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Product Line: Mellanox Technologies MSB7790-ES2F
Product Type: Switch
Original price $0.00 - Original price $3,000.00
Original price
$0.00 - $3,000.00
Current price $3,000.00
Title: Used

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Product Description

The MSB7790-ES2F is an InfiniBand switch system featuring a Switch-IB™-based 36-port QSFP28 EDR architecture in a 1U chassis, offering a non-blocking switching capacity of 7.2Tb/s. It supports 9 virtual lanes (8 data + 1 management), a 256 to 4Kbyte MTU, and utilizes QSFP28 connectors compatible with both passive copper and active fiber cables. Designed for efficiency, it includes a hot-swappable fan unit, operates within a temperature range of 0ºC to 45ºC, and consumes a typical power of 122W with passive cables.

Key Feature for the MSB7790-ES2F

  • What is the switching capacity of the Switch-IB™-based 36-port QSFP28 EDR 1U?
    The switching capacity is 7.2Tb/s.
  • Is the Switch-IB™-based system rack mountable?
    Yes, it is designed for 19’’ rack mounting in a 1U chassis.
  • What types of cables are compatible with this InfiniBand switch?
    It supports passive copper or active fiber cables.
  • What are the power requirements for the Switch-IB™-based 36-port QSFP28 EDR 1U?
    It requires an input range of 100-127 VAC, 200-240VAC, with a frequency of 50-60Hz, single phase AC, and draws 4.5A or 2.9A depending on voltage.
  • How does this switch manage congestion?
    It utilizes Adaptive Routing and Congestion Control mechanisms.
  • Can you detail the airflow direction in the Switch-IB™-based 36-port QSFP28 EDR 1U?
    The system is designed with P2C (port to cable) airflow.
  • What is the operating temperature range of this device?
    The operating temperature ranges from 0ºC to 45ºC.
  • Does the Switch-IB™-based 36-port QSFP28 EDR 1U support virtual lanes?
    Yes, it supports 9 virtual lanes: 8 for data and 1 for management.
  • What is the maximum supported MTU size?
    The maximum supported MTU size ranges from 256 to 4Kbyte.
  • Is the fan unit of the Switch-IB™-based 36-port QSFP28 EDR 1U replaceable?
    Yes, it features a hot-swappable fan unit.

Product Review

The Mellanox Technologies MSB7790-ES2F Switch-IB™-based 36-port QSFP28 EDR 1U InfiniBand switch offers a high non-blocking switching capacity of 7.2Tb/s, suitable for demanding data center environments. Its compact 1U form factor with P2C airflow design and compliance with IBTA 1.21 and 1.3 standards ensure efficient space utilization and interoperability in 19'' rack mount setups. However, the requirement for external management might limit its deployment flexibility in scenarios where integrated management capabilities are preferred.


The Mellanox Technologies MSB7790-ES2F represents a high-performance InfiniBand switch system designed to accommodate the demanding requirements of high-throughput computing environments. This 1U switch is built on the Switch-IB™ architecture, featuring 36 QSFP28 Enhanced Data Rate (EDR) ports, offering a substantial non-blocking switching capacity of 7.2Tb/s. Its design is optimized for a 19’’ rack with a short depth, facilitating easy integration into data centers and server rooms with limited space. At the core of its design, the MSB7790-ES2F supports externally managed operations, ensuring seamless integration into existing network infrastructures. It comes equipped with two power supplies (2PS) for redundancy and a P2C airflow scheme for efficient cooling, maintaining operational integrity under various conditions. Compliance with RoHS-6 directives underscores its commitment to environmental sustainability. The switch system's hardware specifications include: - A 1U chassis compatible with standard 19-inch racks, measuring 1.7 inches in height, 16.85 inches in width, and 27 inches in depth, and weighing 11kg (24.2lb), making it suitable for compact spaces. - An input range of 100-127 VAC and 200-240VAC, with a frequency of 50-60Hz, single phase AC, and a typical power consumption with passive cables (ATIS) of 122W. - An operating temperature range from 0ºC to 45ºC and a non-operating temperature range from -40ºC to 70ºC, ensuring reliability across diverse environmental conditions. Key features of the MSB7790-ES2F include: -
  • Nine virtual lanes, comprising eight for data and one for management, allowing for efficient traffic segregation and enhanced network management capabilities.
  • An adaptable routing mechanism and congestion control, which together ensure optimal data flow and network stability under varying loads.
  • A linear forwarding database with 4x48K entries, facilitating rapid data packet processing and delivery across the network.
Additionally, the switch supports a flexible Maximum Transmission Unit (MTU) ranging from 256 to 4Kbyte, accommodating a variety of data sizes for efficient transmission. Port mirroring is available, allowing for enhanced network monitoring and diagnostics. The system is compliant with IBTA 1.21 and 1.3 standards, ensuring interoperability with a wide range of InfiniBand devices and networks. Connectivity options include QSFP28 connectors that support both passive copper and active fiber cables, providing flexibility in network design and expansion. The inclusion of a hot-swappable fan unit further enhances its reliability and ease of maintenance, ensuring uninterrupted operation and minimal downtime. Overall, the Mellanox Technologies MSB7790-ES2F InfiniBand switch system is designed to meet the needs of data centers requiring high bandwidth and low latency networking solutions. Its comprehensive set of features and specifications make it an ideal choice for supporting complex computing workloads and high-performance computing environments.


Part Number and Manufacturer Mellanox Technologies MSB7790-ES2F
Type 36-port QSFP28 EDR InfiniBand Switch, Switch-IB™, 1U
Management External
Switching Capacity 7.2 Terabits per second, non-blocking
Power Supplies Dual
Form Factor Compact design, 1U height for 19’’ rack
Airflow Direction Port to Cable (P2C)
Environmental Compliance RoHS-6
Standards Compliance IBTA 1.21, IBTA 1.3
Virtual Lanes 9 (8 for data, 1 for management)
Maximum Transmission Unit 256 bytes to 4Kbytes
Features Adaptive Routing, Congestion Control, Port Mirroring
Forwarding Database 192K entries (4x48K)
Connector Type QSFP28
Cable Support Passive copper, Active fiber
Dimensions Height: 43.6mm, Width: 428mm, Depth: 685.8mm
Weight 11kg
Power Input 100-127VAC, 200-240VAC
Frequency 50-60Hz, Single Phase
Current 4.5A at 100-127V, 2.9A at 200-240V
Typical Power Consumption 122W with Passive Cables
Operational Temperature Range 0ºC to 45ºC
Storage Temperature Range -40ºC to 70ºC
Cooling Hot-swappable fans

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