This connecting cable in the Thunderbolt 3 class provides the highest performance possible: Data transfer of up to 40 Gbps power delivery of up to 100 W and video up to 2x 4K with a refresh rate of up to 60 Hz (or 1x 8K / 30 Hz). If you are searching for a top-quality inexpensive and adequately long cable to connect your computer with accessories then this product is perfect for you. Since its compatible with Thunderbolt 3 as well as with USB-C technology its usage is universal if for example you work with accessories that use both of these standards.&lt;br /&gt;&lt;br /&gt;This extension cable is top-quality with a minimum loss of signal quality and transmission speed and it of course delivers everything that you would expect from Thunderbolt 3 technology.