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Thunderbolt to USB 3.0 adapter

Does anyone know if and when Apple will offer a thunderbolt to USB 3.0 adapter?

Mac OS X (10.7.3)

Posted on May 9, 2012 5:56 PM

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11 replies

Jul 20, 2012 9:47 AM in response to mattcuk1972

I have been searching for a TB to USB 3.0 for the past few days because I purchased an external hard drive that is compatable with both USB 2 and 3. My 2011 macbook pro is among the last models before apple incorporated USB 3 so an adapter would dramatically accelerate my back ups. However, I doubt apple will release a TB to USB3 adapter to the public.

Since their new line of macs come with USB 3.0 ports. I'd imagine apple hasn't provided it's customers with the adapter because the release of such an adapter would just minimalize the new macs and give buyers less incentive to buy their new products.

That's just my opinion and maybe I am just ignorantly upset with apple but I cannot imagine that a TB to USB3 adapter would be that difficult to create. I have a TB to HDMI cable that transfers crystal clear HD videos to my TV. This low cost, $7, cable seems simpler than a TB to USB3 adapter. I hope I am not over-simplifying the adapter and hating on apple's business for no reason, but I feel like the company is ignoring their customers.

Jul 20, 2012 11:02 AM in response to deanalexander

I agree, Dean. My 2011 Air is the last one without USB 3. Why did it take Apple so long to embrace USB 3? Maybe they through that 2011-12 would bring a firestorm of TB development and USB 3 would be forgotten by apple users. If so, it was a bad gamble and users like you and I take the loss. Barring the release of an affordable TB to FW800 adapter, we're stuck with USB 2 for now. This Air has a 128GB SSD, so you can imagine I rely on external storage quite a bit.


I guess if you're willing to pay $550 (including TB cable) for 4TB, you can get the WD TB version of MyBook:

http://www.amazon.com/gp/product/B006W3ZWXE

Jul 20, 2012 1:32 PM in response to deanalexander

I cannot imagine that a TB to USB3 adapter would be that difficult to create. I have a TB to HDMI cable that transfers crystal clear HD videos to my TV. This low cost, $7, cable seems simpler than a TB to USB3 adapter.

For Thunderbolt to HDMI the adapter merely connects pins on the two connectors. The computer graphics chip detect the adapter and send DVI video (electrically the same as HDMI) to certain pins on the Thunderbolt port. The adapter sends these signals to the correct HDMI pins.


A Thunderbolt to USB 3 adapter needs a PCI controller to use the PCI bus included in Thunderbolt.

Thunderbolt to USB 3.0 adapter

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