Dell Mellanox ConnectX-4 CX455A 100GbE EDR IB QSFP28 QSFP+ PCIe NIC 0JJN39 JJN39
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- Specifications
- Description
| Manufacturer Part Number | 0JJN39 JJN39 |
| Manufacturer | Dell Mellanox |
| Condition | Refurbished |
| Standard Warranty | 90 Day Replacement Warranty |
| Item Category | Network Interface Cards (NICs) |
| Model | CX455A |
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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:
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Model: ConnectX-4 CX455A (Dell Part #JJN39 / 0JJN39)
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Connectivity: Single-port 100Gbps network interface
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Interface: PCI Express (PCIe) 3.0 x16 for maximum bandwidth
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Protocols: Virtual Protocol Interconnect (VPI) supporting both 100Gb Ethernet (100GbE) and Enhanced Data Rate (EDR) InfiniBand
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Connector: One QSFP28 port (transceivers and cables sold separately)
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Form Factor: Low-profile plug-in card, ideal for Dell PowerEdge and compact servers
Performance Highlights:
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Dual-mode VPI technology allows seamless switching between InfiniBand and Ethernet modes, providing flexibility for evolving network infrastructures.
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100Gb EDR InfiniBand support ensures ultra-low latency and high throughput for HPC and large-scale data applications.
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Hardware offload engines reduce CPU overhead, enhancing overall system performance and efficiency.
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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
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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.
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100Gb Switches:
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Mellanox/NVIDIA Ethernet & InfiniBand switches (supporting 100GbE or EDR InfiniBand)
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Dell PowerSwitch and Force10 series with 100Gb port capacity
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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:
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QSFP28 Transceivers:
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SR4 (Short Reach): For short multi-mode fiber connections
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LR4 (Long Reach): For single-mode fiber over long distances
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Direct Attach Cables (DACs): Ideal for in-rack connections, cost-effective and simple to deploy
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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:
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Windows Server
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Linux distributions (e.g., CentOS, Ubuntu, RHEL)
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VMware ESXi
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Citrix XenServer
To ensure peak performance, always install the latest drivers from Dell or NVIDIA.
Compatibility Checklist
Before installation, verify the following:
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PCIe Slot: Available PCIe 3.0 x16 slot in your server
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Network Hardware: 100Gb-compatible switch or peer NIC with QSFP28 ports
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Cabling: Correct QSFP28 DACs, AOCs, or optical transceivers
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Drivers: Latest firmware and drivers for your OS
Other Related Parts Number: 0JJN39, CX455A, 6W1HY, 06W1HY, MCX455A-ECAT-OEM