Using USB 3.0 for Editing

Posted by apmende 
Using USB 3.0 for Editing
October 26, 2011 12:44AM
Is anyone using USB 3.0 for editing? In theory, it's supposed to be faster than esata but can it handle HD projects? If anyone is using this workflow, I'd love to hear what hardware you are using and what your experience is with this drive.

thank you,
Re: Using USB 3.0 for Editing
October 29, 2011 05:26AM
I've used the CalDigit AV drive on a MBP or on a MacPro and it's very fast - USB on a single HDD is comparable with eSATA and had no issues with video editing ProRes HD or DNxHD.

Via USB3 the Caldigit AV drive does around 128MBps Read and 100MBps Write

It also has FireWire 800 but via that connection it only does around 85MBps R/W

I was cutting a mix of ProRes 422 1080p25 and XDCAM EX 1080i50 with no issues.

If you were to link a USB 3 RAID then you could expect nearer the theoretical bandwidth of 4.8GBps (realistically 3.2GBps or 400MBps) on one connection.

Whereas eSATA 3G carries only 3GBps (realistically 2.4GBps or 300MBps) per channel although 6G is available and can carry almost double that but you need to connect HDDs in a RAID or SSDs that actually provide you that bandwidth or its all overkill.

So short answers - yes and yes - CalDigit and Normal workflow for Direct Attached Media Storage.

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