Single Port M.2 M+B key 2.5G Ethernet Card

Single Port M.2 M+B key 2.5G Ethernet Card


  • M.2 M+B Key
  • This M.2 2.5Gbps Gigabit Ethernet Adapter is a high performance 10/100/1000/2.5G BASE-T Ethernet LAN controller. It supports high performance dual channel networking and full duplex communication to achieve up to 2500 Mbps and fast transfer rates.
  • The Intel Ethernet Controller I225 is designed for use on any mobile, desktop, workstation, value-server, or industrial designs that have critical space constraints.
  • This M. 2 M+B key controller with Base-T copper networking interface, provides compact, single-port integrated multi-gigabit (up to 2.5G ).
  • I225 builds on prior controller solutions to add Time Sensitive Networking (TSN) features including IEEE 802.1Qbu, 802.3br, 802.1Qbv, 802.1AS-REV, 802.1p/Q, and 802.1Qav on select operating systems. These features support advanced time critical, and synchronized applications prevalent in audio/video, embedded, and industrial applications.

Product Detail

Product Tags


Technical Specifications
Warranty Information
Part number                                                         STC-PN0032

Warranty                                                              3-years

Connector Plating                                                Gold-plated
Physical Characteristics
Port                                                                      M.2 (B+M Key)

Color                                                                    Green

Interface                                                              1 Port RJ-45

Packaging Contents
1 x Single Port M.2 M+B key 2.5G Ethernet Card (Main card & Daughter card)

2 x Connecting Cable

1 x User Manual

1 x Low-profile bracket 

Single gross weight: 0.41 kg    

Driver download:

Products Descriptions

M.2 (B+M Key) to 2.5G Ethernet Card, with Intel I225 Chip, RJ45 Copper Single-Port, M.2 A+E Key Connector, M.2 2.5G Network Card, M.2 2.5G Ethernet Card, Support Windows Server/Windows, Linux.



M.2 B+M 2.5G Network Card with Intel I225 Chipset, M.2 2.5G Ethernet Module 2.5G Ethernet Port 2500Mbps High Speed for Desktop, PC, Office Computer.



Compliant with M.2 Key B+M NGFF Card Electromechanical Specification

Compatible with M.2 key B/M (2242) Card Electromechanical specification

Integrated MAC/PHY supporting 10BASE-Te, 100BASE-TX, 1000BASE-T and 2500BASE-T 802.3 specifications

RJ45 connection :Compatibility with cable lengths up to 100 meters using CAT5e, CAT6, or CAT6A.

PCI Express 3.1:5GT/s support for x1 width (Lane).

IEEE 802.3 autonegotiation

IEEE 802.3x and IEEE 802.3z compliant flow control support with software-controllable Rx thresholds and Tx pause frames

Multiple Queues: 4 Tx and Rx queues per device

Tx/Rx IP, SCTP, TCP, and UDP checksum offloading(IPv4 IPv6) capabilities

Energy Efficient Ethernet (EEE): IEEE 802.3az enabled for reduced power consumption, Supports 10GBASE-Te (EEE of 10Mbps).

Note: Enabled for 2.5,1GBASE-T, and 100BASE-TX in future release.

Active State Power Management (ASPM)                         

ACPI register set and power down functionality supporting D0 and D3 states

MAC Power Management controls

Power Management Protocol Offload (Proxying)

TCP/UDP, IPv4 checksum offloads (Rx/Tx)            

Transmit Segmentation Offloading (TSO) (IPv4, IPv6)

Low-Latency Interrupts

Receive Side Scaling (RSS) for Windows :Up to four queues per port.

Support for packets up to 9.5KB (Jumbo Frames):Enables faster and more accurate throughput of data.

Operating Temperature 0 °C to 55 °C (32 °F to 131 °F)

Storage Temperature -40 °C to 70 °C (-40 °F to 158 °F)

Storage Humidity Maximum: 90% non-condensing relative

Humidity at 35 °C

LED Indicators LINK (solid) and ACTIVITY (blinking)


System Requirements 

Windows 10

Windows 11

Linux(Kernel version: 5.15 and newer)


Package Contents

1 x M.2 M+B key 2.5G Ethernet Card (Main card & Daughter card)

2 x Connecting Cable

1 x User Manual

1 x Low-profile bracket 

Note: Contents may vary depending on country and market.    


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