Gigabyte N521-WX0 Dual-Port 400GbE OCP 3.0 Network Adapter
Brand: Gigabyte | Category: Network Equipment
SKU: G-N521-WX0-00 | Part #: N521-WX0-00 | MPN: N521-WX0-00
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About the Gigabyte N521-WX0 Dual-Port 400GbE OCP 3.0 Network Adapter
The Gigabyte N521-WX0-00 is a dual-port 400GbE OCP 3.0 network adapter engineered for hyperscale data centers and enterprise environments requiring ultra-high-bandwidth, low-latency connectivity. This card delivers two independent 400GbE ports via QSFP-DD connectors, each capable of backward compatibility with 200GbE, 100GbE, 40GbE, and 25GbE line rates. Built on the NVIDIA/Mellanox ConnectX-6 Dx network controller ASIC and supported by PCIe Gen 4.0 x16 host interface, the N521-WX0-00 integrates advanced offload capabilities—including stateless TCP/IP, UDP, VXLAN, and GENEVE checksum and segmentation—to maximize application throughput while minimizing CPU overhead.
Network engineers and infrastructure teams will find robust feature support essential for modern cloud architectures: RoCE v2 (RDMA over Converged Ethernet) enables low-latency, kernel-bypass communication, while SR-IOV expands scalability with up to 512 virtual functions per port. DPDK support accelerates packet processing for demanding workloads, and NC-SI sideband management via the OCP 3.0 baseplane streamlines out-of-band administration. Gigabyte designed the adapter for deployment across Linux (via MLNX_OFED driver stack) and Windows Server environments, and it meets OCP NIC 3.0, PCIe CEM 4.0, and IEEE 802.3bs compliance standards. Operating temperature range of 0°C to 55°C ensures reliable performance in diverse data center conditions.
Deployment Scenarios
- High-performance computing clusters requiring RDMA-enabled, ultra-low-latency interconnect between compute nodes
- AI and machine learning training infrastructure leveraging DPDK for accelerated collective communication and distributed framework optimization
- Cloud service provider environments consolidating north-south and east-west traffic on a single dual-port adapter per host
- Storage area networks and NVMe-oF deployments benefiting from advanced checksum and segmentation offloads to reduce latency
- Multi-tenant virtualized platforms exploiting SR-IOV to deliver isolated, high-bandwidth virtual network functions to guest workloads
For specifications, compatibility verification, and volume pricing inquiries on the Gigabyte N521-WX0-00, contact the Omnixon Global team via RFQ.
Technical Specifications
| Brand | Gigabyte |
| Category | Network Equipment |
| SKU | G-N521-WX0-00 |
| Part Number | N521-WX0-00 |
| Condition | New |
| Interface | 400GbE |
| Manufacturer Part Number | N521-WX0-00 |
| Form Factor | OCP 3.0 Mezzanine |
| Number of Ports | 2 |
| Port Speed | 400GbE per port |
| Connector Type | QSFP-DD (Quad Small Form-Factor Pluggable Double Density) |
| Speed Compatibility | 400GbE, 200GbE, 100GbE, 40GbE, 25GbE |
| Network Controller ASIC | NVIDIA/Mellanox ConnectX-6 Dx |
| Host Interface | PCIe Gen 4.0 x16 |
| RDMA Support | RoCE v2 (RDMA over Converged Ethernet) |
| SR-IOV | Yes — up to 512 Virtual Functions per port |
| Hardware Offloads | Stateless TCP/IP, UDP, VXLAN, GENEVE checksum and segmentation offload |
| DPDK Support | Yes |
| Operating System Support | Linux (MLNX_OFED driver stack), Windows Server |
| Management | NC-SI sideband management via OCP 3.0 baseplane |
| Operating Temperature | 0°C to 55°C |
| Compliance Standards | OCP NIC 3.0, PCIe CEM 4.0, IEEE 802.3bs (400GbE) |
Frequently Asked Questions about Gigabyte N521-WX0 Dual-Port 400GbE OCP 3.0 Network Adapter
What does the Gigabyte N521-WX0 Dual-Port 400GbE OCP 3.0 Network Adapter do?
The Gigabyte N521-WX0 Dual-Port 400GbE OCP 3.0 Network Adapter 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 Gigabyte N521-WX0 Dual-Port 400GbE OCP 3.0 Network Adapter?
Key specifications for the Gigabyte N521-WX0 Dual-Port 400GbE OCP 3.0 Network Adapter: interface 400GbE; 3 years support; new condition; performance 400GbE adapter with RDMA/RoCEv2 support designed for high-throughput AI cluster fabric and cloud data center east-west traffic; support 3 years standard (manufacturer). Manufacturer part number N521-WX0-00. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the Gigabyte N521-WX0 Dual-Port 400GbE OCP 3.0 Network Adapter compatible with my infrastructure?
The Gigabyte N521-WX0 Dual-Port 400GbE OCP 3.0 Network Adapter 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.