MSB7890-ES2F - Mellanox Switches

Mfr. Part #: MSB7890-ES2F
Condition: Refurbished
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MSB7890-ES2F

MSB7890-ES2F - Mellanox Switches

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MSB7890-ES2F Overview

Mellanox Switch-IB 2 based EDR InfiniBand 1U Switch, 36 QSFP28 ports, 2 Power Supplies (AC), unmanaged, standard depth, P2C airflow, Rail Kit MSB7890-ES2F

Overview
MSB7890-ES2F Overview

Mellanox Technologies MSB7890-ES2F, Unmanaged, 100 Gigabit Ethernet, Rack mounting, 1U

Mellanox Switch-IB 2 based EDR InfiniBand 1U Switch, 36 QSFP28 ports, 2 Power Supplies (AC), unmanaged, standard depth, P2C airflow, Rail Kit

Built with Mellanox’s latest Switch-IB™ 2 InfiniBand switch device, EDR uses efficient 64/66 encoding while increasing the per lane signaling rate to 25Gb/s. The SB7890 provides up to thirty-six 100Gb/s full bi-directional bandwidth per port. These stand-alone switches are an ideal choice for top-of-rack leaf connectivity or for building small to extremely large sized clusters.

SB7890 is the world’s first smart network switch, designed to enable in-network computing through the Co-Design Scalable Hierarchical Aggregation Protocol (SHArP) technology. The Co-Design architecture enables the usage of all active data center devices to accelerate the communications frameworks, resulting in order of magnitude applications performance improvements.SB7890 enables efficient computing with features such as static routing, adaptive routing, and congestion control. These ensure the maximum effective fabric bandwidth by eliminating congestion hot spots.

The SB7890 switch has best-in-class design to support low power consumption. ATIS weighted power consumption is 122W for a fully-populated switch. Power is further reduced if not all ports are used or if partially utilized.

Quick Spec

ModelMSB7890-ES2F
Performance
– 36 X EDR 100Gb/s ports in a 1U switch
– 7Tb/s aggregate switch throughput
– 90ns switch latency
– 122W typical power consumption
Optimized Design
– 1+1 redundant & hot-swappable power
– N+1 redundant & hot-swappable fans
– 80 gold+ and energy star certified power supplies
Benefits
– Industry-leading switch platform in performance, power, and density
– Designed for energy and cost savings
– Collective communication acceleration
– Quick and easy setup and management
– Maximizes performance by removing fabric congestions
– Backward compatible to FDR technology

19’’, 36 QSFP28, 1U, EDR 7.2Tb/s, 122W

  • Unmanaged
  • Configuring Location Settings (CLI)
  • Fiber
  • Switching capacity: 7000 Gbit/s
  • 1U Rack mounting

Summary Description

Mellanox Technologies MSB7890-ES2F, Unmanaged, 100 Gigabit Ethernet, Rack mounting, 1U

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Specification

MSB7890-ES2F Specification

MSB7890-ES2F Specification
ModelMSB7890-ES2F
Performance
– 36 X EDR 100Gb/s ports in a 1U switch
– 7Tb/s aggregate switch throughput
– 90ns switch latency
– 122W typical power consumption
Optimized Design
– 1+1 redundant & hot-swappable power
– N+1 redundant & hot-swappable fans
– 80 gold+ and energy star certified power supplies
Benefits
– Industry-leading switch platform in performance, power, and density
– Designed for energy and cost savings
– Collective communication acceleration
– Quick and easy setup and management
– Maximizes performance by removing fabric congestions
– Backward compatible to FDR technology
INFINIBAND SWITCH
– 19’’ rack mountable chassis, 1U with redundant power supplies and fan units
– 36 QSFP non blocking ports with aggregate throughput up to 7 Tb/s (EDR)
SWITCH SPECIFICATIONS
– Compliant with IBTA 1.21 and 1.3
– 9 virtual lanes: 8 data + 1 management
– 256 to 4Kbyte MTU
– Adaptive Routing
– Congestion control
– Port mirroring
– IB Router*
– 4X48K entry linear forwarding data base
CONNECTORS AND CABLING
– QSFP28 connectors
– Passive copper or active fiber cables
– Optical modules
POWER SUPPLY
– Dual redundant slots
– Hot plug operation
– Input range: 100 - 127 VAC, 200-240VAC
– Frequency: 50-60 Hz, single phase AC, 4.5A, 2.9A

