Allegro USB 3.2 Gen 2 Type-C PCIe Card (USB3C-2PM-E)
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Driver (0)
No Driver was found for product.
 
Firmware (1)
IDDownload TitleDownload LinkPost Date
1290 ASM3142 USB Host Controller Firmware Update 1291_251230700240V1
Download Now
August 4, 2026
Operating System Requirements: Windows 10 (64-bit), Windows 11
File Name: ASMxHCI_FWUpdateV1291_251230700240V1_for_Sonnettech_ASM3142_cards.zip
File Size: 3.38 MB
Description: ASMxHCI_FWUpdateV1291_251230700240V1.exe is a Windows app that updates ASMedia ASM3142 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)

Note: This release provides a fix for controller detection failure with certain motherboards with Intel® 800/700/600 Series desktop chipsets.
 
 
Manual (1)
FAQ (9)
IDArticle TitlePost Date
756 Do the Sonnet USB 2.0 or USB 3 cards support the Apple SuperDrive?Apr-02-22
759 My bus-powered USB 3 drive or SSD will not reliably mount or transfer data.Dec-14-19
817 Storage connected to a USB 3 PCIe card (or Tango combo card) gives an macOS error message upon wake from sleep.May-12-20
933 What versions of macOS support Allegro USB 3 cards?Apr-02-22
956 What generations of Thunderbolt chassis do Sonnet Allegro PCIe cards support?Apr-02-22
971 One or more of my ports has stopped working on my USB 3 card.Aug-24-22
1080 What is the difference between USB 3.0, 3.1 and 3.2?Apr-02-22
1099 What makes Sonnet USB 3.2 Cards more reliable than other USB 3 cards?Apr-02-22
1168 If I put a usb 2.0 and 3.0 device on the same controller will the speeds for the 3.0 device drop to 2.0 like older split-port controllers?Dec-07-21