This card is a 2.5Gbps Ethernet PCI card, using a new original 2.5G network card chip, it has low consumption, low latency, more stable transmission, and is not easy to cause packet loss and distortion.It supports high-performance - networking and full-duplex communication for fast transfer rates up to 2500Mbps, while being compatible with existing Ethernet.Driver Download: https://..cn/content//cn//products/sku/184676/-ethernet-controller-i225v/downloads.html; Driver Download: http://.mmui.com.cn/data/upload//i225.zipSupports PCI x1, x4, x8 or x16 socket. 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 deviceTx/Rx IP, SCTP, TCP, and UDP checksum offloading(IPv4 IPv6) capabilitiesActive State Management (ASPM)Full wake up supportACPI register set and down functionality supporting D0 and D3 states Management controls Management Protocol Offload (Proxying)Preboot Execution Environment (PXE) SupportTCP/UDP, IPv4 checksum offloads (Rx/Tx)Transmit Segmentation Offloading () (IPv4, IPv6)Low-Latency InterruptsReceive 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 RequirementsWindows 10,Windows 11Ubuntu 19.04 or higherLinux (kernel 5.15 and above)Does not support winsever2022Material: PCB+Metalcolour: black + silverPackage Contents:1 x PCI- to 10 /100/1000M/2.5G Ethernet Card1 x Low-profile bracketOnly 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.