NVIDIA Spectrum SN1900 - 800GbE
Brand: NVIDIA | Category: Network Switches
SKU: SN1900-2S | Part #: SN1900-2S | MPN: SN1900-2S
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About the NVIDIA Spectrum SN1900 - 800GbE
The NVIDIA Spectrum SN1900 - 800GbE (part number SN1900-2S) employs cut-through switching architecture via its NVIDIA Spectrum-1 ASIC, delivering a forwarding rate of 595 Mpps with 800 Gb/s total switching capacity in a compact 1U fixed-configuration form factor. This architecture minimizes latency by forwarding packets immediately upon header inspection rather than buffering entire frames, making it ideal for latency-sensitive datacenter environments. The switch combines 18 QSFP28 ports supporting 40GbE or 50GbE per port with 2 additional 100GbE uplink ports, backed by 16 MB of shared packet buffer memory to handle transient congestion without sacrificing throughput.
NVIDIA Onyx operating system provides comprehensive Layer 2 and Layer 3 protocol support including VLAN, MSTP, LACP, LLDP, DCBX, PFC, ECN at Layer 2, and BGP, OSPF, ECMP, VRF, BFD, and dual-stack IPv4/IPv6 routing at Layer 3. Advanced congestion management via Priority Flow Control, ECN, and Weighted Random Early Detection ensures predictable performance across mixed workloads, while VXLAN bridging and routing overlay capabilities enable flexible multi-tenant and cloud-native deployments. Network engineers and infrastructure architects deploying high-speed datacenter fabrics, storage area networks, or AI cluster interconnects typically select this platform for its deterministic performance and protocol breadth.
The SN1900-2S integrates dual redundant hot-swappable AC power supplies and tool-free hot-swappable fan modules with selectable port-side exhaust or port-side intake airflow configurations, supporting operating temperatures from 0°C to 40°C in diverse deployment scenarios. Out-of-band 10/100/1000BASE-T management, RS-232 console, and USB Type-A ports enable secure lifecycle management independent of data-plane traffic. For detailed specifications, configuration guidance, or to initiate a purchase order for the NVIDIA Spectrum SN1900 - 800GbE, contact Omnixon Global via RFQ.
Technical Specifications
| Brand | NVIDIA |
| Category | Network Switches |
| SKU | SN1900-2S |
| Part Number | SN1900-2S |
| Condition | New |
| Interface | 800GbE |
| Speed | 800GbE |
| Form Factor | 1U fixed-configuration |
| Switching ASIC | NVIDIA Spectrum-1 |
| Total Switching Capacity | 800 Gb/s |
| Forwarding Rate | 595 Mpps |
| 10/25/40/50GbE Ports | 18 x QSFP28 (supporting 40GbE or 50GbE per port) |
| 100GbE Uplink Ports | 2 x QSFP28 |
| Management Port | 1 x 10/100/1000BASE-T out-of-band management |
| Console Port | 1 x RJ-45 RS-232 |
| USB Port | 1 x USB Type-A |
| Network Operating System | NVIDIA Onyx |
| Layer 2 Protocols | VLAN, MSTP, LACP, LLDP, DCBX, PFC, ECN |
| Layer 3 Protocols | BGP, OSPF, ECMP, VRF, BFD, IPv4/IPv6 |
| Overlay Support | VXLAN bridging and routing |
| Congestion Management | Priority Flow Control (PFC), ECN, Weighted Random Early Detection (WRED) |
| Buffer Memory | 16 MB shared packet buffer |
| Power Supply | Dual redundant hot-swappable PSUs (AC) |
| Cooling | Hot-swappable fan modules; port-side exhaust (PSE) and port-side intake (PSI) airflow options |
| Operating Temperature | 0°C to 40°C |
| Dimensions (H x W x D) | 1U, standard 19-inch rack-mountable |
| Automation & Management | NVIDIA UFM, Ansible, REST API, gRPC streaming telemetry, SNMP, Syslog |
Frequently Asked Questions about NVIDIA Spectrum SN1900 - 800GbE
What does the NVIDIA Spectrum SN1900 - 800GbE do?
The NVIDIA Spectrum SN1900 - 800GbE 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 - 800GbE?
Key specifications for the NVIDIA Spectrum SN1900 - 800GbE: 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 SN1900-2S. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the NVIDIA Spectrum SN1900 - 800GbE compatible with my infrastructure?
The NVIDIA Spectrum SN1900 - 800GbE 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.