What is the port configuration of the Mellanox IS5023?

The IS5023 features 18 ports with 40Gb QSFP connectors supporting QDR InfiniBand at full bidirectional 40Gb/s per port. This non-blocking setup is ideal for top-of-rack or cluster leaf connectivity, providing high-density interconnects in 1U form factor.

What are the performance specs like throughput and latency?

It delivers 1.4 Tbps switching capacity and 1.44 Tbps aggregate throughput with port-to-port latency under 100ns. Built on InfiniScale IV, it ensures ultra-low latency and congestion-free fabric for HPC and data center applications.

What power and environmental requirements does it have?

Requires AC power supply at 100-240 VAC 50/60 Hz. Operates in 0°C to 45°C temperature and 10% to 90% non-condensing humidity, making it suitable for standard enterprise data center conditions with efficient power usage.

Is this switch managed or unmanaged?

The IS5023 is an unmanaged switch, optimized for fixed edge deployments like top-of-rack. It includes QoS enforcement and hardware-based routing for reliable performance without complex management overhead in small to medium clusters.

What form factor and installation options are available?

1U rackmount chassis with short depth form factor and included rack rails. This compact design integrates easily into dense server racks, supporting connector-side or PSU-side airflow for flexible cooling in enterprise environments.

What technologies does it support for traffic types?

Supports QDR InfiniBand with granular QoS for converged cluster, LAN, and SAN traffic. Features congestion control and maximizes performance by removing fabric bottlenecks, ideal for high-performance computing fabrics.

851-0168 - EMC IS5023 Switch

Name: 851-0168 - EMC IS5023 Switch
Brand: EMC
SKU: 851-0168

851-0168 - EMC IS5023 Switch | US IT Hardware

Product overview

The Mellanox IS5023, SKU 851-0168, is an enterprise-level 18-port QDR InfiniBand switch from the InfiniBand IS5023 product line, branded as Mellanox (EMC OEM). It features 18 ports supporting 40Gb QSFP for full bidirectional bandwidth up to 40Gb/s per port. The switch delivers 1.4 Tbps switching capacity and 1.44 Tbps aggregate throughput with port-to-port latency under 100ns, enabling non-blocking performance in 1U rackmount form factor. Powered by AC supply (100-240 VAC 50/60 Hz), it operates reliably from 0°C to 45°C and 10% to 90% non-condensing humidity. Ideal for top-of-rack leaf connectivity in small to medium clusters, it supports converged LAN/SAN traffic with granular QoS and congestion control. Compatible with InfiniScale IV technology, this unmanaged switch maximizes fabric efficiency for HPC, data centers, and high-speed networking deployments requiring low latency and high density.

18x 40Gb QSFP ports for non-blocking QDR InfiniBand
1.44 Tbps throughput with <100ns port-to-port latency
1.4 Tbps switching capacity in 1U rackmount form
100-240 VAC power supply, 0-45°C operation
Supports converged LAN/SAN with granular QoS
InfiniScale IV technology for ultra-low latency fabrics

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

VCCI Certification
Manufacturer part #	851-0168
Brand	EMC
Condition	New
Model	IS5023
Port Speed	40Gb QSFP
Technology	QDR InfiniBand
EN Standards	EN 61000-3-2, EN 61000-3-3, EN55022 Class A, IEC 60950
Product Line	InfiniBand IS5023
Product Type	InfiniBand Switch
CB Certification	CB
FCC Certification	FCC Class A

Compatible systems

InfiniBand fabric switch for EMC Isilon storage cluster interconnect

EMC Isilon
Model: Various Isilon nodes
Form factor: Datacenter fabric
Generation: NL410, NX series
InfiniBand interconnect for Isilon storage clusters

Best for

HPC Clusters
Delivers 1.44 Tbps aggregate throughput and <100ns latency across 18x 40Gb QSFP ports, ideal for high-performance computing environments requiring non-blocking fabric.
Top-of-Rack Leaf
1U rackmount design with 1.4 Tbps switching capacity suits top-of-rack deployments in small to medium clusters for efficient edge connectivity.
Data Centers
Supports converged LAN/SAN with QoS enforcement and operates in 0-45°C, ensuring reliable performance in enterprise data center infrastructures.
Storage Fabrics
40Gb QDR InfiniBand technology provides low-latency, high-bandwidth interconnects for SAN traffic in storage-heavy applications.

Color	Grey
Depth	2 inches
Width	18 inches
Height	18 inches
Weight	15 lbs
Rack Units	1U
Form Factor	1U rack mount

Operating Humidity	10% to 90%, non-condensing
Operating Temperature	0°C to 45°C

Port Type	SFP/QSFP
Network Ports	18 ports; 40Gb QSFP

EMC IS5023 Switch

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Security

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Switching Capacity	1.4 Tbps
Aggregate Throughput	1.44 Tbps
Port-to-Port Latency	100ns

EMC IS5023 Switch

Product overview

Featuring

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Shop these collections

Network & Communication

Security

Power Consumption

Physical Characteristics

Environmental

Interface/Ports