Now a days Digital Data Storage is most important things for keep our photos, video, files etc. We can be store this data in our PC or Laptops. But those are not portable things. So we need a memory device which will store our huge data and we can take it any where anytime and use those data in any device. An External Hard Disk do all this work for us. It is compact, easy to carry and easy to use and also its does not need any external power source. Before buying a External Hard Disk Some important point I will tell you.
1.Always prefer a branded Product It will long lasting and also give good performance.
2.Select capacity as your need and budget.
3.Check the RPM(Rotation Per Minute). Higher RPM give better performance.
4.Always check connectivity type. USB 2.0 or USB 3.0. USB 3.0 has better transfer speed.
5.Before buy Check the price in online/offline.