Network card MicroConnect MC-PCIEX4-82576-D PCIe x1 Dual Port Ethernet 82576

MicroConnect MC-PCIEX4-82576-D is a PCIe x1 network card featuring two independent Gigabit Ethernet ports driven by the Intel 82576 controller. Designed for servers and desktops, the card adds two wired network interfaces to systems with an available PCIe x1 slot. It supports common networking modes such as link aggregation and redundant connections, making it suitable for expanding connectivity, separating network segments, and supporting virtualization environments or small-scale server deployments.

Advantages

The dual-port design delivers two independent Gigabit Ethernet links through a single PCIe x1 interface, enabling flexible network topology choices including aggregation for increased throughput and failover for improved resilience. The Intel 82576 controller ensures broad driver support across operating systems and stable performance for sustained network loads. The card's compact form factor and standard edge connector allow installation in most desktop and server chassis with compatible expansion slots.

Suitable for

• Expanding wired network interfaces on desktop computers and servers
• Link aggregation to increase available bandwidth between systems or to switches
• Providing redundant network paths for higher availability
• Separating management, storage and data traffic on one machine
• Small virtualization hosts or lab servers needing multiple physical NICs

Key specifications

• Interface: PCI Express x1
• Ports: 2 × Gigabit Ethernet (RJ45)
• Controller: Intel 82576 family
• Supported speeds: 10/100/1000 Mbps
• Offload features: TCP/IP checksum offload, segmentation offload (dependent on driver)
• Form factor: Low-profile compatible bracket support (check chassis compatibility)

How to use

Install the card into an available PCIe x1 slot following standard electrostatic discharge (ESD) precautions. Secure the bracket to the chassis and connect standard RJ45 Ethernet cables to the two ports. Boot the system and verify device detection in the operating system. Install appropriate drivers provided by the operating system or from the controller vendor if required. Configure network settings via the OS network manager or server management tools, and set up link aggregation or failover where needed using switch and system configuration utilities.

Usage recommendations

For optimal performance, use quality Cat5e/Cat6 cables and match switch port settings when enabling link aggregation. Validate driver compatibility with the chosen operating system and kernel version before deployment in production environments. When installing in compact systems, confirm available slot clearance and bracket type; switch to a low-profile bracket if necessary.