Guys I've used WD ultra but the speeds are not that good, its the Passport(without the ultra) which has good read and write speeds but it is costly right now on fk
OP can go for Transcend StoreJet 25M3 2.5 inch 1 TB External Hard Disk if he is looking for durability as it says it is shock proof(I don't know any better)
- - - Updated - - -
For rma and all WD is recommended but the ultra has just average read and write speeds