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Connect the power supplyConnect the included power cable in the order listed below.

Connect the USB cableUse the USB-C to USB-C cable to connect 2big RAID to a USB-C port (USB 3.1 or Thunderbolt 3) on your computer.

Set up LaCie 2big RAIDThe setup process lets you:
| Register your device | Get the most from your device with easy access to information and support. |
| Install Toolkit | Manage RAID and more. |
| Learn more about Toolkit |
|---|
Toolkit provides useful tools that let you easily:
|
Start hereUsing a file manager such as File Explorer or Finder, open LaCie 2big RAID and launch Start Here Mac or Start Here Win.

Register your deviceEnter your information and click Register.

Download ToolkitClick the Download button.

Install ToolkitUsing a file manager such as Finder or File Explorer, go to the folder where you receive downloads.

Open the SeagateToolkit.zip file. Click on the Seagate Toolkit Installer to launch the application.
Click on the SeagateToolkit.exe file to launch the application.
LaCie 2big RAID is configured RAID 0 for full storage capacity and formatted exFAT for compatibility with macOS and Windows. Install Toolkit to help you initially set up the drives for performance or protection. See RAID Setup in the Toolkit user manual for details.
If you use 2big RAID with only one type of computer, you can optimise file copy performance by formatting the drives in the native file system for your operating system. See Optional Formatting for details.
In order to avoid file system corruption, it’s important to unmount the drive volumes before disconnecting the interface cable. See Safely Remove Device From Your Computer for details.