Specification Data

CS7500 648-Port EDR InfiniBand Switch-IB™ Series Switch Platform Hardware User Manual

Switch Specification CS7500

Physical Specifications


49" x 19" x 30" inches

1243.8 mm x 482.6 mm x 761.2 mm

The shelf adds 44.45 mm to the height


19” Rack mount

# of spines


# of leafs



214.6 kg (473.1 lb.) empty configuration (no leafs, spines, or management modules)

369.5 kg (814.6 lb.) full configuration

411.0 kg (906.1 lb.) shipped configuration

Accessory Weight

Rail kit: 11.5 kg (25.4 lb.)

Cable supporter (18 shelves): 10 kg (22.0 lb.)

Cable management: 5 kg (11.0 lb.)

Center of Gravity

CoGh: 595.9 mm (from base of chassis)

CoGw: 241.3 mm (from left side surface as one faces the spine side)

CoGd: 359.19 mm (from spine side surface)

Total Max. Airflow

56.6 M3/min (2000 CFM)

SerDes Speeds

10Gb/s, 20Gb/s, 40Gb/s, 56Gb/s, 100Gb/s per port

Connector Types


Power and Environmental Specifications

Input Voltage

180-240 VAC 50-60 Hz

Total Power Consumption EDR

Typical power with passive cables (ATIS): 6367.1W

Maximum: 13531W (includes 648 QSFP ports at 3.5W each)

Max Heat Output

46,170 BTUs/hr


Operating: 0° to 40°C

Non-operating: -40° to 70°C


Operating: 10%-85% non-condensing

Protocol Support

Speed Protocol

InfiniBand: Auto-negotiation of 100Gb/s, 56Gb/s,40Gb/s, 20Gb/s, and 10Gb/s


MLNX-OS and baseboard, performance, and device management agents for full InfiniBand in-band management.

Data Rate

Data Rate: 100Gb/s per port


8 InfiniBand virtual lanes for all ports

Regulatory Compliance






For more compliance information please refer to the Mellanox web site at http://www.mellanox.com/page/switch_certification_matrix.

EMC (Emissions)






For more compliance information please refer to the Mellanox web site at http://www.mellanox.com/page/switch_certification_matrix.

Scalability and Performance

Switching Performance/Capacity

Switching capacity: 130 Tb/s

Switching performance: Simultaneous wire-speed any port to any port

Addressing: 48K unicast addresses max. per subnet and 15.5K multicast addresses per subnet

Leafs: Up to 18 leafs; 36-ports each

Spines: Up to 18 spine boards. All spines are needed for full bi-sectional configuration.

Management modules: 2 available, 1 required for operation

Management CPU: x86

Power supplies: 10 power supplies standard

Leaf and management module fans: 20

Spine fan modules: 36

EMI testing on a fully populated chassis has been performed with the chassis installed in a closed two-door rack with a floor plate using the chassis installation kit supplied by Mellanox Technologies.

For a list of all approved cables please refer to http://www.mellanox.com/page/cables?mtag=cable_overview.

The list of EMC certifications per chassis model type, for different markets in the world, is located on the Mellanox Website at http://www.mellanox.com/page/environmental_compliance > Boards/Systems > Boards/Systems Certification Matrix.

© Copyright 2023, NVIDIA. Last updated on Oct 9, 2023.