As an older legacy device, finding official "modern" drivers is difficult. Most reviews and user discussions focus on two scenarios: Plug and Play:

PCI (standard 32-bit), making it compatible with older motherboards or specific industrial IPCs.

Often automatically detected by modern Windows operating systems, though specialized drivers may be required if the card is not recognized.

Find the "Ethernet Controller" (often marked with a yellow exclamation point). Right-click it and choose .

/* program base addresses */ write_reg(TX_DESC_BASE_LO, lower_32(tx_ring_dma)); write_reg(TX_DESC_BASE_HI, upper_32(tx_ring_dma)); write_reg(RX_DESC_BASE_LO, lower_32(rx_ring_dma)); ... /* enable MAC */ write_reg(MAC_CTRL, MAC_CTRL_RX_EN | MAC_CTRL_TX_EN);

Look for an entry like "Realtek PCIe GBE Family Controller" or a "Network Controller" with a yellow exclamation mark. Right-click Properties tab → Select Hardware IDs