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Green circuit board with silver RJ45 port and metal bracket

Intel

Intel I226T1 2.5Gbps PCIe 3.1 network card

SKU CH-ZKX1-B2PKQ MPN I226T1

Single-port 2.5Gbps PCIe 3.1 Ethernet adapter with RJ45 connector supporting 10/100/1000 speeds

  • Rated speed2.5 Gbit/s
  • Interface typePCIe 3.1 (5 GT/s)
  • Supported standardsEthernet
  • Connection types1 x RJ45
  • Seller noticeNot applicable, 1 Year
  • Key featuresComputer/Workstation
  • 5Gbps bandwidth for faster file transfers
  • Backwards compatible with 1Gbps, 100Mbps and 10Mbps networks
  • Single RJ45 port keeps cabling simple
  • PCIe 3.1 x1 interface fits most desktop slots
  • Low-profile bracket aids airflow in compact cases

Ultra-compact 2.5GbE adapter

The Intel I226T1 is a single-port PCIe 3.1 network card built for performance PCs and workstations that need bandwidth up to 2.5Gbps. It fits a standard x1 slot and uses an RJ45 connector for twisted-pair cabling. The ventilated bracket helps manage heat during continuous operation.

Sustained 2.5Gbps throughput

Under sustained load the adapter maintains 2.5Gbps, 1Gbps, 100Mbps and 10Mbps links through autonegotiation without requiring cable upgrades. Intelligent packet filtering and queue assignment distribute traffic across CPU cores to preserve throughput on multi-core platforms. The design targets stable, high-speed connectivity for extended transfers.

Single RJ45 port constraint

This card provides exactly one 2.5GBASE-T port, so systems needing multiple 2.5GbE connections or fibre uplinks must look elsewhere. The x1 PCIe 3.1 interface supplies 5 GT/s bandwidth for the single controller. Buyers requiring dual-port or 10GbE capability should select a different adapter.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $59.99
Cheaper than about 61% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameIntel
Model nameI226T1
Part numberI226T1
Performance
Rated speed2.5 Gbit/s
Connectivity
Supported standardsEthernet
Ports & slots
Interface typePCIe 3.1 (5 GT/s)
Connection types1 x RJ45
Size & build
Product dimensions6.8 in × 5.7 in × 1.2 in
Product weight0.1 lb (0.05 kg)
Shipping weight0.14 kg
Package size173 × 145 × 30 mm
In the box
In the boxAdapter

Questions about this item

How much power does the I226-T1 draw when running 2.5Gbps traffic all day?

The Intel I226-T1 is designed with a ventilated bracket to improve efficiency and reduce power consumption during continuous 2.5Gbps operation.

What cabling and switch ports do I already need for this adapter to work at 2.5Gbps?

The adapter uses a single RJ45 port and autonegotiates 2.5Gbps, 1Gbps, 100Mbps and 10Mbps speeds over existing Cat5e or better twisted-pair cabling.

Will this PCIe 3.1 x1 card slow down if I install it in an older PCIe 2.0 slot?

The card fits any PCIe x1 or larger slot; in a PCIe 2.0 slot the 5 GT/s link drops to 2.5 GT/s but still provides enough bandwidth for the 2.5Gbps Ethernet port.

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