Intel i225-V «Foxville»

Intel is preparing a next-generation network controller called the i225-V "Foxville", which should be the first 2.5 Gbps controller for mainstream consumer products. Note that 2.5 Gigabit Ethernet has the same requirements for Cat5E and Cat6 network cables as 1 Gigabit Ethernet.


  • Integrated MAC / PHY supporting 10BASE-Te, 100BASE-TX, 1000BASE-T and 2500BASE-T 802.3 specifications
  • IEEE 802.3u auto-negotiation conformance
  • Carrier extension support (half duplex)
  • Half duplex operation at 10BASE-Te and 100BASE-TX
  • Automatic polarity correction
  • Network proxy / ARP offload
  • MDC / MDIO management interface
  • Smart speed operation for automatic speed reduction on faulty cable plants
  • Power optimizer support
  • Intel® Stable Image Platform Program (SIPP)


  • 1 lane PCIe Gen 2 v3.1 interface for active state operation
  • SMBus interface to Intel® vPro engine at low system power state
  • Integrated MDI termination resistors reducing BOM costs
  • Configurable MDI TAP up / down operation
  • Three configurable LED outputs


  • Four transmit and four receive queues
  • Jumbo frames (up to 9 KB and without TSN)
  • Receive Side Scaling (RSS) and MSI-X to lower CPU use in multi-core systems

Package & Design

  • 7x7 mm PG-VQFN-56 with a 0.4 mm lead pitch and an Exposed Pad * for ground
  • 0 to 70 ° C commercial temperature
  • -40 to 85 ° C industrial temperature (for I225-IT SKU only)
  • Integrated Switching Voltage Regulator (iSVR)