https://www.anandtech.com/show/11692/intel-to-discontinue-first-gen-thunderbolt-3-controllers
Intel plans to discontinue the "Alpine Ridge" thunderbolt 3 controllers this year, and will be shipping the next gen to manufactures in 2018.
Also the Asrock driver for download on this motherboard is 16.3.61.275
This means the driver works for thunderbolt 3 (All alpine ridge) and earlier style thunderbolt chips mentioned
https://www.necacom.net/index.php/i...thunderbolt-software-version-16-3-61-275-whql
Intel Thunderbolt Software Version 16.3.61.275 WHQL. - This download record provides firmware and drivers for the Thunderbolt technology. Although Intel currently holds a monopoly on Thunderbolt-capable controllers, the tech is actually available in several flavors. Supported OS: Windows 7, Windows 8, Windows 8.1, Windows 10 - 32/64 bits.
DriverVer = 02/27/2017,16.3.61.2
Software= 16.3.61.275 (Release Date: 16/03/17)
Supported Operating Systems
===========================
Windows* 7 32-bit/64 bit
Windows* 8 32 bit/64-bit
Windows* 8.1 32 bit/64-bit
Windows* 10 32 bit/64-bit
Target Intel Thunderbolt chipset :
DSL4410, DSL4510, DSL5110, DSL5520, DSL5320, DSL6340, DSL6540, JHL6240, JHL6340 and JHL6540 .
(These are thunderbolt 2 and earlier controllers)
DSL4510/4410 Series - "Redwood Ridge" (Tested with NVM rev 30)
DSL5520/5320 Series - "Falcon Ridge" (Tested with NVM rev 28)
DSL5110 Series - "Thunderbolt LP" (Tested with NVM rev 9)
(These are all thunderbolt 3 controllers - All alpine ridge)
DSL6540/6340 Series - "Alpine Ridge" (Tested with NVM rev 21)
JHL6540/6340 Series - "Alpine Ridge" (Tested with NVM rev 9)
JHL6240 Series - "Alpine Ridge LP" (Tested with NVM rev 4))