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I need to work with 1394b equipment on a notebook, but 90% of the new notebook does not have 1394b port enough neither an Express Card 34 slot.

That is why I need a USB 3.0 to 1394b device. I was able to find a USB 3.0 to GiGE only here: USB 3 to Gigabit Ethernet adapters: where are they?

I wounder why it is so hard to find notebooks with Express Card 34! There should be a replacement to this slot!! :/

-- When I say adapter I mean an active convertor!!

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There is a replacement, is is called Thunderbolt. (Expresscard was basically a 'single PCIe lane and a USB connector' in one, Thunderbolt is remote 'PCIe (one of multiple lane speed) and displayport' in one.) –  Hennes Jan 23 '13 at 13:55
    
There are no CardBus or Express card slots on this laptop? –  Dave M Jan 23 '13 at 13:55
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Also note that USB and Firewire are different protocols. It is not merely a question of an adapter. You would need an active convertor. The difference in words might be small, but technically it is not. –  Hennes Jan 23 '13 at 13:57
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It doesn't appear there are ANY USB to Firewire adapters on the market. I looked into a USB/Firewire HUB thinking it would give you access to the Firewire BUS through USB but none of the devices I looked at don't work like that –  Ramhound Jan 23 '13 at 14:13
    
The big majority of notebook does not come with any available slot, no Express card nor TB. I know that its not a simple adapter..... –  Pedro77 Jan 23 '13 at 15:32
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FireWire has features than cannot be easily emulated over a bus like USB.

A USB-to-FireWire adapter, if somebody would manage to build one, would probably not be able to get 1394b speeds, and would likely cost much more than a complete new notebook with a built-in FireWire (or Thunderbolt) controller.

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I don't really know the answer, but I disagree. I know that it would need a chip to convert, like the USB 3.0 to Ethernet. About the transfer rate, USB 3.0 can manege 5 GB/s, firewire b in only 0.8 GB/s. –  Pedro77 Jan 23 '13 at 15:36
    
The problem is not the theoretical maximum transfer rate but features like peer-to-peer broadcast, 64-bit packet addresses, etc. –  CL. Jan 23 '13 at 16:06
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