I have an external 3 TB WD drive for backup. I think it is shot so I want to replace it. I don't need a portable drive but if they are more durable I'd like to get one. The cost difference between portable and regular is negligible at Amazon. Are there any issues associated with using a portable HDD for a Time Machine backup?
There's a small difference. A portable HDD draws power directly from your computer while an external HDD draws power from a power adapter plugged into the wall. Durability will vary depending on quality. If you're using a portable device (such as a laptop) it is suggested to use a portable HDD so you don't have to plug it in elsewhere. It should also be noted that portable HDDs draw more power from your computer which may result in faster battery consumption on portable devices or worse performance on devices using a very little amount of power (such as a Raspberry Pi).
hello Mr please note that HDD stands for Hard Disk Drive there are two types of hard one fixed and other is portable there is no difference between them just portable give you facility to move it from one place to another for use it on other PC(externally) but if you consider SSD Solid State Drive yes here is difference SSD hard is more faster than HDD and also expensive than HDD.