<\/p>\n
<\/p>\n
Understanding OSFP Switch Compatibility Requirements<\/strong><\/h2>\nBefore reviewing vendor-specific models, it is essential to understand OSFP form factor variants, as not every module fits every cage.<\/p>\n
<\/p>\n
OSFP Form Factor Variants (IHS, RHS, XD)<\/strong><\/h3>\nOSFP modules come in three primary thermal variants. Each variant matches a different physical cage design on the switch side.<\/p>\n
<\/p>\n
![\"OSFP](\"https:\/\/ascentoptics.com\/blog\/wp-content\/uploads\/2026\/05\/OSFP-Form-Factor-Variants.png\")
<\/p>\n
<\/p>\n
OSFP-IHS (Integrated Heat Sink)<\/strong>: Also called \u201cfinned-top\u201d modules. The module includes integrated cooling fins that work with the switch\u2019s airflow. This is the standard form factor for most switch-side deployments.<\/p>\nOSFP-RHS (Riding Heat Sink)<\/strong>: Also called \u201cflat-top\u201d modules. The module has a flat top; the heatsink is part of the switch cage and rides on the transceiver. RHS is commonly required for NIC-side connections and DGX-style server designs.<\/p>\nOSFP-XD (eXtended Density)<\/strong>: OSFP-XD is an extended-density evolution of OSFP designed for future 1.6T networking generations with improved front-panel density and higher electrical lane speeds.<\/p>\n <\/p>\n
Twin-Port vs Single-Port OSFP Cages<\/strong><\/h3>\nOSFP cages come in two architectures:<\/p>\n
\n- \u2022<\/span>Twin-port (2x400G)<\/strong>: Twin-port OSFP platforms expose a single 800G OSFP interface that can operate either as one 800G link or as two independent 400G logical connections.<\/li>\n
- \u2022<\/span>Single-port (1x400G or 1x800G)<\/strong>: One connection per cage. Typical for NIC-side platforms like NVIDIA ConnectX-7.<\/li>\n<\/ul>\n
<\/p>\n
![\"Twin-Port](\"https:\/\/ascentoptics.com\/blog\/wp-content\/uploads\/2026\/05\/Twin-Port-vs-Single-Port-OSFP-Cage-Architecture.png\")
<\/p>\n
<\/p>\n
Port Density and 1U Configurations<\/strong><\/h3>\nOSFP enables exceptional port density:<\/p>\n
\n- \u2022<\/span>32 OSFP ports per 1U<\/strong>at 400G (12.8 Tbps aggregate)<\/li>\n
- \u2022<\/span>64 NDR 400G ports per 1U<\/strong>with twin-port cages (25.6 Tbps aggregate)<\/li>\n
- \u2022<\/span>Up to 64x800G ports in 2U configurations<\/strong><\/li>\n<\/ul>\n
OSFP generally provides improved thermal headroom compared with QSFP-DD in high-power 800G deployments.<\/p>\n
<\/p>\n
Backward Compatibility with QSFP28<\/strong><\/h3>\nStandard OSFP cages are not mechanically compatible with\u00a0QSFP+, QSFP28 and QSFP-DD, unless the platform specifically supports adapters or hybrid cage designs. Many enterprise environments use mixed QSFP-DD and OSFP deployments during migration periods to maintain backward compatibility with existing 100G infrastructure.\u00a0\u00a0\u00a0\u00a0For broader context on backward compatibility, see our\u00a0QSFP28 compatible switches guide<\/u><\/a>.<\/p>\n <\/p>\n
<\/p>\n
Cisco OSFP Compatible Switches<\/strong><\/h2>\nCisco supports OSFP across selected high-density 400G and 800G platforms, particularly within hyperscale and service provider networking environments.<\/p>\n
<\/p>\n
Cisco Nexus 9000 Series<\/b><\/strong><\/h3>\nSelected Cisco Nexus 9000 platforms support native OSFP interfaces through dedicated high-speed line cards.<\/p>\n
Depending on the configuration, these platforms may support:<\/p>\n
\n- \u2022<\/span><\/strong>400G DR4<\/a><\/li>\n
- \u2022<\/span><\/strong>400G FR4<\/a><\/li>\n
