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External drives with or without A.C. adapter

1K views 2 replies 3 participants last post by  fzabkar 
#1 ·
What are the pros and cons of external drives with or without A.C. adapter ?

Besides being more convenient without need to plug in A.C. adapter and more portable ?

Do they both function just the same ?


Thanks
 
#2 ·
Only the small 2.5" laptop size drives run off USB only the 3.5" drives need the external power due to the power requirements are greater than USB can provide. The smaller drives are more portable due to their size. They both function the same they are external hard drives. If the ext power supply dies then the drive is down until a replacement is bought.
 
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