McFiver PCIe Card
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Driver (2)
Firmware (1)
IDDownload TitleDownload LinkPost Date
1290 ASM3142 USB Host Controller Firmware Update 1291_251230700240V1
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August 4, 2026
Operating System Requirements: 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)
IDDownload TitleDownload LinkPost Date
1186 McFiver PCIe Card Quick Start Guide [English]
Download Now
Apr-21-25
 
FAQ (6)
IDArticle TitlePost Date
814 I'm getting low throughput on macOS. How can I fix this?May-26-22
976 In a Mac Pro, the SSDs are seen as external drives, how do I prevent accidental ejects?Feb-14-23
1073 How do I configure RAID under macOS?Feb-14-23
1136 How can I use my new SSD volume to hold my user folder on macOS?Feb-14-23
1183 The Write performance of my SSD is very slow under Windows.Feb-14-23
The Windows default for any external storage media is for Write Caching policies to be disabled. If you have enabled it, then the write performance to an SSD will be very slow. To get significantly increase write performance, disable Write Caching. For instructions, see this Microsoft Document.
 
1189 The x8 PCIe lanes can deliver up to 7.8 GB/s. How do you fit the RAID, the 10gig lan and the 2x USB 3.2 in this bandwidth?Jun-08-22