Winyao WYCX4F2 25G Dual-Port Server Adapter
Winyao WYCX4-F2 network card adapter is based on the NVIDIA / Mellanox ConnectX -4 Lx Ethernet controller and features a PCIe X4 design with onboard two SFP28 Cage. All ports support auto-negotiation 25Gbps speeds and deliver full line-rate 25Gbps & 10Gbps Fiber network connectivity.
The adapter is for Designed for data centers, hyper-converged infrastructure, software-defined storage, NVMe-over-Fabrics storage, and AI/GPU clusters, it uses a PCI Express Gen 3.0 x4 interface to provide two 25GbE SFP28 ports, supporting 25GBASE-SR/LR modules, SFP28 DAC/AOC cables, and backward-compatible SFP+ 10GbE or 1GbE copper/optical modules. It is suitable for dual-port 25G uplinks, distributed storage, RDMA transport, hardware-accelerated overlay networking, SR-IOV direct I/O, and RoCE communication.
Key Features
- NVIDIA / Mellanox ConnectX-4 Lx controller, MT27712
- PCI Express Gen 3.0 x4 at 8.0 GT/s
- Dual SFP28 ports supporting 25GbE / 10GbE / 1GbE, plus SFP+ / copper modules
- Complies with IEEE 802.3by / 802.3ae / 802.3ba for 25GBASE-R / 10GBASE-SR/LR/CR
- Low-profile PCIe card with SPI Flash; RoHS compliant
- NC-SI over MCTP / SMBus sideband connection to BMC / IPMI
Performance Features
- RoCE v1 / v2 RDMA support, plus GPUDirect / PeerDirect acceleration
- Hardware-accelerated overlay networking: VXLAN / NVGRE / GENEVE encapsulation and decapsulation
- Stateless offload: TCP/UDP checksum, TSO / LRO, RSS, and interrupt coalescing
- Hardware-based SR-IOV; per port physical functions and up to 256 virtual functions depending on firmware and driver
- Data Center Bridging: IEEE 802.1Qaz ETS, IEEE 802.1Qbb PFC, IEEE 802.1Qau QCN
- IEEE 1588v2 timing; Jumbo Frame support up to 9.6 KB; IEEE 802.1Q VLAN / QoS
- Storage acceleration: iSCSI, NVMe-oF, and SMB Direct over RoCE
- Remote boot via PXE / UEFI / iSCSI Boot; ACPI power management
- Per-port QoS for compute, storage, and AI traffic classes to reduce CPU overhead
| Product Overview | |
| Main Controller: | NVIDIA/Mellanox ConnectX-4 Lx |
| Bus Interface: | PCI Express v3.0 (8.0 GT/s) x4 |
| Ports: | SFP28 x 2 |
| Speed: | 25GBASE-R / 10GBASE-SR/LR/ER/CR/KR / 1000BASE-X |
| Supported Standards: | IEEE 802.3by / 802.3ae / 802.3ad/802.1AX / 802.1Q/802.1P / 802.1Qau / 802.1Qaz / 802.1Qbb / 802.1Qbg / 802.3az (EEE) · IEEE 1588v2 |
| Supported Cable: | SFP28 optical modules (SR/LR, 850nm/1310nm); SFP28 passive/active DAC copper cable; SFP28 AOC |
| Bracket: | Metal bracket: Full height / Low profile |
| PCB Size (mm): | Approx. 143 x 69 mm |
| Weight (G.W): | |
| Power Consumption: | Approx. 8.9W |
| Temperature: | Operating 0°C ~ 70°C; Storage -40°C ~ 70°C |
| Key Features | |
| Packet Buffers and Stateless Offloads: ? | TSO/LSO + LRO + checksum + RSS + VLAN offload + receive flow steering |
| 25GbE Multi-Rate: ? | Per-port 1/10/25 GbE adaptive; full 25G FEC modes |
| Jumbo Frames: ? | Up to 9.6 KB jumbo frames |
| RDMA / RoCE: ? | RDMA + RoCE v1/v2 (with DCB and congestion control) |
| CPU Offload: ? | Transport CPU offload + end-to-end QoS |
| Overlay Network Hardware Offload: ? | NVGRE + VXLAN + GENEVE + MPLS + QinQ hardware offload |
| Virtualization (SR-IOV): ? | SR-IOV (8 PF + 256 VF/port) |
| Storage Acceleration: ? | NVMe-oF target offload + RDMA storage acceleration |
| Data Center Bridging (DCB): ? | PFC + ETS + QCN + 802.1Qbg |
| Management and Out-of-Band: ? | NC-SI + MCTP over SMBus/PCIe |
| Time Synchronization: ? | IEEE 1588v2 (PTP) |
| High-Performance Acceleration and Boot: ? | PeerDirect/GPUDirect + Tag Matching + Adaptive Routing + PXE 2.0 |
| Management Software | |
| NVIDIA/Mellanox Management Suite: | WinOF-2 — adapter diagnostics, advanced configuration, VLAN and Teaming (specific features depend on driver/Windows version) |
| Operating Systems Support | |
| Operating system support |
Linux: RHEL/CentOS 6.2+ / 7.x / 8.x; SLES 11 SP2+ / 12 / 15 SP2+; Ubuntu 14.04+ / 16.04 / 18.04 / 20.04; Debian 6.0.9+ / 7.x / 10.9 / 11.2 Windows: Windows Server 2012 R2 / 2016 / 2019; Windows 10 / 8.1 VMware: ESXi 5.5 / 6.0 / 6.5 / 6.7 FreeBSD / OFED |