Intel I226-T1 Internal Ethernet 25000 Mbit/s Wired PCI Express

The Intel Ethernet Network Adapter I226-T1 is an internal wired PCIe network card designed for personal computers and workstations. The ultra-compact PCIe 3.1 x1 adapter supports multi-gigabit connectivity up to 2.5GbE and is compatible with legacy speeds (1Gbps, 100Mbps, 10Mbps) through autonegotiation, allowing use with existing cabling. The adapter is built on the Intel Ethernet Controller I226-LM and includes a ventilated bracket for improved thermal efficiency and reduced power consumption.

Advantages

The I226-T1 delivers multi-core optimized performance with advanced interrupt-handling and intelligent packet filtering and queueing to reduce CPU overhead and improve throughput on multi-core platforms. It offers straightforward integration in compact systems via a PCIe x1 slot and supports common Ethernet standards (IEEE 802.3 family). The adapter provides a cost-effective upgrade path to 2.5GbE without replacing cabling infrastructure.

Suitable for

• Home and small office desktops requiring higher-than-gigabit LAN speeds
• Workstations used for enterprise and professional applications
• Gaming PCs where reduced latency and improved network throughput are desired

Key specifications

• Model: Intel I226-T1 (based on I226-LM controller)
• Interface: PCI Express 3.1 x1
• Connectivity: Wired Ethernet
• Maximum data transfer rate: up to 2.5 Gbps (supports 2.5Gbps, 1Gbps, 100Mbps, 10Mbps)
• Networking standards: IEEE 802.3, IEEE 802.3x, IEEE 802.3z
• Bracket: ventilated bracket for improved cooling
• Color: green, silver

How to use

Install the I226-T1 in an available PCIe x1 slot (or a compatible x4/x8/x16 slot) on the motherboard, secure the bracket, and attach the Ethernet cable to the RJ‑45 port. After powering on the system, install the latest Intel drivers for the I226-T1 appropriate to your operating system to enable full feature support and optimal performance. Use network configuration tools in your OS to set autonegotiation, speed, and duplex settings as needed.

Recommendations

For best results, use quality CAT5e or CAT6 cabling for 2.5GbE links, keep system drivers up to date, and place the ventilated bracket in a case position with adequate airflow to maintain low power consumption and cooling efficiency.