Dell Mellanox ConnectX-4 CX455A 100GbE EDR IB QSFP28 QSFP+ PCIe NIC 0JJN39 JJN39

Dell JJN39 (Mellanox ConnectX-4 CX455A) 100Gb VPI Network Interface Card (NIC)

The Dell JJN39 is a high-performance 100Gb network adapter based on Mellanox (now NVIDIA) ConnectX-4 CX455A technology. Designed for high-performance computing (HPC), enterprise data centers, and advanced storage systems, this Dell-branded NIC delivers exceptional data transfer speeds and low latency for demanding workloads.

Key Features:

• Model: ConnectX-4 CX455A (Dell Part #JJN39 / 0JJN39)

• Connectivity: Single-port 100Gbps network interface

• Interface: PCI Express (PCIe) 3.0 x16 for maximum bandwidth

• Protocols: Virtual Protocol Interconnect (VPI) supporting both 100Gb Ethernet (100GbE) and Enhanced Data Rate (EDR) InfiniBand

• Connector: One QSFP28 port (transceivers and cables sold separately)

• Form Factor: Low-profile plug-in card, ideal for Dell PowerEdge and compact servers

Performance Highlights:

• Dual-mode VPI technology allows seamless switching between InfiniBand and Ethernet modes, providing flexibility for evolving network infrastructures.

• 100Gb EDR InfiniBand support ensures ultra-low latency and high throughput for HPC and large-scale data applications.

• Hardware offload engines reduce CPU overhead, enhancing overall system performance and efficiency.

• Optimized for big data, cloud computing, and storage solutions, ensuring reliable, high-speed data transfer across enterprise environments.

Upgrade your server with the Dell JJN39 Mellanox ConnectX-4 CX455A NIC to achieve superior speed, scalability, and performance in modern data center operations.

Compatibility and Integration

The Dell JJN39 (Mellanox ConnectX-4 100Gb) Network Interface Card is engineered for seamless integration with high-performance Dell PowerEdge servers and enterprise-grade networking hardware. Designed for demanding workloads, it ensures smooth operation in environments requiring 100GbE or EDR InfiniBand connectivity.

Compatible Dell Servers

• Dell PowerEdge Servers: Fully compatible with 13th- and 14th-generation Dell PowerEdge systems (including R640, R740, and newer models) that support PCIe 3.0 x16 slots.
  Ideal for servers handling data analytics, virtualization, HPC, and storage applications.

• Modular Server Platforms: The adapter also fits within Dell modular infrastructures, such as the PowerEdge FX2, supporting flexible, high-bandwidth networking in compact data center designs.

Compatible Networking Equipment

To achieve maximum performance, the JJN39 should be paired with switches and adapters that support 100Gb QSFP28 connectivity.

• 100Gb Switches:

  • Mellanox/NVIDIA Ethernet & InfiniBand switches (supporting 100GbE or EDR InfiniBand)

  • Dell PowerSwitch and Force10 series with 100Gb port capacity

• Server-to-Server Connections: Supports direct links with other Mellanox ConnectX-4 or compatible 100Gb NICs from major vendors.

Required Cables and Transceivers

The Dell JJN39 uses a QSFP28 port and requires separate transceivers or cables, depending on your setup:

• QSFP28 Transceivers:

  • SR4 (Short Reach): For short multi-mode fiber connections

  • LR4 (Long Reach): For single-mode fiber over long distances

• Direct Attach Cables (DACs): Ideal for in-rack connections, cost-effective and simple to deploy

• Active Optical Cables (AOCs): Perfect for long-distance, high-speed data center connections

Software & Operating System Support

The JJN39 is supported by a wide range of enterprise OS environments, including:

• Windows Server

• Linux distributions (e.g., CentOS, Ubuntu, RHEL)

• VMware ESXi

• Citrix XenServer

To ensure peak performance, always install the latest drivers from Dell or NVIDIA.

Compatibility Checklist

Before installation, verify the following:

• PCIe Slot: Available PCIe 3.0 x16 slot in your server

• Network Hardware: 100Gb-compatible switch or peer NIC with QSFP28 ports

• Cabling: Correct QSFP28 DACs, AOCs, or optical transceivers

• Drivers: Latest firmware and drivers for your OS

Other Related Parts Number: 0JJN39, CX455A, 6W1HY, 06W1HY, MCX455A-ECAT-OEM