Twin25G Thunderbolt Adapter
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Driver (1)
IDDownload TitleDownload LinkPost Date
1221 TWIN25G/TWIN10G SFP28 Software [Windows]
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Operating System Requirements: Windows 11
Description: This is the unified Windows driver for the Sonnet TWIN25G and TWIN10G SFP28 Thunderbolt Adapters, and TWIN25G and TWIN10G SFP28 PCIe Cards.
 
 
Firmware (0)
Manual (1)
IDDownload TitleDownload LinkPost Date
1220 Twin25G Thunderbolt Adapter User's Guide [English]
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Apr-17-25
 
FAQ (3)
IDArticle TitlePost Date
1044 My 10G/25G adapter performance drops significantly on a laptop when battery level is low.Jun-19-26
1223 TWIN25G Teaming for Windows 11Aug-13-26
1226 TWIN25G macOS driver does not show in ExtensionsJun-01-26
The TWIN25G driver kit extension will not show in System Information>Software>Extensions.

To check whether the driver is installed, go to System Information>Hardware>Ethernet Cards. Click on one of the TWIN25G's ports and it should say Driver: com.sonnettech.sntmlx5e.