What was the 32-bit ISA bus extension for 80386 PCs?

I've been able to find the PCI and ISA card edge footprints

ISA slot motherboard with one ISA slot , three PCI slots onboard VGA ,Sound ,VIA 8601T · Wireless Communicationbluetooth · UseUniversal · OriginMainland China

slot e wallet resmi 8-slot 3 ISA, 3 PCI, 1 PICMGPCI

slot deposit bank bsi for _, settingUis in SettingUi:GetChildren() do if settingUis:IsA then if settingUis