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Product Line: Mellanox IS5000 Series
Product Type: InfiniBand Switch System
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Product Description

The MIS5023Q-1BFR is an InfiniScale® IV QDR InfiniBand Switch featuring 18 QSFP ports and a 1.44Tb/s switching capacity, designed for efficient high-speed data transfer with a port-to-port latency of less than 100ns. This switch supports 9 virtual lanes (8 data + 1 management), adaptive routing, and congestion control, enhancing network management and performance. It operates within a temperature range of 0ºC to 45ºC, supports an input voltage range of 100 - 240VAC, and is compliant with IBTA 1.21, ensuring reliability and interoperability in demanding environments.

FAQs for the MIS5023Q-1BFR

  • What is the switching capacity of the InfiniScale® IV QDR InfiniBand Switch?
    The switching capacity of the InfiniScale® IV QDR InfiniBand Switch is 1.44Tb/s.
  • How many QSFP ports are available on this device?
    The InfiniScale® IV QDR InfiniBand Switch has 18 QSFP ports.
  • What is the port-to-port latency of the InfiniScale® IV QDR InfiniBand Switch?
    The port-to-port latency of the InfiniScale® IV QDR InfiniBand Switch is less than 100ns.
  • Can the power supply of the InfiniScale® IV QDR InfiniBand Switch be considered redundant?
    Yes, redundant power supplies are optional and available with a factory-customized version of the InfiniScale® IV QDR InfiniBand Switch.
  • What are the operational temperature ranges for this device?
    The operating temperature range is from 0ºC to 45ºC, and the non-operating temperature range is from -40ºC to 70ºC.
  • Does the InfiniScale® IV QDR InfiniBand Switch support adaptive routing?
    Yes, the InfiniScale® IV QDR InfiniBand Switch supports adaptive routing.
  • What is the input voltage range for the device?
    The input voltage range is 100 - 240VAC, with a frequency of 50-60Hz, single phase A.
  • Is the InfiniScale® IV QDR InfiniBand Switch compliant with any standards?
    Yes, it is IBTA 1.21 compliant.
  • What are the humidity and altitude specifications for safe operation?
    The operating humidity range is 10% to 90%, non-condensing, and it can operate at altitudes from -60 to 2000m.
  • What additional features does the InfiniScale® IV QDR InfiniBand Switch offer?
    Additional features include congestion control, port mirroring, and 9 virtual lanes (8 data + 1 management).

Product Review

The Mellanox MIS5023Q-1BFR InfiniBand Switch offers a high switching capacity of 1.44Tb/s and impressively low port-to-port latency under 100ns, making it suitable for environments demanding high performance and minimal delay. However, the switch is limited by having only one power supply as standard, though a version with redundant power supplies is available, increasing reliability but requiring factory customization. Additionally, the absence of field-replaceable units (FRUs) could complicate maintenance and repairs, potentially leading to longer downtimes in critical deployments.


The Mellanox MIS5023Q-1BFR is a high-performance switch designed for data center environments requiring efficient, high-speed data transfer capabilities. It is built around the InfiniScale® IV QDR InfiniBand technology, which delivers exceptional throughput and low latency for demanding applications. This switch features 18 QSFP ports, enabling direct connections with high bandwidth and low latency, making it an ideal choice for clusters that demand reliable, fast communication between nodes. One of the key specifications of the Mellanox MIS5023Q-1BFR is its impressive 1.44Tb/s switching capacity, facilitating rapid data transfers and efficient handling of large volumes of data. It also boasts a port-to-port latency of less than 100 nanoseconds, ensuring minimal delay in data transmission, which is critical for applications requiring real-time processing. The switch is designed with a focus on flexibility and efficiency. It includes 9 virtual lanes, 8 for data and 1 for management, allowing for optimized data flow and improved network management. Features such as adaptive routing and congestion control are implemented to enhance performance and reliability under various network conditions. Port mirroring is also supported, enabling the duplication of network traffic for monitoring or analysis purposes. Despite its advanced capabilities, the Mellanox MIS5023Q-1BFR is designed with practicality in mind. It has a short depth form factor, making it suitable for installations with limited space. The switch complies with the RoHS 6 directive, ensuring that it meets current environmental and safety standards. For added convenience, it comes with rack rails for easy installation in standard server racks. Power supply options include a single power supply unit, with an option for redundant power supplies available in factory customized versions. This flexibility ensures that the switch can meet the power redundancy requirements of critical systems. The power input range is broad, accommodating 100 - 240VAC, and the switch operates efficiently in a wide range of environmental conditions, from 0ºC to 45ºC, with a non-operating temperature tolerance from -40ºC to 70ºC. Humidity and altitude operational ranges are also generous, allowing for deployment in diverse environments. Key hardware specifications of the Mellanox MIS5023Q-1BFR include: -
  • 18 QSFP connectors for high-speed interconnects
  • 1.44Tb/s switching capacity for handling large data volumes
  • Port-to-port latency under 100ns for fast data processing
Additionally, the switch is IBTA 1.21 compliant, ensuring compatibility with a wide range of InfiniBand devices and networks. Its design prioritizes both performance and environmental sustainability, with features like connector side airflow outlet to maintain optimal operating temperatures and ensure long-term reliability. Overall, the Mellanox MIS5023Q-1BFR switch is engineered to meet the needs of data centers requiring high-speed, reliable interconnects. Its combination of speed, efficiency, and adaptability makes it a powerful component for enhancing network performance and supporting the demands of modern applications.


Part NumberMellanox MIS5023Q-1BFR
ManufacturerInfiniScale® IV
InterfaceQDR InfiniBand, 18 QSFP ports
Power SupplySingle, with option for redundancy in customized orders
Airflow DirectionConnector side exhaust
Field Replaceable UnitsNone
Mounting OptionIncluded rack rails
Chassis DepthShort
ComplianceRoHS 6
Switching Capacity1.44 Terabits/sec
LatencyLess than 100 nanoseconds port-to-port
StandardsComplies with IBTA 1.21
Virtual Lanes9 lanes (8 data + 1 management)
Management of TrafficCongestion control
Traffic AnalysisPort mirroring available
Connector TypeQSFP
Electrical Input100 - 240 VAC, 50-60Hz, single phase
Operational Temperature Range0ºC to 45ºC
Storage Temperature Range-40ºC to 70ºC
Humidity Tolerance10% to 90%, non-condensing during operation
Operational Altitude-60m to +2000m

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