Driver Download: https://..cn/content//cn//products/sku/184676/-ethernet-controller-i225v/downloads.html Features: Compliant with M.2 Key B+M NGFF Card, Electromechanical Specification Compatible with M.2 key B/M (2242) Card Electromechanical specification, Integrated /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 3.1:5GT/s support for x1 width (). 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 Active State Power Management (ASPM) Full wake up support ACPI register set and power down functionality supporting D0 and D3 states Power Management controls Power Management Protocol Offload (Proxying) Preboot Execution Environment (PXE) Support TCP/UDP, IPv4 checksum offloads (Rx/Tx) Transmit Segmentation Offloading () (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. System Requirements 19.04 or higher Color: As Shown Material: PC+metal Package Contents: 1 x M.2 B+M Key 2.5Gigabit network adapter-main card 1 x RJ45 Network Connector card-daughter board 1 x 10-Pin Network cable 1 x 4-pin LED cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.