Question about AsRock Z390 Phantom Gaming-ITX/ac

No, the Thunderbolt 3 controller of the ASRock Z390 Phantom Gaming-ITX/ac only serves 2 PCIe lanes (out of a maximum of 4), and does not manage 40 Gbit/s, but only 20 Gbit/s.
On the other hand, the Mobo is quite energy-efficient compared to the competition - and it is the only more or less current Intel mini-ITX with TB3.

1 Intel® Thunderbolt™ 3 Type-C
4 USB 3.1 Gen2 10Gb/s (Rear) are NOT EQUAL to Thunderbolt 3.
Thunderbolt 3 has 40Gb/sec, standard (standardised).
On this motherboard the only type C
The others are Type A, incl. 4 USB 3.1 Gen2
see section Rear panel and Billd in the Gallery
https://www.asrock.com/mb...