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HDMI 1.3 bandwidth is over 10G. Notebook nowadays has HDMI port available. Is that possible that we use HDMI cable to hook up 2 notebook and perform file copy operation?

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up vote 8 down vote accepted

It's technically possible, as HDMI is a bidirectional interface. however, it is designed for packet streams, and not data blocks.

So, in a practical sense, from a users perspective: No, it's not possible.

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Yeah... It's possible, but you'd have to do some pretty low-level hacking (possibly even writing custom drivers?) to pull it off. –  Dave Sherohman Mar 1 '11 at 12:20
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HDMI does potentially provide an Ethernet channel so that internet-enabled home theater equipment can have a one-cable solution (hdmi.org/manufacturer/hdmi_1_4/hec.aspx) but Ethernet over HDMI doesn't even come close to the available bandwidth of the HDMI interface. –  Stephanie Jun 13 '12 at 13:09
    
@Stephanie I believe this is due to wrapping Ethernet packets into HDMI packets. When lengths are not equal, they'd have to be split and rearrange, possibly buffered. I's just assumptions, though. I don't think that that kind of equipment comes with TCP stacks, it's probably implemented in firmware... –  polemon Jun 13 '12 at 17:18
    
I too am interested in this. This is the highest bandwidth interface easily available to the consumer. –  Milind R Dec 27 '13 at 8:07
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This doesn't practically help you, but apparently HDMI is being used to stack switches now:

"2 Stacking Ports (HDMI)"

Source: http://www.dell.com/us/fedgov/p/data-center-gigabit/product-compare

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Just to let you know I shamelessly copied one of your blog posts in my answer here. –  terdon May 5 '13 at 21:16
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No its not currently possible to do that, HDMI (High Definition Multimedia Interface) is for video & audio streams only

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No. HDMI is a media cable only.

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It is possible, there are HDMI cables that support data, or even "internet" sharing. Both devices must have support for data transfer.

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Citation needed. –  Mokubai Sep 23 '13 at 21:55
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