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SanDisk Extreme Pro 128GB SDXC UHS-I Card - $68.27 USD (~$90.07 AUD) Delivered @ Amazon US

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I have looked around online for a while and this is(as far as I have been able to find) the cheapest 128GB Extreme Pro out there where you are guaranteed to get a real SanDisk card.

It is a good card if you are planning to record videos etc. The writing speed will prevent any issues with throttling.

The V30 marking on the card stands for a minimum writing speed of 30 MB/s

Price History at C CamelCamelCamel.

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closed Comments

  • Can it be used on Nintendo switch?

  • +1

    No switch uses micro sd this is a sd

    Same card on ebay using code P5OZZIE for $85.45
    From Aus

  • i don't understand….

    on the title (and on Amazon) it says "UHS-I". on the card (image) it says "U3". Am I missing something? Someone please correct me

    • +3

      UHS-I is the Bus Interface Specification, whereas U3 refers to the Speed Class.

      In short, the Bus Interface is a physical attribute, where the physical connections between the SD card and the port are of a certain type (UHS-I is a single row of pins). The Speed Class designates the minimum write speed (U3 means 30MB/s).

    • +3

      They are two different specs, and it's stupid that they both start with "U". Causes a lot of confusion.

      UHS specifies the communication interface speed. UHS-I (Roman number) can do up to 104Mbytes/sec transfer speed. UHS-II and UHS-III are faster, but have a redesigned contact arrangement, with a second row of electrical contacts. UHS-II cards are rare at the moment, as few cards need the higher communication speed - the flash itself doesn't go fast enough to need a faster communication interface. UHS-III cards don't exist yet.

      U1,U2 and U3 are how fast the flash can be written and/or read. This speed is the limitation of the flash itself, not the communication interface. Like the old "Class 10" speed indicator, but for some unknown reason they decided not to just say "class 30", they decided to say "Class 10 U3".

      Both of these specs are written on the card. The UHS spec is written without the "UHS" part, so you'll see "I", "II" or "III". The U1, U2 or U3 spec has the number written inside the "U".

      Just to be even more confusing, there's also a "V" rating. "V30" means the same as "U3", but they write both on the card.

      Detailed info here:

      https://en.wikipedia.org/wiki/Secure_Digital#Ultra_High_Speed_(UHS)_bus

      https://en.wikipedia.org/wiki/Secure_Digital#Speed_class_rat…

      Edit: I was too slow typing. Mathnerd beat me to it.

    • thanks guys. cleared it up for me very nicely

  • Is U3 speed good enough for Surface Book? Or will it be too slow for running apps?

  • +2

    Better to price beat eGlobal's price $73 + $15 delivery at Officeworks and get it for $88.35 or ($69.35 depending on the team member's incompetence). Alternatively price beat MSY's price $94 if there are any disputes.

    Cheaper and don't have to wait for delivery.

  • Great card, one of the fastest UHS I cards out there.

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