- \u2022<\/span><\/strong>800G DR8<\/a><\/li>\n
- \u2022<\/span><\/strong>2\u00d7400G FR4<\/a><\/li>\n<\/ul>\n
Not all Nexus 9000 systems use OSFP, however. Many earlier 400G Nexus deployments relied primarily on QSFP-DD. Always verify the exact line card and chassis combination before deployment.<\/p>\n
<\/p>\n
Cisco 8000 Series<\/b><\/strong><\/h3>\nSelected Cisco 8000 Series platforms support native OSFP interfaces for high-density 800G networking.<\/p>\n
These systems are primarily targeted at:<\/p>\n
\n- \u2022<\/span><\/strong>hyperscale data centers<\/li>\n
- \u2022<\/span><\/strong>cloud backbones<\/li>\n
- \u2022<\/span><\/strong>service provider transport<\/li>\n
- \u2022<\/span><\/strong>AI infrastructure<\/li>\n<\/ul>\n
Cisco positions the 8000 family as part of its long-term 800G networking roadmap.<\/p>\n
<\/p>\n
Cisco OSFP SKU Naming Convention<\/strong><\/h3>\nCisco uses a structured SKU naming convention that encodes form factor and module type:<\/p>\n
\n- \u2022<\/span>OSFP-XXXG-YY<\/strong>: Standard OSFP variant<\/li>\n
- \u2022<\/span>OSFPR-XXXG-YY<\/strong>: OSFP-RHS (flat-top) variant<\/li>\n
- \u2022<\/span>OSFP-2X400G-YY<\/strong>: Dual 400G breakout module<\/li>\n<\/ul>\n
<\/p>\n
Common examples include\u00a0OSFP-800G-DR8, OSFP-2X400G-FR4\u00a0and OSFP-800G-VR8. When deploying third-party optics, cross-reference vendor qualification lists carefully.<\/p>\n
Need Cisco-compatible OSFP modules?<\/strong>\u00a0Contact our optical engineers<\/u><\/a>\u00a0for SKU cross-references and platform validation.<\/p>\n <\/p>\n
<\/p>\n
Arista Networks OSFP Switches<\/strong><\/h2>\nArista offers one of the broadest OSFP portfolios in Ethernet-based AI and hyperscale networking.<\/p>\n
<\/p>\n
Arista 7060X6 Series<\/strong><\/h3>\nThe Arista 7060X6 family is designed for native 800G OSFP deployments.<\/p>\n
These switches support:<\/p>\n
\n- \u2022<\/span><\/strong>800G DR8<\/li>\n
- \u2022<\/span><\/strong>800G SR8<\/a> \/ 2\u00d7SR4<\/li>\n
- \u2022<\/span><\/strong>2\u00d7400G FR4<\/li>\n
- \u2022<\/span><\/strong>high-density breakout configurations<\/li>\n<\/ul>\n
The 7060X6 series is widely deployed in Ethernet AI fabrics and cloud-scale spine networks.<\/p>\n
<\/p>\n
Arista 7060X5 and 7060X4 Series<\/strong><\/h3>\nArista\u2019s 7060X5 and 7060X4 platforms support high-density 400G networking using OSFP and, in some configurations, QSFP-DD.\u00a0These systems are popular in hyperscale fabrics, cloud data centers, spine-leaf architectures and AI Ethernet clusters. Arista\u2019s EOS ecosystem and broad optics interoperability make these platforms attractive in multi-vendor environments.<\/p>\n
<\/p>\n
Mixed OSFP and QSFP-DD Deployments<\/strong><\/h3>\nMany Arista platforms are available in both OSFP-based variants and QSFP-DD-based variants. This flexibility allows enterprises to balance: thermal performance, optics cost, backward compatibility and migration planning during phased 100G-to-400G upgrades.<\/p>\n
<\/p>\n
<\/p>\n
Juniper Networks OSFP Platforms<\/strong><\/h2>\nJuniper primarily deploys OSFP support in high-capacity routing and transport platforms.<\/p>\n
<\/p>\n
PTX Series<\/b><\/strong><\/h3>\nSelected Juniper PTX platforms support high-density 400G and 800G OSFP interfaces for:<\/p>\n
\n- \u2022<\/span><\/strong>core routing<\/li>\n
- \u2022<\/span><\/strong>internet peering<\/li>\n
- \u2022<\/span><\/strong>transport networks<\/li>\n
- \u2022<\/span><\/strong>metro aggregation<\/li>\n<\/ul>\n
