ASMxHCI_FWUpdateV1291_251230700240V1.exe is a Windows app 
that updates Asmedia 3142 firmware to revision 251230700240
in the following Sonnet Technologies products:

Allegro Pro USB-C 8-Port PCIe Card (USB3C-8PM-E)
Allegro Pro 4 USB 3.2 Gen 2 Type A PCIe Card (USB3-PRO-4P10-E)
Allegro Pro 4 USB 3.2 Gen 2 Type-C PCIe Card (USB3C-4PM-E)
Allegro USB 3.2 Gen 2 Type-C PCIe Card (USB3C-2PM-E)
McFiver PCIe Card (G10E-USBC-M2-E)
Fusion Dual 2.5-inch SSD RAID PCIe Card (FUS-SSD-2RAID-E)

https://www.sonnettech.com/support/index.html