The above is a scan of an ImageWriter printout of that System Extension. If the next macOS version breaks it, and Tripp-Lite isn't interested in supporting that adapter any more, then we will need to find another product. There is a lengthy explanation it remains installable despite the fact it is neither signed or notarized, but that ability is nearly certain to be removed in the next macOS upgrade.Įxisting unsigned Extensions are likely to be rendered inoperative also all the more reason to not uninstall it. Hence my recommendation to leave it installed. It should remain installable in Catalina but I have not verified that. I had no trouble installing it but I believe I was using Mojave at the time, which I am no longer using. As you can see it is 64-bit and precedes the age of the Mac by about a decade. The above is its entry in System Information > Extensions. Version:Ē.6 Last Modified:Ę/12/09, 1:35 PM Bundle ID: .KeyspanUSAdriver Notarized: Unknown Loaded: Yes Get Info String:Ē.6 Copyright © 2000-2009 Keyspan Obtained from: Not Signed Kind: Intel Architectures: i386, x86_64 64-Bit (Intel): Yes Location: /Library/Extensions/KeyspanUSAdriver.kext Kext Version:Ē.6 Load Address:đ8446743521822773000 Loadable: No Signature Validation Errors: Not Signed Dependencies: Satisfied Signed by: Not Signed

There is no other driver for that adapter so I recommend you do not uninstall the existing one.Īm I to understand it is no longer working? Because it should:

The latest Keyspan adapter can be found on this page: Tripp-Lite indicates support for Mojave but not Cat. The others are not used and can be removed if you wish. The only one that is required and remains operative is the first.

Tripp lite keyspan driver windows 10