These systems are optimized for carrier-scale environments with very high throughput requirements.<\/p>\n
<\/p>\n
ACX Series<\/b><\/strong><\/h3>\nSelected Juniper ACX platforms support OSFP optics for\u00a05G transport, metro aggregation and service provider edge deployments. OSFP support varies by platform generation and interface card configuration.<\/p>\n
<\/p>\n
MX Series<\/b><\/strong><\/h3>\nSome Juniper MX platforms support high-speed OSFP interfaces for edge routing and WAN connectivity applications.<\/p>\n
These deployments are typically focused on:<\/p>\n
\n- \u2022<\/span><\/strong>enterprise WAN<\/li>\n
- \u2022<\/span><\/strong>provider edge<\/li>\n
- \u2022<\/span><\/strong>high-capacity aggregation<\/li>\n<\/ul>\n
<\/p>\n
<\/p>\n
NVIDIA Quantum-2 and Spectrum-X OSFP Switches<\/strong><\/h2>\nNVIDIA currently has one of the strongest OSFP commitments in the industry, especially in AI infrastructure.\u00a0Both NVIDIA InfiniBand and Ethernet AI platforms rely heavily on OSFP-native architectures.<\/p>\n
<\/p>\n
![\"NVIDIA](\"https:\/\/ascentoptics.com\/blog\/wp-content\/uploads\/2026\/05\/NVIDIA-OSFP-Only-Architecture-for-AI-Workloads.png\")
<\/p>\n
<\/p>\n
NVIDIA Quantum-2 QM9700 and QM9790<\/strong><\/h3>\nThe NVIDIA Quantum-2 QM9700 and QM9790 switches are the dominant InfiniBand NDR platforms used in large-scale AI training clusters.\u00a0Each switch provides 32 twin-port OSFP cages, delivering 64 NDR 400G logical interfaces or 128 NDR200 interfaces via breakout. Total aggregate bandwidth reaches 51.2 Tbps.<\/p>\n
These systems use OSFP exclusively and do not offer QSFP-DD alternatives.\u00a0If you are deploying NVIDIA InfiniBand NDR, OSFP is the standard ecosystem.<\/p>\n
For deeper NVIDIA ecosystem guidance, see our\u00a0OSFP for NVIDIA InfiniBand NDR guide<\/u><\/a>.<\/p>\n <\/p>\n
NVIDIA Spectrum-X Platforms<\/strong><\/h3>\nNVIDIA Spectrum-X switches target Ethernet-based AI networking.<\/p>\n
Recent Spectrum-X platforms support:<\/p>\n
\n- \u2022<\/span><\/strong>native 800G OSFP interfaces<\/li>\n
- \u2022<\/span><\/strong>high-density AI Ethernet fabrics<\/li>\n
- \u2022<\/span><\/strong>large-scale GPU networking<\/li>\n<\/ul>\n
<\/p>\n
These systems are optimized for:<\/p>\n
\n- AI training workloads<\/li>\n
- east-west traffic<\/li>\n
- low-latency Ethernet fabrics<\/li>\n<\/ul>\n
<\/p>\n
Why NVIDIA Standardized on OSFP<\/strong><\/h3>\nNVIDIA\u2019s AI infrastructure platforms generate sustained high-power optical loads during GPU training operations.\u00a0OSFP\u2019s larger thermal envelope and improved cooling capability make it especially suitable for:<\/p>\n
\n- \u2022<\/span><\/strong>800G optics<\/li>\n
- \u2022<\/span><\/strong>AI clusters<\/li>\n
- \u2022<\/span><\/strong>dense GPU fabrics<\/li>\n
- \u2022<\/span><\/strong>high-power optical interconnects<\/li>\n<\/ul>\n
This is one reason NVIDIA standardized heavily on OSFP across both InfiniBand and Ethernet AI architectures.<\/p>\n
<\/p>\n
<\/p>\n
OSFP Compatible Switch Compatibility Matrix<\/strong><\/h2>\nThe complete cross-vendor reference for OSFP compatible switches:<\/p>\n
OSFP modules come in three primary thermal variants. Each variant matches a different physical cage design on the switch side.<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