Frequently Asked Questions

What is the primary throughput capacity for the Mellanox MSB7890-ES2F switch? +
The MSB7890-ES2F is based on the Mellanox Switch-IB 2 architecture, providing EDR InfiniBand performance. With 36 QSFP28 ports, it supports speeds up to 100Gb/s per port. This high-density, low-latency solution is engineered to handle massive data throughput, making it an ideal candidate for demanding high-performance computing clusters and data center fabric backbones that require robust, deterministic bandwidth.
How does the P2C airflow design impact deployment in my server rack? +
The Port-to-Connector (P2C) airflow configuration is designed for standard hot-aisle/cold-aisle data center deployments. By directing air from the port side to the power supply side, this switch ensures optimal thermal management when installed in a rack with matching airflow cabinets. It is critical to align this switch with the existing cooling orientation of your server environment to maintain hardware longevity and prevent overheating.
Is the MSB7890-ES2F suitable for complex software-defined networking environments? +
As an unmanaged switch, the MSB7890-ES2F functions as a high-speed, plug-and-play fabric layer. While it lacks the granular configuration menus of managed variants, it excels in scenarios where you require simple, high-bandwidth interconnectivity with zero-touch provisioning. It is best deployed in environments where network intelligence is handled by the connected hosts or top-of-rack management systems rather than the switch itself.
What is the physical footprint of this Mellanox 36-port switch? +
The MSB7890-ES2F features a standard depth, 1U rackmount form factor. It includes a dedicated rail kit for secure mounting in standard 19-inch server racks. Its compact design allows for high-density port aggregation while occupying minimal rack unit space, helping organizations maximize floor density in crowded data center environments without compromising on port count or performance.
Does the dual power supply configuration support redundancy? +
Yes, the MSB7890-ES2F comes equipped with two AC power supplies to ensure operational continuity. This redundant power configuration protects the switch against a single power source failure, which is essential for maintaining uptime in mission-critical InfiniBand fabrics. We recommend connecting these power supplies to independent power circuits to fully leverage the built-in resilience of the chassis.
Can I use standard DAC cables with the 36 QSFP28 ports on the MSB7890-ES2F? +
The QSFP28 ports on this switch are designed to support high-speed InfiniBand connectivity, and they are fully compatible with standard QSFP28 Direct Attach Copper (DAC) cables or optical transceivers. These ports provide the physical interface necessary to scale your fabric while ensuring compatibility with standard Mellanox cabling infrastructure for low-latency interconnects between compute nodes and storage arrays.
What kind of management interface does this unmanaged switch utilize? +
This model is categorized as an unmanaged switch, meaning it does not feature an out-of-band management port or a web-based GUI for traffic shaping or VLAN configuration. It provides a transparent, wire-speed InfiniBand fabric connection right out of the box. This simplifies the deployment process significantly for engineers who need immediate network connectivity without the overhead of complex switch management software.
In what types of data center applications is the MSB7890-ES2F most effective? +
This switch is highly effective for high-performance computing (HPC) clusters, machine learning training farms, and latency-sensitive big data analytics. By leveraging the Switch-IB 2 architecture, it provides the low-latency switching fabric required for parallel processing tasks. Its unmanaged nature makes it perfect for leaf-spine architectures where you want a reliable, high-speed physical link that integrates seamlessly with your existing InfiniBand management software.
How can I obtain a bulk quote for multiple MSB7890-ES2F units for our data center expansion? +
For procurement teams looking to outfit an entire server rack or multiple rows of infrastructure, we provide custom bulk pricing solutions. Simply contact our sales department through the BuyRouterSwitch.com quote request portal with your specific quantity requirements. Our team will generate a competitive, itemized proposal to ensure your project stays within budget while securing the high-performance hardware you need.
Why should I choose BuyRouterSwitch.com for my Mellanox hardware procurement? +
BuyRouterSwitch.com is a trusted source for enterprise networking hardware, specializing in authentic Mellanox components. We provide IT buyers with a streamlined, secure ordering experience, ensuring that every piece of equipment arrives as specified. By sourcing from our platform, you benefit from our industry-leading supply chain logistics, allowing you to acquire critical infrastructure components efficiently for your networking projects.

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