P2 Thunderbolt 2 Card Reader
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Driver (4)
Firmware (0)
No Firmware was found for product.
 
Manual (2)
FAQ (2)
IDArticle TitlePost Date
941 My P2 Reader does not work in macOS 10.13.Mar-03-22
Starting with High Sierra, macOS implements VT-d (virtualization technology for directed IO) more aggressively than previously, and this breaks the P2 driver. As a workaround, you can turn off VT-d, but it will probably stop Parallels and Fusion VM systems from working.

In Terminal, enter
sudo nvram boot-args="dart=0"
then reboot.

After Sonnet releases a driver that is compatible with the 10.13 implementation of VT-d in Thunderbolt 3 Macs, you can re-enable VT-d by entering in Terminal:
sudo nvram -d boot-args
then reboot.
 
1007 After I upgraded macOS, the P2 Reader is not recognizing cards.Dec-10-21