Do I need Thunderbolt 2 for a HDD Enclosure and 2560x1440 Display?

Discussion in 'Mac Accessories' started by Sirc, Nov 16, 2014.

  1. Sirc macrumors newbie

    Joined:
    Sep 9, 2009
    #1
    I just bought my 5k iMac and I'm looking at getting a 2 bay Thudnerbolt enclosure to put a BootCamp SSD and a storage HDD in.

    Currently I am using a 2560x1440 display on that port, but with an SATA 3 SSD and the display will I have any need to buy a Thunderbolt 2 enclosure or will I be ok with "plain old" Thunderbolt 1?

    I don't do any video editing, and the main reason for the drives will be to boot to Windows for 1 or 2 games and Time Machine backup. From what I've read is Thunderbolt 2 is mainly for editing 4k video and driving a display, which I will never do.

    I haven't been able to find a 2 bay Thunderbolt 2 enclosure and I will never need a 4 bay one, so I'd rather save the money if possible. Will I have any issues with just a Thunderbolt 1 enclosure?
     
  2. jdphoto macrumors 6502

    jdphoto

    Joined:
    Jan 13, 2014
    #2
    You should be fine the Thunderbolt 1 enclosure. I have a Late 2013 iMac and am powering a Thunderbolt Display & Thunderbolt 1 RAID array through the same Thunderbolt port (iMac -> HD Array -> Screen). I get great speed off the array (greater than 300MB/s) and the display works beautifully.
     
  3. Sirc thread starter macrumors newbie

    Joined:
    Sep 9, 2009
    #3
    So I picked up an OWC Mercury Elite Pro Dual and installed a SATA 3 SSD in it with a 1TB WD Green drive.

    I'm also getting speeds around 300MB/sec. The Thunderbolt enclosures are rated up to around 500MB/sec for single drive, I understand there's some overhead but only 300MB/sec seems low doesn't it?
     
  4. matreya macrumors 65816

    matreya

    Joined:
    Nov 14, 2009
    #4
    On this page http://eshop.macsales.com/shop/Thunderbolt/External-Drive/OWC/Elite-Dual-RAID

    it quotes speeds up to 442MB/sec, which would be the maximum speed of two SSDs in RAID 0... these enclosures are not as fast as the Thunderbay 4s.
     
  5. Sirc thread starter macrumors newbie

    Joined:
    Sep 9, 2009
    #5
    That's unfortunate considering the store I bought it from listed performance up to 1250MB/sec over Thunderbolt, which I would think is RAID 0.

    Perhaps I should contact them and OWC for clarification.
     
  6. matreya macrumors 65816

    matreya

    Joined:
    Nov 14, 2009
    #6
    1250MB/sec is the THEORETICAL maximum of Thunderbolt, it's the same as hard drive manufacturers quoting 6 Gbps maximum when hard drives can't get anywhere near that fast.
     

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