Using 2.5G network card chip, it has low consumption, low latency, more stable transmission, and is not easy to cause packet loss and distortion.The PCIe to 2.5G network adapter supports data transfer rates up to 2.5 Gbps. Combined with the new 2.5GBase-T technology, it is 2.5 times faster than typical Gigabit adapters.The 2.5G network adapter supports three speeds: 2.5Gbps, 1Gbps and 100Mbps.Fits any PCI x1, x4, x8 or x16 slot.The 2.5G network adapter supports Windows 10, Ubuntu 19.04 or later operating systems.PCI 3.1: 5GT/s supports x1 width ().Supports PCI x1, x4, x8 or x16 slots.Integrated /PHY supports 10BASE-Te, 100BASE-TX, 1000BASE-T and 2500BASE-T 802.3 specifications.RJ45 connection: Use CAT5e, CAT6 or CAT6A compatible cables up to 100 meters.IEEE 802.3 auto-negotiationIEEE 802.3x and IEEE 802.3z compliant flow control support with software controllable Rx thresholds and Tx pause framesMulti-queue: 4 Tx and Rx queues per deviceTx/Rx IP, SCTP, TCP and UDP checksum offload (IPv4 IPv6) capabilitiesEnergy Efficient Ethernet (EEE): IEEE 802.3az enabled to reduce consumption, supports 10GBASE-Te (EEE at 10Mbps). Note: Enabled for 2.5, 1GBASE-T and 100BASE-TX in a release.Active State Management (ASPM)Full wakeup supportACPI register settings and down function support D0 and D3 states Management Control Management Protocol Offload (Agent)TCP/UDP, IPv4 Checksum Offload (Rx/Tx)Transport Segmentation Offload () (IPv4, IPv6)low latency interruptsWindows Receive Side Scaling (RSS): Up to four queues per port.Supports packets up to 9.5KB (jumbo frames): Enables faster, more accurate data throughput.Operating temperature 0 C to 55 C (32 F to 131 F)Storage temperature -40 C to 70 C (-40 F to 158 F)Maximum storage humidity: 90% non-condensing relativeLED indicators LINK (steady) and ACTIVITY (flashing)System Requirements: Windows 10/Ubuntu 19.04 or laterColour:blackMaterial:PCBSize: 65.3x44.5mmPackage Contents:1 x Network Card1 x Short Iron PieceOnly 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.