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Product Line: Mellanox SX6790 InfiniBand Switch
Product Type: Switch
Original price $0.00 - Original price $501.00
Original price
$0.00 - $501.00
Current price $501.00
Title: Surplus

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Product Description

The SX6790 Mellanox switch features a 1.7” (H) x 16.85” (W) x27” (D) dimension and is designed for 19” rack mount installation, supporting a dual 10.80kg PSU configuration. It operates at 40, 56Gb/s per port speeds with a 36 QSFP+ connector cage, ensuring high bandwidth connectivity. Powered by an Intel Celeron 1047UE (x86) CPU, with 16G SSD and 4G SDRAM, the switch delivers a total switching capacity of 2.88Tb/s, with power consumption ranging from 83.55W to 300W.

Key Feature for the SX6790

  • What are the dimensions of the networking hardware?
    The dimensions are 1.7” (H) x 16.85” (W) x 27” (D), or 43.6mm (H) x 428mm (W) x 685.8mm (D).
  • How does the hardware mount?
    It mounts on a 19” rack.
  • What is the weight of the hardware with two PSUs?
    The hardware weighs 10.80kg with two Power Supply Units (PSUs).
  • What speed does each port support?
    Each port supports speeds of 40, 56Gb/s.
  • How many QSFP+ ports does the connector cage have?
    The connector cage has 36 QSFP+ ports.
  • What are the operating and storage temperature ranges?
    Operating temperature ranges from 0° C to 45°C, and storage temperature ranges from -40°C to 70°C.
  • What humidity levels can the hardware operate and be stored in?
    Operating humidity is 10% - 85% non-condensing, and storage humidity is 10% - 90% non-condensing.
  • Up to what altitude can the hardware operate and be stored without issues?
    The hardware can operate and be stored up to 3200m altitude.
  • What are the CPU, memory, and storage specifications?
    The CPU is an Intel Celeron 1047UE (x86), with memory of SSD - 16G (upgradable to 64G on a single SSD slot) and SDRAM - 4G.
  • What is the global power consumption of the device?
    Typical power consumption under “snake” topology with passive cables is 83.55W, maximum with passive cables is 208W, and maximum with active (optical) cables is 300W, assuming QSFP at 2.0W.

Product Review

The Mellanox SX6790 switch offers high-speed connectivity, capable of 40, 56Gb/s per port across 36 QSFP+ connectors, catering to intensive data center demands with a total capacity of 2.88Tb/s. Despite its performance capabilities, the switch is limited by its operating temperature range (0°C to 45°C) and has a relatively high power consumption, reaching up to 300W with active cables. Additionally, the inclusion of an Intel Celeron 1047UE CPU and options for memory expansion up to 64G on a single SSD slot provide flexibility in managing and processing network traffic, but the base memory configurations (16G SSD and 4G SDRAM) may necessitate upgrades for more demanding applications.


The Mellanox SX6790 is a high-performance networking switch designed to meet the demands of data center environments, offering exceptional speed and connectivity options. It features a compact size of 1.7 inches in height, 16.85 inches in width, and 27 inches in depth, making it suitable for standard 19” rack mount installation. The hardware specifications of the SX6790 highlight its capabilities and efficiency in handling high-bandwidth connectivity and intensive data processing tasks. At the core of the SX6790 is an Intel Celeron 1047UE processor, which is built on the x86 architecture, ensuring compatibility with a wide range of software and operating systems. This CPU is complemented by 4G of SDRAM and a 16G SSD for storage, which can be expanded up to 64G on a single SSD slot, offering ample space for system files and applications. The SX6790 boasts a total switching capacity of 2.88Tb/s, enabling high-speed data transmission across networks. This is facilitated by the switch’s 36 QSFP+ connector cages, supporting speeds of 40 and 56Gb/s per port. This high port density and speed capability make the SX6790 an ideal solution for environments requiring high throughput and connectivity. - Speed: 40, 56Gb/s per port - Connector cage: 36 QSFP+ - Capacity: 2.88Tb/s In terms of environmental specifications, the SX6790 is designed to operate within a temperature range of 0°C to 45°C and can be stored in temperatures ranging from -40°C to 70°C. It also operates reliably at a humidity level of 10% to 85% non-condensing and can be stored at a humidity level of 10% to 90% non-condensing. Furthermore, the switch is capable of operating at altitudes up to 3200m, ensuring its performance in various environmental conditions. The Mellanox SX6790 is powered by two PSUs, weighing a total of 10.80kg, and has a global power consumption that varies depending on the configuration and usage. Under a typical ATIS score with a "snake" topology using passive cables, the power consumption is approximately 83.55W. The maximum power consumption with passive cables is 208W, and with active (optical) cables, it can reach up to 300W, assuming each QSFP consumes 2.0W. This switch is built around the Mellanox SwitchX®-2 switch silicon, providing a solid foundation for its networking capabilities. The hardware is designed to deliver not only high performance but also reliability and efficiency in energy consumption, making it a suitable choice for data centers looking to optimize their networking infrastructure. In conclusion, the Mellanox SX6790 stands out for its high port density, speed capabilities, and comprehensive environmental tolerances, alongside its efficient power consumption metrics. With its robust CPU and expandable memory options, the SX6790 is well-equipped to handle the demands of modern data centers, providing a scalable and efficient solution for managing high-volume network traffic and processing.


Part Number/Manufacturer Mellanox SX6790
Dimensions Height: 43.6mm, Width: 428mm, Depth: 685.8mm
Installation Compatible with 19-inch rack
Weight with Dual Power Supply Units 10.80kg
Data Rate per Port 40Gb/s, 56Gb/s
Port Type 36-port QSFP+
Minimum Operating Temperature 0°C
Maximum Operating Temperature 45°C
Minimum Storage Temperature -40°C
Maximum Storage Temperature 70°C
Operational Humidity Range 10% to 85%, non-condensing
Storage Humidity Range 10% to 90%, non-condensing
Maximum Operating Altitude 3200 meters
Maximum Storage Altitude 3200 meters
Processor Intel Celeron 1047UE (x86 architecture)
Core Switching Component Mellanox SwitchX®-2
Storage SSD: 16GB (expandable up to 64GB)
System Capacity 2.88Tb/s switching capacity
Power Consumption (Typical) 83.55W (ATIS score, "snake" topology, passive cables)
Maximum Power with Passive Cables 208W
Maximum Power with Active Cables 300W (assuming QSFP at 2.0W each)

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