PCIe x1 Network Card MicroConnect MC-PCIEX1-82575-Q with Intel 82575 Controller

MicroConnect MC-PCIEX1-82575-Q is a PCI Express x1 network card that uses the Intel 82575 controller to provide a wired Gigabit Ethernet interface for desktop systems. The card is intended for installation into a PCIe x1 slot to add or restore a stable 10/100/1000 Mbps LAN connection. It supports common desktop operating systems and is engineered for low-latency packet handling, making it suitable for general office use, media streaming, and basic server or workstation networking.

Advantages

The card delivers reliable Gigabit throughput and hardware-level network features from the Intel 82575 controller, including efficient packet processing and reduced CPU overhead. Its PCIe x1 form factor allows installation in systems with limited expansion space, while standard bracket and connector placement ensures compatibility with typical desktop cases. Driver support for mainstream operating systems simplifies integration and replacement of failed onboard network interfaces.

Suitable for

• Upgrading older desktop PCs to Gigabit Ethernet
• Replacing a malfunctioning built-in network interface
• Adding a wired LAN port to a small form-factor workstation
• Building networked office machines and lightweight servers

Key specifications

• Interface: PCI Express x1
• Controller: Intel 82575-based
• Network speeds: 10/100/1000 Mbps (Gigabit Ethernet)
• Connector: standard RJ‑45 Ethernet port with integrated PHY
• Form factor: low-profile compatible bracket (standard desktop fit)
• Features: low-latency packet handling, hardware offload capabilities
• Compatibility: drivers available for major desktop operating systems

How to use

Power down the computer, open the case and locate a free PCIe x1 slot. Remove the appropriate expansion slot cover from the chassis, insert the network card firmly into the PCIe x1 connector and secure the bracket to the case with the screw. Close the case, power on the system and install the appropriate drivers if the operating system does not automatically recognize the device. Connect a network cable to the RJ‑45 jack and verify link and speed status in the system network settings.

Recommendations

For reliable operation, install the latest drivers provided by your operating system vendor or the hardware manufacturer and ensure the card is seated correctly in the PCIe slot. Use quality shielded Ethernet cables for best Gigabit performance and avoid placing the card in slots that share bandwidth with other high-throughput devices if low latency is required.