WD iTB 2.0 not compatible with macbook air


I bought external hard drive cap. 1TB having S/N: [Deleted] in year 2010 from Bestbuy USA, it has USB of 2.0.

Now I have bought macbook air which has only 3.0 usb ports and my drive is no more compatible with my new notebook.

Please suggest if anyone has same kind of problem or if there is any solution of it because my all data is stored in my drive. 


Even when the laptop has ports for USB 3.0 they are backwards compatible to 2.0.

Check if the drive appears under Disk Utility.