Digitus 2 port 25 Gigabit Ethernet network card SFP28 PCI Express Mellanox chipset

The Digitus DN-10180 is a dual-port 25 Gigabit Ethernet network interface card with SFP28 ports and a PCI Express host interface. Built on a Mellanox chipset, the card supports link rates up to 25 Gb/s per port and is compliant with PCI Express Specification Revisions 3.0, 2.0 and 1.1. It provides advanced offloads and virtualization features for server and workstation networking in data center and high-performance environments.

Advantages

The DN-10180 supports dual-port 25G, 10G or 1Gb/s SFP+ connectivity and auto-negotiation at x8, x4, x2 or x1 PCIe lanes. It implements MSI/MSI-X for efficient interrupt handling and includes jumbo frame support up to 9.6 KB, independent NC-SI SMBus interface, independent standby and wake-on-LAN signals, and hardware-based reliable transport. The card also provides RDMA (PeerDirect/GPUDirect) acceleration, encapsulation/decapsulation hardware offload for NVGRE and VXLAN, and comprehensive TCP/UDP/IP stateless offloads including LSO, LRO and checksum offload.

Suitable for

• High-performance servers and workstations requiring 25G connectivity
• Virtualized environments using SR-IOV and multiple virtual functions
• Data center deployments needing RDMA/RoCE and low-latency networking
• Network overlays and tunnelling with NVGRE or VXLAN offload

Key specifications

• Model: Digitus DN-10180
• Ports: 2 × SFP28 (supports 25G, 10G or 1G via appropriate transceivers)
• Host interface: PCI Express (x8), compliant with PCIe 3.0/2.0/1.1; link rates 2.5/5.0/8.0 GT/s at x8
• Maximum data rate: 25,000 Mbit/s per port (with 25G modules)
• Jumbo frame support: up to 9.6 KB
• Standards: IEEE 802.3by, 802.3az, 802.3ap, 802.3ad, 802.1p, 802.1Q, 802.1Qaz, 802.1Qbb, 802.1Qbg, 802.1AX, IEEE 1588v2
• Virtualization: SR-IOV, up to 256 virtual functions and 8 physical functions per port
• Offloads: RDMA over Converged Ethernet (RoCE), TCP/UDP/IP stateless offload, LSO, LRO, checksum offload
• Other: Independent NC-SI SMBus interface, wake-on-LAN, PXE/iSCSI/UEFI remote boot support
• OS compatibility: FreeBSD, Linux (kernel 5.x and above), VMware 5.5–6.7, Windows Server 2008–2019, Windows 7/8/8.1/10 (32/64 bit)
• Colour/weight: Green/Black, approx. 0.15 kg

How to use

Install the DN-10180 into an available PCIe x8 (or higher) slot on the host system, ensuring the slot supports the required lane width. Fit compatible SFP28 or SFP+ transceivers and connect to the network. Configure BIOS or UEFI settings for remote boot if required (PXE/iSCSI/UEFI). Install vendor or distribution drivers appropriate for your operating system; for Linux use kernels 5.x or newer when possible. Configure network settings, virtualization options (SR-IOV) and offload features according to your server or hypervisor requirements.

Recommendations

For optimal performance in 25G mode use certified SFP28 transceivers and quality fiber cabling, enable relevant hardware offloads and RDMA when supported by the application, and verify driver compatibility with your OS and hypervisor versions before deployment.