NVIDIA Spectrum SN1900
Brand: NVIDIA | Category: Network Switches
SKU: SN1900-4S | Part #: SN1900-4S | MPN: SN1900-4S
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About the NVIDIA Spectrum SN1900
The NVIDIA Spectrum SN1900 delivers 3.6 Tbps switching capacity and up to 1.5 Bpps forwarding rate, providing line-rate performance for demanding data centre environments. Built on the NVIDIA Spectrum-1 ASIC, this 1U fixed-configuration switch combines exceptional throughput with sub-microsecond cut-through switching latency, eliminating bottlenecks in high-performance cluster interconnects and storage area networks.
The SN1900-4S features 18 x QSFP28 ports operating natively at 100GbE per port, with flexible breakout support enabling 40GbE, 25GbE, and 10GbE connectivity through QSFP28 breakout cables. Network engineers and infrastructure architects benefit from dual operating system support—NVIDIA Onyx (MLNX-OS) and Cumulus Linux—alongside comprehensive Layer 2 and Layer 3 protocol stacks including VLAN, BGP, OSPF, ECMP, VXLAN, and EVPN. Redundant hot-swappable power supplies and configurable airflow (front-to-back or back-to-front) ensure operational resilience across standard data centre environments operating between 0°C and 40°C. Out-of-band management via dedicated RJ-45, USB, and RS-232 console ports simplifies deployment and troubleshooting. The unit meets CE, FCC, UL, and RoHS regulatory compliance standards.
Enterprise Deployment Scenarios
- High-performance computing (HPC) cluster interconnects requiring sub-microsecond latency and 3.6 Tbps aggregate throughput
- Data centre east-west traffic aggregation for storage-intensive workloads leveraging VXLAN and EVPN overlay networks
- Multi-tenant cloud infrastructure with dynamic VLAN segmentation and advanced QoS via DCBX and PFC protocols
- AI and machine learning training environments where low-latency, high-bandwidth inter-node communication is mission-critical
- Spine-and-leaf fabric architectures supporting 100GbE endpoints with flexible port breakout for mixed-speed deployments
For RFQ, compatibility clarification, or deployment planning assistance with the NVIDIA Spectrum SN1900 (part number SN1900-4S), contact the Omnixon Global team today.
Technical Specifications
| Brand | NVIDIA |
| Category | Network Switches |
| SKU | SN1900-4S |
| Part Number | SN1900-4S |
| Condition | New |
| Interface | 100GbE |
| Speed | 800GbE |
| Manufacturer Part Number | SN1900-4S |
| Series | Spectrum |
| ASIC | NVIDIA Spectrum-1 |
| Form Factor | 1U fixed-configuration |
| Total Ports | 18 x QSFP28 |
| Native Port Speed | 100GbE per port |
| Breakout Support | 40GbE, 25GbE, 10GbE via QSFP28 breakout cables |
| Switching Capacity | 3.6 Tbps |
| Forwarding Rate | Up to 1.5 Bpps |
| Latency | Sub-microsecond cut-through switching |
| Supported Network OS | NVIDIA Onyx (MLNX-OS), Cumulus Linux |
| Layer 2 Protocols | VLAN, STP/RSTP/MSTP, LACP, LLDP, DCBX, PFC |
| Layer 3 Protocols | BGP, OSPF, ECMP, VXLAN, EVPN, IPv4, IPv6 |
| Management Interfaces | 1 x RJ-45 out-of-band management, USB, RS-232 console |
| Power Supply | Redundant hot-swappable PSUs |
| Fan Configuration | Hot-swappable, front-to-back or back-to-front airflow options |
| Operating Temperature | 0°C to 40°C |
| Regulatory Compliance | CE, FCC, UL, RoHS |
Frequently Asked Questions about NVIDIA Spectrum SN1900
What does the NVIDIA Spectrum SN1900 do?
The NVIDIA Spectrum SN1900 is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
What are the headline specs of the NVIDIA Spectrum SN1900?
Key specifications for the NVIDIA Spectrum SN1900: new condition; network type Ethernet Switch; network port config 8x 800GbE OSFP; network speed 800GbE; network switching capacity 6.4 Tbps; network forwarding rate 4.76 Bpps; network power consumption 190W. Manufacturer part number SN1900-4S. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the NVIDIA Spectrum SN1900 compatible with my infrastructure?
The NVIDIA Spectrum SN1900 interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.