If you don't have enough space, to download OS X El Captain, could you use this to help download OS X El Captain?

I would like to download OS X El Captain, but I do not have enough space on my Mac to download it. Could I use this to give me more space to download it?

LaCie Porsche Design P'9223 USB 3.0 Mobile Hard Drive

LaCie Porsche Design P'9223 USB 3.0 Mobile Hard Drive

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