Unlock AI and HPC At Scale - CN5000 Switch Delivers Unmatched Performance, Scalability, and Efficiency
As AI and HPC workloads grow in complexity high-bandwidth networking becomes essential. The Cornelis CN5000 Omni-Path Switch is designed to meet the extreme scalability and performance demands of modern compute environments, ensuring rapid results and maximizing infrastructure investments.
The CN5000 Switch delivers lossless, congestion-free networking at scale, supporting up to 500,000 endpoints through key architectural features: credit-based flow control, link-level retransmissions, fabriclevel congestion management, and multipath routing without in-order delivery constraints. These innovations ensure low tail latency, eliminate packet loss, and drive higher compute utilization and lower TCO.
The CN5000 Switch delivers 400G of bandwidth per port and is purposebuilt for AI training, inference, and large-scale HPC performance demands.
It provides ultra-low latency and congestion-free throughput, accelerating time-to-results for generative and agentic AI workloads. With exceptional efficiency and architectural robustness, CN5000 switches are the ideal fabric for parallelized compute environments and mission-critical HPC applications
Consistent, reliable network performance is critical for AI and HPC applications. The CN5000 Switch enhances system-wide efficiency with advanced error correction and dynamic workload-aware traffic management, ensuring adaptability to changing communication patterns and sustained performance under load.
Equipped with cutting-edge telemetry capabilities, the CN5000 Switch provides real-time network insights and fine-grained visibility to optimize workload performance.
By continuously analyzing traffic patterns, identifying congestion points, and dynamically adjusting network flows, it ensures smooth, highefficiency operation—even in the most complex compute environments. With industry-leading precision network intelligence, CN5000 Switches
CN5000 Architecture delivers lossless and congestion-free data transmission with credit-based flow control and dynamic fine-grained adaptive routing. It is designed for maximum performance, reliability, scalability, and data integrity with dynamic lane scaling and optimized link protection.
The CN5000 Switch requires the use of CN5000 SuperNICs to fully enable its congestion-free, lossless operation at scale. This solution is supported by Cornelis’ open-source host software and integrates with standard HPC and AI environments with minimal modification.
Performance that scales with your cluster
Real-time network visibility and control
Supports >100K node clusters
48 ports of 400G
38.4T full duplex bandwidth
> 800 million packets/s
< 1 us MPI latency
Optimization for message rate and latency
Virtual lanes (VLs): Configurable from one to four VLs plus one management VL
QSFP112 Quad Small Form Factor Pluggable cabling
Low-Latency bit error recovery and optional correction
Security (Secure key EEPROM, Secure Boot)
Air and liquid cooling options
Hot swap, field replaceable (FRUs): fan & power supply
Fine-Grained Adaptive Routing (FGAR)
Static Dispersive Routing (SDR)
Lossless, congestion-free networking through fabric-wide adaptive routing and incast-aware flow control
Integrated OpenBMC-based management
Redfish protocol and data model/schema support
In-band and out-of-band management options Command line interface through 10/100/1000 BASE-T Ethernet
| Bandwidth | 400G |
| Fabric Ports | 48 x 400G QFSP112 ports |
| Chassis Dimensions | 1.7H x 17.2W x 26.1D in. 4.3H x 43.7W x 66.3D cm |
| Input Range | 200-240, 277 VAC, 50/60 Hz |
| Cooling Options | Air- and Liquid-Cooled (Fluids: DI, PG, & MEG) |
| Weight | Air Cooled -AC Power: 30.80 lb. (13.97 kg) -DC Power: 30.40 lb. (13.79 kg) Liquid Cooled |
| Power Consumption (Typ/Max)* | DAC AOC |
| Item Name | Item Number | Item Description |
|---|---|---|
| CN5SWE48G2WP | 980173 | 48-Port, 240/277 VAC in, Dual Power Supply, Liquid-Cooled, Port-to-Fan |
| CN5SWE48G2WF | 980172 | 48-Port, 240/277 VAC in, Dual Power Supply, Liquid-Cooled, Fan-to-Port |
| CN5SWE48G2AP | 980188 | 48-Port, 240/277 VAC in, Dual Power Supply, Air-Cooled, Port-to-Fan |
| CN5SWE48G2AF | 980076 | 48-Port, 240/277 VAC in, Dual Power Supply, Air-Cooled, Fan-to-Port |
| CN5SWE48D2WP | 980201 | 48-Port, 48 VDC in, Dual Power Supply, Liquid-Cooled, Port-to-Fan |
| CN5SWE48D2AP | 980200 | 48-Port, 48 VDC in, Dual Power Supply, Air-Cooled, Port-to-Fan |
US/Canada | NRTL 62368-1, CSA 22.2.No. 62368-1 |
Europe | EN62368-1 |
International | CB Scheme: IEC 62368-1 |
Temperature | Operating: 10° to 35° C (derated 1 °C/175 m above 900 m) Storage: -40° to 70° C |
Humidity | Operating: 5% to 85% non-condensing Storage: 5% to 95% non-condensing |
Altitude | Operating: 0 to 3,000 m Non-operating: 0-12,000m |
US | FCC Part 15, Subpart B, Class A, |
Canada | CAN ICES-3(A)/NMB-3(A) Issue 7 |
Europe | EN55032 (CISPR32) EN55035 (CISPR35) EN61000-3-2 EN61000-3-3 |
Japan | VCCI, Class A |
New Zealand/ | CISPR 32, Class A |
Korea | Emissions: KS C 9832 Class A Immunity: KS C 9835 |
Taiwan | BSMI (CNS 15936) Class A |
RoHS | RoHS Directive 2011/65/EU2, RoHS Directive 2015/863 |
REACH | REACH Regulation (EC) No 1907/2006 |
From training large language models and powering agentic AI frameworks, to real-time fraud detection in finance and computer vision in autonomous systems - CN5000 Omni-Path AI solutions deliver the high-performance, lossless networking foundation that next-generation AI demands.
Push the boundaries of scientific discovery and engineering innovation with CN5000 Omni-Path-based HPC solutions. From advancing climate modeling and seismic analysis, to accelerating simulation and design in aerospace and automotive, and enabling complex genomic research in life sciences, CN5000 Omni-Path solutions power breakthrough results—faster, smarter, and at scale.
