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Green PCIe x1 card with single RJ45 port and silver bracket

IOCrest

IOCrest Single Port 2.5Gbps PCI-e x1 Network Card Intel I225

SKU CH-XQ6K-1T4A1

Adds a single 2.5 Gbps RJ45 port over PCIe x1 using the Intel I225 controller with TSN, RSS and 9.5 KB jumbo frame support

  • Speed2.5Gbps
  • Connectors1 x RJ45
  • InterfacePCI-Express
  • 5 Gbps Ethernet boosts wired throughput with Intel I225 controller
  • PCIe x1 slot fits compact builds using single-lane interface
  • Advanced interrupt handling lowers CPU load through intelligent packet filtering
  • Jumbo Frame support up to 9.5 KB handles extra-large packets efficiently
  • TSN features enable time-sensitive networking for audio, video and industrial apps

Single-port 2.5 Gbps Ethernet upgrade

This IOCrest PCIe x1 card adds a 2.5 Gbps RJ45 port to desktops, workstations or compact industrial systems. The Intel I225 controller handles 10, 100, 1000 and 2500 Mbps links automatically. It suits users who need faster wired throughput than standard gigabit without moving to 10 Gbps infrastructure.

Replaces onboard 1 GbE when 2.5 Gbps switches

The jump is worth it when your router, switch or storage device already supports 2.5 GbE and cabling is Cat 5e or better. If the rest of the network tops out at 1 Gbps the extra headroom stays unused. No benefit appears on networks limited to 100 Mbps or older cabling.

Handles multi-gig internet.

Jumbo frames up to 9.5 KB and 40 KB packet buffers keep large transfers efficient. TCP segmentation offload up to 256 KB and checksum offload for IPv4 and IPv6 reduce CPU load. TSN features such as IEEE 802.1Qbv and 802.1AS-REV support time-critical audio, video and industrial streams. The single port cannot aggregate links or serve dual-homed redundancy.

Highlights

  • 5 Gbps Ethernet boosts wired throughput with Intel I225 controller
  • PCIe x1 slot fits compact builds using single-lane interface
  • Advanced interrupt handling lowers CPU load through intelligent packet filtering
  • Jumbo Frame support up to 9.5 KB handles extra-large packets efficiently
  • TSN features enable time-sensitive networking for audio, video and industrial apps

Specifications

Speed2.5Gbps
Connectors1 x RJ45
InterfacePCI-Express

Questions about this item

Does this card fit a standard PCIe x1 slot?

The card uses a PCI Express x1 interface and occupies a single low-profile bracket with one RJ45 port.

What driver step is often missed when installing the Intel I225 controller?

After seating the card, install the Intel Ethernet driver package so the 2.5 Gbps link negotiates correctly instead of falling back to 1 Gbps.

When should the RJ45 port or the card itself be replaced?

Replace the card if the port no longer negotiates 2500BASE-T, 1000BASE-T or 100BASE-TX speeds, or if the 9.5 KB Jumbo Frame and 40 KB packet buffer features stop working.

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