Samsung Electronics has announced the world's first UFS removable memory card based on the JEDEC Universal Flash Storage (UFS) 1.0 Card Extension Standard for mobile devices. 

So, what actually is UFS?

UFS or Universal Flash Storage is a new standard that has a faster read/write speeds compared to the existing SD standard.

Samsung claims read speeds of 530MB/s and write speeds of 170MB/s that are far and above that of even the fastest sd cards and are similar to the read speed of the most widely used SSDs now a days

As the design goes, it looks similar to microSD at first glance but can be distinguishable by the fins on the side which are differently shaped. More importantly, the connectors on the back are in a totally different position.

So, the ufs cards will not be compatible to the existing devices supporting micro sd cards

And the cards will be  available in 32/64/128/256GB variants.

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