If it's for backup purposes, the converter is fine. If you use it for moving data around, the portable drive is better, becausepasanlaksiri said:but machan external hd drives r very expencive ne. 40GB = 10,000/= or unlimited = 2000/= What do u chose?
1. It's much convenient (less wires, small size)
2. Normal hard drives are not meant to be moved around.

in simple words a casing which can hold a 2.5 or a 3.5HDD,also u can carry the HDD
