“is this a u3 or u1 version? the picture shows u3 and the description shows u1”

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• it's a u3 per manufacturer / write speed, as per best buy pic. I had the same question - hum. Best Buy's site description/specs are unclear/incomplete. I bought it online for store pickup. I would have walked from the "pickup" desk directly to the "returns" desk if it hadn't been u3. It's working great on my LG celly. Thanks best buy

  Answered by The "Judge" 10 years ago

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• There are three kinds of Speed Classes, "Speed Class", "UHS Speed Class" and "Video Speed Class.". This Samsung 64GB PRO UHS-I SDXC U3 Memory Card certified as the following classes: Speed Class : 10 UHS-1 Speed Class: U3 Video Speed Class: 95MB/Sec(Max)

  Answered by DunD 9 years ago

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• This is a u3 version with claimed write read speeds of up to 95MB/s and write speeds of up to 90MB/s - I have zero issues with this card with 4k @ 30fps on my GoPro Hero 4 BLACK.

  Answered by AlStar250 10 years ago

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• It is U3.

  Answered by Kunalsn 9 years ago

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• This is a U3 card.

  Answered by austrij 9 years ago

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• It is most decidedly a U3 card. The U1s didn't work on my Moto G4 Plus phone.

  Answered by meblkbear35 9 years ago

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• it is UHS1-U3

  Answered by zerolink20 10 years ago

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• u1!!

  Answered by Birdman 10 years ago

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• This card is the U3 version.

  Answered by ajc7677 10 years ago

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• According to Samsung it is compatible with U3 as per their website

  Answered by Peterk 10 years ago

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