20NJD Dell New ConnectX-4 25GbE 2 Port Adapter In Stock

Dell 20NJD ConnectX-4 25GbE 2-Port Network Adapter –In Stock

Upgrade your data centre or enterprise server infrastructure with the high-performance Dell 20NJD ConnectX-4 network adapter. Designed for demanding workloads, this dual-port 25GbE PCIe card delivers exceptional speed, reliability and scalability, making it ideal for virtualisation, storage networks, cloud computing, and high-throughput server environments.

The 20NJD features the Mellanox ConnectX-4 LX chipset (CX4121C), a proven solution trusted by data centres around the world for its low latency and superior throughput. With two SFP28 ports, this adapter allows each link to run at up to 25 Gigabits per second, or be combined through link aggregation to reach up to 50Gbps total bandwidth. Whether you’re building a high-performance storage fabric, enabling RDMA or iSCSI offloads, or simply future-proofing your server for evolving workloads, this adapter provides the enterprise-class features you need.

Its low-profile form factor ensures compatibility with modern rack-mounted servers, while the PCI Express 3.0 x8 interface provides fast communication with your system’s processor and memory, helping eliminate bottlenecks during intensive data transfers.

Key Features of the 20NJD Adapter

• Part number: 20NJD
• Dell-branded, featuring the Mellanox ConnectX-4 LX CX4121C chipset
• Dual-port SFP28 25 Gigabit Ethernet connectivity
• PCIe Gen3 x8 interface for high-bandwidth data access
• Supports advanced features including RoCE (Remote Direct Memory Access), iSCSI boot, TCP/UDP/IP checksum offload, VLAN tagging, jumbo frames, and more
• Low-profile design for compact server installations
• Suitable for virtualised environments, high-performance storage networks, and data-heavy workloads
• High reliability and low latency, designed for 24/7 enterprise uptime

Technical Specifications

• Model: ConnectX-4 LX CX4121C
• Interface: PCI Express Gen3 x8
• Ports: 2 x SFP28
• Ethernet Speed: Up to 25GbE per port
• Form Factor: Low-profile bracket included
• Supported Features: SR-IOV, RoCE v1/v2, iSCSI boot, energy-efficient Ethernet, VLAN support, MSI-X interrupts, link aggregation (LACP), jumbo frames
• Compatibility: Dell PowerEdge servers and other enterprise platforms supporting SFP28

Ideal Use Cases

• Enterprise server deployments requiring ultra-fast networking
• Virtualised systems with multiple VMs needing high bandwidth
• iSCSI SAN environments and storage backbones
• Clusters and high-performance computing (HPC) environments
• Applications that benefit from RDMA and low latency

Condition and Reliability

This is a brand-new Dell original part, fully factory tested and backed by standard manufacturer or supplier warranty. Whether you’re building out a new server setup or upgrading an existing system, the 20NJD offers performance and durability you can rely on.

Order Today

Enhance your server performance and take your networking capabilities to the next level with the Dell 20NJD ConnectX-4 25GbE adapter.