Thunderbolt Firmware Update provides Thunderbolt performance and stability fixes. Please follow Apple’s installation instructions:
When your computer restarts a gray screen will appear with a status bar to indicate the progress of the update.
Do not disturb or shut off the power on your computer during this update.
To install the update click the Apple logo then choose Software Update.
The update is also available on Apple’s website: Thunderbolt Firmware Update.
Speaking of Thunderbolt, Apple is now selling a 2 meter Thunderbolt cable available for $49.99.
Thunderbolt technology supports blazing-fast data transfer with two independent channels of 10Gbit/s each. Use the Apple Thunderbolt cable to connect your Thunderbolt-equipped peripherals to your new iMac or new MacBook Pro.
Apple Thunderbolt cable can also be used for Target Disk Mode between two Macs that support Thunderbolt, or to use a new iMac as a display for a MacBook Pro equipped with Thunderbolt.
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