How fast is SDXC on the Air?

Discussion in 'MacBook Air' started by rbf1138, Jun 15, 2012.

  1. rbf1138 macrumors 6502

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    Dec 22, 2007
    #1
    I think I may buy a 128gb SD/SDXC card to store my music, but I'm wondering if it'll be fast enough so that albums play in Itunes without lag/hesitation. Anyone have any experience with this?
     
  2. ZBoater macrumors G3

    ZBoater

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    #2
    Yes, you can play music and movies off the SD card with no problem, but don't cheap out on the card. Get one that is at least class 6 and you should be fine.
     
  3. PBG4 Dude macrumors 68000

    PBG4 Dude

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    #3
    Apple's Tech Specs only confirm SDHC compatibility on 13" MBAs. SDXC compatibility is listed on MBPs with SD slots.
     
  4. rbf1138 thread starter macrumors 6502

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    Dec 22, 2007
    #4
    Can anyone confirm if SDXC's work in their 2012 13' Air?
     
  5. ZBoater macrumors G3

    ZBoater

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    #5
    Mine worked on my 2011 MBA. 64GB Ultra Sandisk.
     
  6. rbf1138 thread starter macrumors 6502

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  7. GBlansten macrumors regular

    GBlansten

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    #8
    Even if the Air uses the USB bus and has a max speed of 480 mb/second you don't have sdxc cards yet that can saturate it. I think the fastest sdxc cards read at 95 and write at 45 mb/s.

    Someone correct me if I am wrong.
     
  8. rbf1138 thread starter macrumors 6502

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    #9
    Hm, ok. I guess the thing is that 64GB SD cards and above have to be SDXC, correct?
     
  9. GBlansten macrumors regular

    GBlansten

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    #10
    Yes and use the exfat file system.
     
  10. ZBoater macrumors G3

    ZBoater

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    #11
    I just ran an benchmark on my 64GB class 10 Sandisk Ultra card on my 2012 MBA. 10MB/s write, 35MB/s read.

    By comparison my SSD was 400MB/s write and 450MB/s read.
     
  11. rbf1138 thread starter macrumors 6502

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    Dec 22, 2007
    #12
    As long as it'll play mp3s in iTunes ok I don't need SSD speeds.
     
  12. dona83 macrumors regular

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    Coquitlam, BC
    #13
    That's like a hard drive. Good enough.
     
  13. Cicatrix macrumors 6502

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    Feb 9, 2011
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    Phoenix, AZ
    #14
    hell, I use a sandisk extreme sd card to record two tracks of audio at a time straight from my DAW. basically I'm using the sd card slot as a mini recording drive. your more than good for what your trying to do.
     
  14. markelp macrumors newbie

    Joined:
    Jun 18, 2012
    #15
    Is there any indication of what bus the SD Card reader is using on the 2012 Air?

    The Extreme Pro SD Card from SanDisk is claimed to go "up to 95 MB/s" vs the "up to 30MB/s" of the Ultra SD Cards.

    Pricy at ~$300, but perhaps a more flexible option to add space to an MBA. I'm thinking Parallels or Boot Camp partition, media storage, etc.
     

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