020NJD Dell Refurbished ConnectX-4 25GbE 2 Port Adapter In Stock

Dell 020NJD Refurbished ConnectX-4 25GbE 2-Port Adapter – In Stock

Boost your server’s networking capabilities with the Dell 020NJD Refurbished ConnectX-4 25GbE 2-Port Adapter. This high-performance network interface card (NIC) is a reliable and cost-effective solution for enterprises looking to upgrade their data centre infrastructure without compromising on speed, efficiency, or compatibility.

Built on Mellanox’s proven ConnectX-4 architecture, the 020NJD delivers powerful dual-port 25 Gigabit Ethernet performance, designed specifically for demanding applications such as high-performance computing, cloud networking, and data-intensive workloads. Whether you’re scaling up virtualised environments or deploying large-scale storage systems, this adapter delivers outstanding throughput, low latency, and high efficiency.

Key Features of the Dell 020NJD Adapter

• Part Number: 020NJD (also known as Dell 20NJD)
• Manufacturer: Dell (Mellanox-based solution)
• Model: ConnectX-4 Lx CX4121C
• Condition: Professionally refurbished and tested
• Form Factor: Low-profile PCIe plug-in card
• Interface: PCI Express 3.0 x8 (backward compatible)
• Ports: 2 x 25GbE SFP28
• Data Rate: Up to 25 Gigabits per second per port
• Compatibility: Works with a wide range of Dell PowerEdge servers including R630, R640, R740, R740xd, C6420, and NX3240
• Network Protocols: Supports TCP/UDP/IP offloading, RDMA over Converged Ethernet (RoCE), VLAN tagging, jumbo frames, QoS, LACP, and more
• Cooling: Passive heatsink for reliable thermal performance
• Warranty: 90-day replacement warranty

Designed for High-Speed Enterprise Networking

The 020NJD ConnectX-4 Lx adapter enables next-generation performance for today’s most demanding IT environments. With support for 25 Gigabit Ethernet via dual SFP28 ports, it’s perfect for high-speed data transfers, clustered applications, and virtualised infrastructure.

This adapter reduces CPU overhead by offloading advanced networking tasks like RDMA, checksum calculations, and segmentation. As a result, your servers can handle more transactions and processes without lag — improving both speed and energy efficiency across the board.

Enterprise-Grade Compatibility and Versatility

Fully compatible with a wide array of Dell PowerEdge systems, the 020NJD is designed for seamless integration. It fits into standard PCIe 3.0 slots and supports both full-height and low-profile brackets, making it suitable for dense server environments.

Whether you’re building out a private cloud, expanding your virtual machines, or running bandwidth-intensive applications, this refurbished Dell adapter ensures high-speed, low-latency network performance without the hefty cost of new hardware.

Typical Use Cases

• Data centre expansion and modernisation
• High-performance computing (HPC) clusters
• Storage area networks and NAS solutions
• Virtualisation and private cloud environments
• Financial and enterprise data applications requiring ultra-low latency

Why Choose the 020NJD Refurbished Network Adapter?

Choosing the 020NJD refurbished adapter offers the perfect balance between performance and cost. Each unit is carefully inspected, tested, and verified for quality, ensuring it meets strict enterprise standards. Backed by a 90-day warranty, it provides peace of mind and outstanding value for IT teams looking to optimise budget and performance.

Order Today

Ready to upgrade your servers with ultra-fast 25GbE connectivity? The refurbished Dell 020NJD adapter is in stock now and available for immediate dispatch. Enjoy performance, reliability, and savings in one powerful solution.