Should I buy WD my passport for MAC or my passport ? for my mac book pro

The Apple store representative was correct about the format.

As far as the respective HDDs you mention I cannot give you any empirical information since I have no WD HDDs in my stable. Seagates, Toshibas and Hitachi's. are the ones that I have and all are still spinning.

There are WD cheerleaders and detractors as is for all brands. Being an inherently frugal person I would go for the less expensive one all other things being equal. (Then the purchase of an Apple MBP is not act that a real frugal person would do.)

You might look on the Internet for better prices for the exact same product. OWC, Newegg and Amazon should be investigated.

Ciao.

A quick look at the Newegg and Amazon websites shows only one WD 2TB external HDD. The prices are $180 and $150 respectively and both have USB 3 connectivity. If your MBP is a 2012 model, that would be a wise selection due to the faster data transfer speeds. It may be the 'cheaper' HDD has only a USB 2 capability.

I'm guessing now and you would have to provide me with specific model nos. so that a definitive assessment can be made.

Ciao.

You are correct about the format differences. I wish you the best of luck with your new acquisition.

Ciao.