OSFP-IHS (Integrated Heat Sink)<\/strong>: Also called \u201cfinned-top\u201d modules. The module includes integrated cooling fins that work with the switch\u2019s airflow. This is the standard form factor for most switch-side deployments.<\/p>\n OSFP-RHS (Riding Heat Sink)<\/strong>: Also called \u201cflat-top\u201d modules. The module has a flat top; the heatsink is part of the switch cage and rides on the transceiver. RHS is commonly required for NIC-side connections and DGX-style server designs.<\/p>\n OSFP-XD (eXtended Density)<\/strong>: OSFP-XD is an extended-density evolution of OSFP designed for future 1.6T networking generations with improved front-panel density and higher electrical lane speeds.<\/p>\n <\/p>\n OSFP cages come in two architectures:<\/p>\n <\/p>\n <\/p>\n OSFP enables exceptional port density:<\/p>\n OSFP generally provides improved thermal headroom compared with QSFP-DD in high-power 800G deployments.<\/p>\n <\/p>\n Standard OSFP cages are not mechanically compatible with\u00a0QSFP+, QSFP28 and QSFP-DD, unless the platform specifically supports adapters or hybrid cage designs. Many enterprise environments use mixed QSFP-DD and OSFP deployments during migration periods to maintain backward compatibility with existing 100G infrastructure.\u00a0\u00a0\u00a0\u00a0For broader context on backward compatibility, see our\u00a0QSFP28 compatible switches guide<\/u><\/a>.<\/p>\n <\/p>\n <\/p>\n Cisco supports OSFP across selected high-density 400G and 800G platforms, particularly within hyperscale and service provider networking environments.<\/p>\n <\/p>\n Selected Cisco Nexus 9000 platforms support native OSFP interfaces through dedicated high-speed line cards.<\/p>\n Depending on the configuration, these platforms may support:<\/p>\n Not all Nexus 9000 systems use OSFP, however. Many earlier 400G Nexus deployments relied primarily on QSFP-DD. Always verify the exact line card and chassis combination before deployment.<\/p>\n <\/p>\n Selected Cisco 8000 Series platforms support native OSFP interfaces for high-density 800G networking.<\/p>\n These systems are primarily targeted at:<\/p>\n Cisco positions the 8000 family as part of its long-term 800G networking roadmap.<\/p>\n <\/p>\n Cisco uses a structured SKU naming convention that encodes form factor and module type:<\/p>\n <\/p>\n Common examples include\u00a0OSFP-800G-DR8, OSFP-2X400G-FR4\u00a0and OSFP-800G-VR8. When deploying third-party optics, cross-reference vendor qualification lists carefully.<\/p>\n Need Cisco-compatible OSFP modules?<\/strong>\u00a0Contact our optical engineers<\/u><\/a>\u00a0for SKU cross-references and platform validation.<\/p>\n <\/p>\n <\/p>\n Arista offers one of the broadest OSFP portfolios in Ethernet-based AI and hyperscale networking.<\/p>\n <\/p>\n The Arista 7060X6 family is designed for native 800G OSFP deployments.<\/p>\n These switches support:<\/p>\n The 7060X6 series is widely deployed in Ethernet AI fabrics and cloud-scale spine networks.<\/p>\n <\/p>\n Arista\u2019s 7060X5 and 7060X4 platforms support high-density 400G networking using OSFP and, in some configurations, QSFP-DD.\u00a0These systems are popular in hyperscale fabrics, cloud data centers, spine-leaf architectures and AI Ethernet clusters. Arista\u2019s EOS ecosystem and broad optics interoperability make these platforms attractive in multi-vendor environments.<\/p>\n <\/p>\n Many Arista platforms are available in both OSFP-based variants and QSFP-DD-based variants. This flexibility allows enterprises to balance: thermal performance, optics cost, backward compatibility and migration planning during phased 100G-to-400G upgrades.