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64 Ports 800G Ultra Ethernet Switch for AI/ML/Cloud Data Center/HPC
The CX864E-N switch pre-installed with Enterprise SONiC, it packs cutting-edge features like RoCEv2 and EVPN multihoming, delivering lightning-fast forwarding and massive packet buffers for unmatched performance. Fully UEC-compliant, it offers rich open APIs to seamlessly integrate into diverse data center and HPC ecosystems.
Descriptions
Built to power the most demanding AI training, inference, HPC, and cloud workloads, the CX864E-N Open Ultra Ethernet Switch is a game-changing data center solution. Delivering a massive 51.2 Tbps switching capacity and featuring 64x800G ports, it scales effortlessly to support ultra-large data centers with performance rivaling InfiniBand networks. With industry-leading ultra-low latency of just 560 nanoseconds, the 800GbE switch guarantees deterministic, high-throughput connectivity critical for latency-sensitive AI and HPC applications.
Highlights
- Advanced AI features: WCMP, INT-driven Routing,Packet Spray and more.
- World’s fastest switch with port-to-port latency under 560ns.
- Max TDP of 2200W with 64x800G SR8 ports under full traffic load.
- Large on chip buffer of 200+MB for better RoCE performance.
- 10ns PTP and SyncE performance supports.
- Open AsterNOS based on SONiC with the best SAI support.
- Compatible with heterogeneous GPUs & SmartNICs from various vendors.
- Line-rate programmability to support evolving UEC standards.
- Outstanding performance in AI networks
Specifications
| Ports | 64x 800G, 128x 400G, 256x 200G, 512x 100G | Switch Chip | MARVELL TERALYNX 10 |
| Switching Capacity | 51.2Tbps | Cut-through latency | 560ns |
| Packet forwarding rate | 28700Mpps | Packet Buffer | 200+ MB |
| CPU | Intel Xeon 4/8-core | USB | 1 x USB2.0 |
| RAM | 32GB SODIMM | Console | 1 x Console RJ45 |
| SSD | 256GB M.2 SATA/ NVME | MGMT | 1 x MGMT GE RJ45 |
| Hot-swappable Fans | 4 (3+1Redundancy) | Hot-swappable Power Supplies |
2 (1+1Redundancy) |
| Height | 2U | Dimensions (WxHxD mm) |
440x87x660 |
| Input voltage | 200-240V AC HVDC 200V~320V |
Operating temperature | 0 to 40℃(32 to 104 °F) |
| Maximum power consumption | 2200W (with full ports of 800G-SR8) | Relative humidity | 10% - 90% (non-condensing) |
Connectivity Solutions

800G Spine-Leaf AI Network Fabric

Comparison of Data Center Switches
| CX864E-N | CX732Q-N | CX664D-N | CX564P-N | CX532P-N | |
| Port Speeds | 64x800G, 2x10G | 32x400G, 2x10G | 64x200G, 2x10G | 64x100G, 2x10G | 32x100G, 2x10G |
| Hot-swappable PSUs and FANs | 1+1 PSUs, 3+1 FANs | 1+1 PSUs, 5+1 FANs | 1+1 PSUs, 3+1 FANs | 1+1PSUs, 3+1 FANs | 1+1 PSUs, 4+1 FANs |
| MC-LAG | √ | √ | √ | √ | √ |
| BGP/MP-BGP | √ | √ | √ | √ | √ |
| EVPN | √ | √ | √ | √ | √ |
| BGP EVPN-Multihoming | √ | √ | √ | √ | √ |
| RoCEv2 | √ | √ | √ | √ | √ |
| PFC | √ | √ | √ | √ | √ |
| ECN | √ | √ | √ | √ | √ |
| In-band Telemetry | √ | √ | √ | √ | √ |
| Packet Spray | √ | × | × | × | × |
| Flowlet | √ | × | × | × | × |
| Auto Load Balancing | √ | × | × | × | × |
| INT-based Routing | √ | × | × | × | × |
| WCMP | √ | × | × | × | × |






