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Mellanox SB7800
Mellanox SB7800 Switch-IB 2 Managed EDR Switch

Dell Mellanox SB7800 Switch

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The Mellanox SB7800 family of InfiniBand top-of-rack switches deliver high performance and port density with complete fabric management solutions. Take advantage of these opportunities:

  • Enable compute clusters and converged data centers to operate at any scale while reducing operational costs and infrastructure complexity.
  • Choose from a portfolio of cost-effective Edge switches supporting 100Gb/s speeds and 36 non-blocking ports

Mellanox Switch IB-2™ InfiniBand EDR 100Gb/s Switches are an ideal choice for top-of-rack leaf connectivity or for building small to extremely large sized clusters.

Maximum efficiency with static and adaptive routing

SB7800 switches offer static routing, adaptive routing and advanced congestion management to ensure the maximum effective fabric bandwidth and eliminate congestion hot spots. They are optimized for industry-standard racks and leading scale-out computing solutions.

Mellanox switches use industry-standard InfiniBand technology to provide scalable fabric to power some of the largest and fastest high-performance computing systems and next-generation data centers. SB7800 switches offer:

  • Industry-leading performance, power and density
  • Energy and cost efficiency
  • Quick and easy fabric management for cluster and converged I/O applications

Multiple subnets with InfiniBand

Mellanox InfiniBand Smart Switch devices can provide up to 100Gb/s and full bidirectional bandwidth per port, thus enabling multiple subnets using InfiniBand.

High-performing solutions with error-free fabrics

SB7800 and SB7890 switch systems deliver 7.2Tb/s of non-blocking bandwidth with 90ns port-to-port latency at an excellent price. Get 36 ports at 100Gb/s per port and build clusters that can scale out to hundreds of nodes.

  • InfiniBand switches deliver high bandwidth with low latency to get the highest server efficiency and application productivity, ideal for HPC applications
  • The Mellanox smart switch enables in-network computing through the Co-Design SHArP technology.
  • Mellanox Unified Fabric Manager (UFM) ensures optimal cluster and data center performance with high availability and reliability


Mellanox SB7800 Switch-IB™ 2 Managed EDR Switch Specifications


36 X EDR 100Gb/s ports in a 1U switch
7Tb/s aggregate switch throughput
Up to 7.02 billion messages-per-second
90ns switch latency
136W typical power consumption
Collective offloads (SHArP)


1+1 redundant & hot-swappable power
N+1 redundant & hot-swappable fans
80 gold+ and energy star certified power supplies
Dual-core x86 CPU


ATIS Weighted Power Consumption: 136W
Max Power Consumption (class 4): 281W

Dual redundant slots
Hot plug operation
Input range: 100 - 127 VAC, 200-240 VAC
Front-to-rear or rear-to-front cooling option
Hot-swappable fan unit

Frequency: 50-60Hz, single phase AC, 4.5A, 2.9A

Regulatory Compliance



Connectors and Cabling

QSFP28 connectors
Passive copper or active fiber cables
Optical modules


Form: 19’’ rack mountable 1U chassis
Dimensions: 1.7’’ (43.6 mm) H x 16.85’’(428mm) W x 27’’ (685.8mm) D
Weight: 11kg (24.2 Lb)
Ports: 36
Link Speed: up to 7 Tb/s (EDR) aggregate data throughput
Interface type: QSFP28 non-blocking
Management Ports: Dual 100/1000 Ethernet ports
RS232 port over DB9
USB port
Familiar Industry Standard CLI
Management over IPv6
Management IP
SNMP v1,v2,v3
Web UI

Environmental Operating Conditions

Operating: 0ºC to 45ºC
Non-Operating: -40ºC to 70ºC

Operating -60 to 3200m

ISO 7779
ETS 300 753

Humidity: Operating 5% to 95% Others:
RoHS-6 compliant>

Switch Attributes

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 database

Pricing Notes: