[SUCCESS]Dell Optiplex 9020 micro El Capitan / High Sierra

[Hervé]

PCI ven/dev id 2001:3310 is listed as DLink DWA-123 Wireless N 150 adapter in revision D1. The best I find for this is this. There are clearly at least 3 x different hardware versions of the DWA-123: A1, B1 and D1.

 

For revision D1 model, the above URL lists driver RTLWlanU_MacOS10.9_MacOS10.12_Driver_1830.20.b7_1827.4.b27_UI_5.0.6.b4. I've had a look at it with Pacifist and the kext called RtWlanU covers your DWA-123: its Info.plist file contains the following entry, which matches:

        <key>DLink_DWA123_88EU</key>
        <dict>
            <key>CFBundleIdentifier</key>
            <string>com.realtek.driver.RtWlanU</string>
            <key>IOClass</key>
            <string>RtWlanU</string>
            <key>IOKitDebug</key>
            <integer>0</integer>
            <key>IOProviderClass</key>
            <string>IOUSBInterface</string>
            <key>bConfigurationValue</key>
            <integer>1</integer>
            <key>bInterfaceNumber</key>
            <integer>0</integer>
            <key>idProduct</key>
            <integer>13072</integer>
            <key>idVendor</key>
            <integer>8193</integer>
        </dict>

As far as ids are concerned:

• 0x2001 = 8193
• 0x3110 = 13072

 

The Sierra driver can be expected to work in High Sierra, as stated here. If not, try Chris1111's tweaked package. It says it supports "DLink_DWA123_88EU"

It seems the chipset for that dongle would be Realtek's RTL8188EU.

 

NB: All this was found with a little Google search effort...

 

[joseph benigno Jr.]

The sierra driver worked great. Thanks for this. I did try searching on google but I guess I didn't search enough to find the solution you found. Thanks!