any have to ever remove it. An alternative kind of additional storage that many people use could be the portable hard drive. These are very different devices that plug into a computer or even a laptop normally by way of a USB cable and that way enable that you backup usually the entire contents of one's computer. This may be the most expansive form of external capacity, nonetheless it is much less flexible as a SanDisk Extreme Pro CF or another types of SD card. While a portable hard drive provides more space for the storage, it also requires installation and a USB port. With a SanDisk Extreme Pro CF you can find that you can be up to any computer that you just encounter, after which just insert the charge card and start transferring files - very useful for working about the go, for uploading documents, and sharing files with people. At the same time many devices simply will not be able to work with a portable hard drive. For example if you need to add extra storage to a phone or to a tablet, then you may not have the ability to perform this unless you've an SD card since they don't have USB jacks or software to own an external hard drive. Of course a SanDisk Extreme Pro CF is also much more portable than a portable hard drive. While you can easily store a portable hard drive in the bag or inside a pocket, unlike an SD card they won't just fit in your wallet, and you'll glance at the slight weight. They might also bang around a bit which isn't much great for them. Although some are classified as portable hard drives then, they are more just external hard drives, meaning which they are best used plugged in next on the computer and kept a single place to back up files. An SD card however is better used being carried around and quickly transferring files between different devices. In case you need more space - you are able to always just purchase more SD cards too. So they will really both have different uses, and since they both provide storage that is really as far as the similarities go. Thus if you want to contain the absolute best storage both for that back and the transfer of files - then you definitely must have both systems setup for use. This way you will likely be able to use your flash card whenever you must transfer information, but could ensure that it stays more permanently stored on the portable hard drive for files that need a very secure system of backup or which are too large to store other ways. You can find other forms of storage you can use too which too may offer a range of different benefits.