Since Lenovo T570 has 1 Thunderbolt port, you will need this software in order to use a Thunderbolt device, such as a Thunderbolt storage, external graphics, thunderbolt dock etc (). Without this software, you won't be able to use a Thunderbolt device.

What is thunderbolt software and do I need it?

Thunderbolt is the brand name of a hardware interface developed by Intel (in collaboration with Apple) that allows the connection of external devices to a computer. ... With the introduction of Copper cables in thunderbolt software, data and power became easily transmittable.

What is thunderbolt software for?

Thunderbolt™ ports connect computers to data, video, and power on a single cable that delivers a fast and consistent experience for work and play. A versatile I/O solution, Thunderbolt™ technology enables a 40 Gb/s connection for data and video at home, in the office, or on the go.