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USB 3.0 Lacie kext (Patched by Modbin!) 1.0

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About This File

This is a mirror of this file: http://cl.ly/5d7458679f9c749c0d09

The Lacie kexts for USB 3.0 are edited by Modbin. He removed the security and now everyone can use it.

Try it on your own risk! Make a backup first!

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How exactly do you install this... i have Kext helper, have installed the Lacie 1.0.7 driver and have the Patched PXHCD file... I haven't got it to work right though.

I have Lion 10.7.2. With just the Lacie Driver it sees the PCI-X card just fine... but my WD MyBook seems to only be showing up as a USB 2 drive (due to the Lacie Limitation on the driver?). If i'm educating right, this patch is supposed to fix that, but I am looking for any feed back on how to get it to work on Lion 10.7.2.

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Go to HD>System>Library>Extensions

Didn't work for me, gave this error when I tried to copy it: The system extension ?/System/Library/Extensions/PXHCD.kext? was installed improperly and cannot be used. Please try reinstalling it, or contact the product?s vendor for an update.

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hi :)

First of all million thanks to Modbin! u saved my $60.(LaCie USB 3.0 ExpressCard/34)

Install instructions:

1. Remove USB 3.0 card from your computer (PCIExpress/ExpressCard)

2. Download this kext and save it on your desktop.

3. Copy this kext from desktop to the following path:


4. Open Terminal and type the following commands:

a) sudo chmod -R 755 /System/Library/Extensions/PXHCD.kext

B) sudo chown -R root:wheel /System/Library/Extensions/PXHCD.kext

c) sudo rm -R /System/Library/Extensions.kextcache

d) sudo rm -R /System/Library/Extensions.mkext

NOTE: if step c) or d) returns any error don't worry just proceed

e) sudo reboot

5. After reboot open diskutilty and repair permissions

6. Now shutdown your computer

7. Install or connect your USB 3.0 card (PCIExpress/ExpressCard)

8. Turn on your computer

9. You should have fully functional/working USB 3.0 card

10. If you still have problem open System Profiler and check Extensions (whether the PXHCD.kext is loaded successfully or not..)

11. If it is not listed open terminal and type:

sudo kextload -v /System/Library/Extensions/PXHCD.kext

12. Now check your System Profiler whether the USB Super-Speed Bus is present or not.

13. If present ENJOY :) else BAD LUCK :(


Arigato Modbin! :)

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No dice. Followed all instructions but Kernal Panics the instant the card is plugged in. It worked for a little while but now it just crashes.

MacBook Pro 2008. Lion 10.7.4

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Works excellent with cheap Gembird USB 3.0 host adapter with NEC chipset !!! Transfer rate about 95 MB/s. Mac OS X 10.6.8 Server on ASUS P5W DH Deluxe

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There is an updated version of 1.0.10 here

The key is that the 1.0.8 driver did not include PCIMatchedFamily entry in the info.plist, but the 1.0.10 driver does. Removing this entry will allow the driver to load for generic NEC/Renesas cards.

Anyone know where the dp3 usb files are so I can get USB 3.0 hubs accessible ?

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