Intel EtherExpress MCLA8110 ISA Ethernet Network Card BNC Coax AUI 10Mbps

Intel EtherExpress MCLA8110 ISA Ethernet Network Card BNC Coax AUI 10Mbps

The Intel EtherExpress MCLA8110 is a 10 Mbps ISA-bus Ethernet network interface card from Intel's EtherExpress product line. It provides both BNC (10BASE2 thin coax) and AUI (DB15) connectivity, making it suitable for the multiple cabling standards common in enterprise and educational networks of its era. The card uses an Intel-branded main controller IC and a Valor isolation transformer module visible on the solder side.

Specifications & What's Included

• Model: MCLA8110
• Board ID: EJMPCED MCLA8110
• Series: Intel EtherExpress
• Bus Interface: ISA (Industry Standard Architecture — 16-bit)
• Network Speed: 10 Mbps
• Network Standards: 10BASE2 (BNC thin coax), AUI (DB15)
• Connectors on bracket: BNC female (10BASE2 coax), AUI DB15 female
• Main controller: Intel-branded IC (visible on component side)
• Transformer: Valor isolation transformer module (visible on solder side)
• Includes: Card only — no cables or mounting accessories

Applications

The Intel EtherExpress series was a widely deployed family of ISA Ethernet cards used throughout the late 1980s and 1990s in PC/AT-class systems, including 286, 386, 486, and early Pentium machines. The MCLA8110 variant's dual BNC and AUI connectors made it flexible across both thin-coax (10BASE2) bus networks and thicknet (10BASE5) or external transceiver setups — cabling topologies that were standard in corporate and university LANs before 10BASE-T twisted-pair became dominant. These cards are still sought today for maintaining legacy systems, period-correct DOS/Windows 3.x networking builds, and vintage computing restorations. Driver support exists for MS-DOS, Windows 3.x, Windows 95/98, and various contemporary network operating systems such as Novell NetWare and early LAN Manager environments.