Originally Answered: What is the difference between tumour and cancer? A tumor can be benign or cancerous. A benign (non cancerous) tumor is a mass of cells that lacks the ability to invade neighboring tissue.
While portable slim hard drives are meant for carrying around in a backpack or laptop bag, all but the largest 32 TB and 64 TB external hard drives (featured here above) are still small enough for easy transport in a backpack or briefcase.
In fact, if you wanted to, you can turn an internal hard drive into and external hard drive with an inexpensive hard drive enclosure. Enclosures have protective metal or hard plastic casings and SATA-to USB 2.0 or USB 3.0 converter cables that make an internal drive primed for external use.