<\/p>\n <\/p>\n <\/p>\n Juniper primarily deploys OSFP support in high-capacity routing and transport platforms.<\/p>\n <\/p>\n Selected Juniper PTX platforms support high-density 400G and 800G OSFP interfaces for:<\/p>\n These systems are optimized for carrier-scale environments with very high throughput requirements.<\/p>\n <\/p>\n Selected Juniper ACX platforms support OSFP optics for\u00a05G transport, metro aggregation and service provider edge deployments. OSFP support varies by platform generation and interface card configuration.<\/p>\n <\/p>\n Some Juniper MX platforms support high-speed OSFP interfaces for edge routing and WAN connectivity applications.<\/p>\n These deployments are typically focused on:<\/p>\n <\/p>\n <\/p>\n NVIDIA currently has one of the strongest OSFP commitments in the industry, especially in AI infrastructure.\u00a0Both NVIDIA InfiniBand and Ethernet AI platforms rely heavily on OSFP-native architectures.<\/p>\n <\/p>\n <\/p>\n The NVIDIA Quantum-2 QM9700 and QM9790 switches are the dominant InfiniBand NDR platforms used in large-scale AI training clusters.\u00a0Each switch provides 32 twin-port OSFP cages, delivering 64 NDR 400G logical interfaces or 128 NDR200 interfaces via breakout. Total aggregate bandwidth reaches 51.2 Tbps.<\/p>\n These systems use OSFP exclusively and do not offer QSFP-DD alternatives.\u00a0If you are deploying NVIDIA InfiniBand NDR, OSFP is the standard ecosystem.<\/p>\n For deeper NVIDIA ecosystem guidance, see our\u00a0OSFP for NVIDIA InfiniBand NDR guide<\/u><\/a>.<\/p>\n <\/p>\n NVIDIA Spectrum-X switches target Ethernet-based AI networking.<\/p>\n Recent Spectrum-X platforms support:<\/p>\n <\/p>\n These systems are optimized for:<\/p>\n <\/p>\n NVIDIA\u2019s AI infrastructure platforms generate sustained high-power optical loads during GPU training operations.\u00a0OSFP\u2019s larger thermal envelope and improved cooling capability make it especially suitable for:<\/p>\n This is one reason NVIDIA standardized heavily on OSFP across both InfiniBand and Ethernet AI architectures.<\/p>\n <\/p>\n <\/p>\n The complete cross-vendor reference for OSFP compatible switches:<\/p>\nTwin-Port vs Single-Port OSFP Cages<\/strong><\/h3>\n
\n
<\/p>\nPort Density and 1U Configurations<\/strong><\/h3>\n
\n
Backward Compatibility with QSFP28<\/strong><\/h3>\n
Cisco OSFP Compatible Switches<\/strong><\/h2>\n
Cisco Nexus 9000 Series<\/b><\/strong><\/h3>\n
\n
Cisco 8000 Series<\/b><\/strong><\/h3>\n
\n
Cisco OSFP SKU Naming Convention<\/strong><\/h3>\n
\n
Arista Networks OSFP Switches<\/strong><\/h2>\n
Arista 7060X6 Series<\/strong><\/h3>\n
\n
Arista 7060X5 and 7060X4 Series<\/strong><\/h3>\n
Mixed OSFP and QSFP-DD Deployments<\/strong><\/h3>\n
Juniper Networks OSFP Platforms<\/strong><\/h2>\n
PTX Series<\/b><\/strong><\/h3>\n
\n
ACX Series<\/b><\/strong><\/h3>\n
MX Series<\/b><\/strong><\/h3>\n
\n
NVIDIA Quantum-2 and Spectrum-X OSFP Switches<\/strong><\/h2>\n
<\/p>\nNVIDIA Quantum-2 QM9700 and QM9790<\/strong><\/h3>\n
NVIDIA Spectrum-X Platforms<\/strong><\/h3>\n
\n
\n
Why NVIDIA Standardized on OSFP<\/strong><\/h3>\n
\n
OSFP Compatible Switch Compatibility Matrix<\/strong><\/h2>\n
![\"OSFP](\"https:\/\/ascentoptics.com\/blog\/wp-content\/uploads\/2026\/05\/OSFP-Switch-Compatibility-Matrix.png\")
<\/p>\n![\"How](\"https:\/\/ascentoptics.com\/blog\/wp-content\/uploads\/2026\/05\/How-to-Select-the-Right-OSFP-Compatible-Switch.png\")
<\/p>\n