Hii friends I bought this hard drive recently from online market place and today I will share my experience with sagate backup pluse hard drive .first of all it is nice product and received me in nice condition . I registered on sagataes website the warrenty information and my 200 gb storage on one drive . data transfer speed of this hard disk from my laptop is arount 75-80 mbps on usb 3.0 this drive not required any drive power source and is very easy to use .light weighted and portable . it’s feel almost like a power bank . it’s user capacity is 1.81 tb and I am using this sageta from one week and it’s is working well . so you can buy this hard disk .