Switch Series & Supported Models
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NVIDIA/Mellanox C8180 (900-9X81E-00EX-ST0) ConnectX®-8 InfiniBand & Ethernet SuperNIC, 800Gb/s XDR Socket-Direct, Single-port OSFP, PAM4 200G/lane, PCIe 6.0 x16, Tall Bracket
P/N: C8180 SKU: 11001
US$2,099.00
Nic Types:
- C8180 800G OSFP224,Single-port,PCIe 6.0 x16
- C8240 400G QSFP112,Dual-port,PCIe 6.0 x16
- C8180X PCIe Auxiliary Card Kit,PCIe 6.0 x16
Quantity:
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30-day return and refund
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3-year warranty
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Available for delivery within 2 days
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Free shipping for orders over
Products Highlight
- 800G XDR InfiniBand Extreme Connectivity
- 200G-per-Lane PAM4 High-Speed Transmission
- PCIe 6.0 x16 Host Interface
- Socket Direct for Faster GPU Communication
- Integrated PCIe Gen6 Switching Capability
- Native InfiniBand and Ethernet Support
Specifications
| Part Number | C8180 (900-9X81E-00EX-ST0) | Adapter Card Size | HHHL |
|---|---|---|---|
| Network Connector Type | 1 × OSFP(RHS) | Network Mode | InfiniBand: 800Gb/s XDR (Default); Ethernet: 2 × 400GbE |
| Host Interface | PCIe 6.0 ×16 | Technology | InfiniBand: RDMA; Ethernet: RoCE |
| Operating Temperature | 0°C to 55°C | Storage Temperature | -40°C to 70°C |
| Environmental Compliance | RoHS compliant | Warranty | 1-Year / 3-Year / 5-Year Support Options Available |
Applications
Certification
Features
Compare Items
| NVIDIA/Mellanox C8180 (900-9X81E-00EX-ST0) ConnectX®-8 InfiniBand & Ethernet SuperNIC, 800Gb/s XDR Socket-Direct, Single-port OSFP, PAM4 200G/lane, PCIe 6.0 x16, Tall Bracket |  NVIDIA/Mellanox C8240 (900-9X81Q-00CN-ST0) ConnectX®-8 InfiniBand & Ethernet SuperNIC, 400Gb/s NDR Socket-Direct, Dual-port QSFP112, PAM4 100G/lane, PCIe 6.0 x16, Tall Bracket | |
|---|---|---|
| Network Connector Type | 1 × OSFP(RHS) | 2 × QSFP112 |
| Network Mode | InfiniBand: 800Gb/s XDR (Default); Ethernet: 2 × 400GbE | InfiniBand: 400Gb/s NDR; Ethernet: 400GbE (Default) |
| Host Interface | PCIe 6.0 ×16 | PCIe 6.0 ×16 |
| Technology | InfiniBand: RDMA; Ethernet: RoCE | InfiniBand: RDMA; Ethernet: RoCE |
| Operating Temperature | 0°C to 55°C | 0°C to 55°C |
| Storage Temperature | -40°C to 70°C | -40°C to 70°C |
Resources
FAQ
Ask a QuestionFind answers to common questions about our products.
Is the NVIDIA/Mellanox C8180 a standard network adapter or a SuperNIC?
The C8180 is a ConnectX-8 SuperNIC designed for high-bandwidth AI, HPC, and next-generation data center networks. It supports both InfiniBand and Ethernet, making it different from conventional single-purpose Ethernet NICs.
What does the ST0 model mean, and is it the same as the DT0 version?
No. The 900-9X81E-00EX-ST0 is the Socket-Direct / PCIe extension version, while DT0 is intended for downstream port extension. They are used in different server architectures and should not be treated as interchangeable.
Can this C8180 card run as 800G InfiniBand and 2×400G Ethernet?
Yes. With its single OSFP cage, the card can support one 800Gb/s XDR InfiniBand port or operate as two 400GbE ports, depending on the configured network mode and platform support.
What is Socket-Direct used for on the C8180 ST0?
Socket-Direct helps distribute PCIe connectivity across the server platform, which is useful in multi-socket or bandwidth-sensitive AI servers. It is mainly relevant when the server design needs higher host-to-NIC bandwidth or optimized CPU locality.
Can the 800G OSFP port connect to NDR or lower-speed InfiniBand links?
The C8180 supports multiple InfiniBand generations including XDR, NDR, HDR, HDR100, EDR, and SDR. Actual link speed depends on the optical module or cable, switch port, firmware, and network configuration.
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