Portable storage device

A portable storage device (PSD) is a small hard drive designed to hold any kind of digital data. This is slightly different from a portable media player, which stores and plays music and movies.

Some are fixed size hard drives of 256GB, 320GB, etc. Newer units are expandable using 2.5" laptop hard drives, allowing for an unlimited storage capacity, which is useful for video and images.

单词	External storage device
释义	External storage device 英语百科 Portable storage device A portable storage device (PSD) is a small hard drive designed to hold any kind of digital data. This is slightly different from a portable media player, which stores and plays music and movies. Some are fixed size hard drives of 256GB, 320GB, etc. Newer units are expandable using 2.5" laptop hard drives, allowing for an unlimited storage capacity, which is useful for video and images.
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External storage device

Portable storage device