What's the difference between blue,green and black desktop hard drive?

hi, every 1. What’s the difference between WD blue desktop hard drive, green desktop hard drive and black desktop hard drive? Which is the best? Thank you.

Hi, the link below should give you a good idea. 


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Hello mate,

They got different speeds, transfer rate, capacity, etc.

For me the best one is the black, but it always depend of your computer needs.