The "G24101MKG" refers to the magnetic transformer module on the card rather than the controller itself. Most cards featuring this component utilize a or RTL8168 series chipset for PCIe versions, or an RTL8110 series for older PCI versions. Where to Download Drivers
Alternatively, right-click the unknown device in Device Manager > > Search automatically for drivers .
Here’s a to get the correct driver:
Finding the correct driver for an older network card like the M-Tek G24101MKG
The card was resurrected.