This coin-sized USB drive is the productivity gadget I didn't know I needed (and it's cheap)

• The ExtremeFit is available in storage options from 64GB ($15) up to 1TB ($110).
• It's positively tiny, with file transfer speeds of up to 400MB/s.
• When not plugged in, it can easily get lost in a drawer or backpack.

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Remember when the name "thumb drive" was an accurate descriptor? These days, external storage devices are increasingly tiny -- and nowhere is this more evident than in the new SanDisk ExtremeFit USB-C flash drive. 

It's definitely the smallest thumb drive I've tested, measuring 0.73 inches at its widest point and weighing just three grams. It looks more like a USB dongle for a mouse than external storage. 

Also: I found a portable SSD that's a dream travel accessory for iPhone content creators

The ExtremeFit's size isn't the only thing ...