NVIDIA ConnectX-4 Lx EN
Network adapter | PCIe 3.0 x8 | 25 Gigabit Ethernet x 1
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Main Specification
| Product Description | NVIDIA ConnectX-4 Lx EN - network adapter - PCIe 3.0 x8 - 25 Gigabit Ethernet x 1 |
|---|---|
| Device Type | Network adapter |
| Form Factor | Plug-in card |
| Interface (Bus) Type | PCI Express 3.0 x8 |
| PCI Specification Revision | PCIe 1.1, PCIe 2.0, PCIe 3.0 |
| Ports | 25 Gigabit Ethernet x 1 |
| Data Link Protocol | 25GbE |
| Data Transfer Rate | 25 Gbps |
| Network / Transport Protocol | TCP/IP, UDP/IP, iSCSI |
| Compliant Standards | IEEE 802.1Q, IEEE 802.1p, IEEE 802.3ad (LACP), IEEE 802.3ae, IEEE 802.3az, IEEE 802.1Qbb, IEEE 802.1Qaz, IEEE 802.1Qau |
General
| Device Type | Network adapter |
|---|---|
| Form Factor | Plug-in card |
| Interface (Bus) Type | PCI Express 3.0 x8 |
| PCI Specification Revision | PCIe 1.1, PCIe 2.0, PCIe 3.0 |
Networking
| Ports | 25 Gigabit Ethernet x 1 |
|---|---|
| Connectivity Technology | Wired |
| Data Link Protocol | 25 Gigabit Ethernet |
| Data Transfer Rate | 25 Gbps |
| Network / Transport Protocol | TCP/IP, UDP/IP, iSCSI |
| Remote Management Protocol | RMON 2, RMON |
| Features | Auto-negotiation, VLAN support, DiffServ support, priority-based flow control, TCP/IP offloading, QoS, Jumbo Frames support, RDMA support, LACP, Energy Efficient Ethernet, MIB, tagged VLAN, MSI-X |
| Compliant Standards | IEEE 802.1Q, IEEE 802.1p, IEEE 802.3ad (LACP), IEEE 802.3ae, IEEE 802.3az, IEEE 802.1Qbb, IEEE 802.1Qaz, IEEE 802.1Qau |
Expansion / Connectivity
| Interfaces | 1 x 25Gb Ethernet |
|---|
Miscellaneous
| Compliant Standards | RoHS |
|---|
Product features
Multi-host technology
Innovative NVIDIA multi-most technology enables data centers to design and build scale-out heterogeneous compute and storage racks, with direct connectivity between compute elements and the network.Overlay networks
In order to better scale networks, data center operators create overlay networks to encapsulate traffic from individual virtual machines over logical tunnels such as NVGRE and VXLAN. This solves network scalability issues, but places higher loads on the CPU. ConnectX-4 Lx offloads overlay networks from the CPU.RDMA over converged Ethernet
ConnectX-4 Lx supports RoCE specifications delivering low-latency and high- performance over Ethernet networks. RoCE provides efficient low-latency RDMA services over layer 2 and layer 3 networks.Key selling points
- Hardware-based I/O virtualization
- Multi-host technology
- Connectivity to 4 independent hosts
- Low latency RDMA over converged Ethernet
- CPU offloading of transport operations
References
MPN: MCX4111A-ACAT
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03/06/2026 23:55:00