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Thunderbolt 3 is an update of Thunderbolt 2 technology. While Thunderbolt 2 technology continues to provide impressive transfer rates up to 20Gb/s bi-directional, Thunderbolt 3 offers improved performance with a potential up to 40Gb/s bi-directional. Thunderbolt 3 technology also gives you greater flexibility when using video and data, assigning greater throughput to the stream that carries the heavier load. You must have a computer that supports Thunderbolt 3 to take advantage of the updates in performance and the intelligent sharing of bandwidth.
Similar to Thunderbolt 2 technology, a single Thunderbolt 3 daisy chain can have up to seven devices, including the computer. For example, you can daisy chain five LaCie d2 Thunderbolt 3 enclosures on the same line with a display.
Connect the cable to one of the interface ports on the back of LaCie d2 and to your computer. The additional port on LaCie d2 can be used to daisy chain compatible Thunderbolt 3 peripherals, such as hard drives and monitors. If you have another Thunderbolt 3 storage device, make certain to connect it to the daisy chain before adding compatible displays or USB 3.1 (USB-C) devices. See below for an example of the order of devices in a Thunderbolt 3 daisy chain.
USB 3.1 (USB-C) devices can terminate a Thunderbolt 3 daisy chain and should always be the last device.
You can daisy chain Thunderbolt 3 devices even when the LaCie d2 hard drives are spun down. Apply a short push on the LED power button. The status LED blinks slowly, indicating that the LaCie d2 is in idle mode.
Each Thunderbolt 3 port on LaCie d2 outputs up to 15W of power, and the USB 3.1 port delivers up to 27W. You can connect compatible devices that support charging via USB-C to the ports. LaCie d2 must receive power via its power cable to deliver power to compatible devices.