Getting Connected

STEP 1 – Connect the USB-C cable

Use the USB-C cable to connect d2 Professional to a USB-C (USB 3.1 or Thunderbolt 3) port on your computer.

STEP 2 - Prepare and connect the power supply

LaCie d2 Professional will power on automatically when it is connected to a computer that is turned on and a live power outlet.

Use only the power supply provided with your d2 Professional. Power supplies from third-party devices and other LaCie products can damage your d2 Professional.

Press the release tab on the universal power supply to unlock the safety cover. Slide the cover back to remove it.
Place the adapter plug for your location into the channel on the power supply. Slide it forward to lock it in place.

Connect the power cable to the power input on d2 Professional, and then connect the power supply to a live power outlet.

STEP 3 - Set up LaCie d2 Professional

The setup process lets you:

Register your device	Get the most from your device with easy access to information and support.
Install Toolkit	Manage backup plans, mirror folders, and more.

Using a file manager such as File Explorer or Finder, open LaCie d2 Professional and launch Start Here Win or Start Here Mac.

Follow the onscreen instructions.

Your computer must be connected to the internet to install Toolkit.

Learn more about Toolkit
Toolkit provides useful tools that let you easily: Manage backup plans (Windows only). Create mirror folders. For details on Toolkit features, see the Toolkit user manual.

Storage format

LaCie d2 Professional is delivered preformatted as exFAT for compatibility with both Windows and Mac computers. If you use the drive with only one type of computer, you can optimize file copy performance by formatting the drive in the native file system for your operating system. Choose one of the following methods to optimize your drive:

Use Toolkit to optimize disk format. See the Toolkit user manual for details.
Manually format your drive. See Optional Formatting and Partitioning for details.

Disconnecting the hard drive

In order to avoid file system corruption, it’s important to unmount your hard drive’s volumes before disconnecting the interface cable. See Safely Remove Device From Your Computer for details.