51.2T Low Latency Data Center Switch

DCS-O6402ME

64x800G ultra-low latency switch with front-to-rear airflow, hot-swappable PSU and fans. Built for AI/HPC clusters with 51.2 Tbps switching capacity, RoCEv2, INT telemetry, and SeraNOS OS optimized for Ultra Ethernet.

64×800Gb OSFP

Multi-Tenant Isolation

Low Latency

Supports RoCEv2, ECN, PFC, INT

SeraNOS Enterprise OS

Overview

The DCS-O6402ME Open Ultra Ethernet Switch is purpose-built for next-generation AI training, inference, high-performance computing (HPC), and cloud-scale data centers. With an ultra-high switching capacity of 51.2 Tbps and 64 x 800G QSFP-DD800 ports, it delivers InfiniBand-class performance over Ethernet, enabling true end-to-end throughput and ultra-low latency.

Compliant with Ultra Ethernet Consortium (UEC) standards and equipped with open, vendor-neutral APIs, the DCS864E seamlessly integrates into diverse environments with heterogeneous GPUs and NICs. Offering unmatched reliability, scalability, and software-defined openness, it is the optimal switching platform for AI-driven infrastructure at hyperscale.

Features

51.2 T switch with 64 x 800 G OSFP or 128 x 400 G/512 x 100 G in 2 RU
World’s fastest switch with port-to-port latency under 560ns for 800 GE ports
Max TDP of 2200 W with 64 x 800 G SR8 ports under full traffic load
Large on chip buffer of 200+MB for better RoCE (RDMA over Converged Ethernet) performance
10ns PTP and SyncE performance supports strictly synchronized AI parallel computing
Advanced INT (in-band network telemetry) for packet delays, drops, and path traversal, enabling more advanced congestion control algorithms
Open SeraNOS based on SONiC with best SAI support, more robust and reliable.
Compatible with heterogeneous GPUs and SmartNICs from all leading vendors
Line-rate programmability to support evolving UEC (Ultra Ethernet Consortium) standards

Software

Ultra-Low Latency Network

World’s Fastest Switch Silicon: Powered by Marvell Teralynx 10, delivering sub-560ns port-to-port latency for 800G. Ideal for AI/ML, HPC, and NVMe workloads.
Enhanced RDMA Performance: Enables ultra-low latency memory access with optimized microsecond-level performance

Lossless Network

Zero Packet Loss: Built-in RoCEv2 with deep QoS support (ECN, PFC, QCN, DCQCN, DCTCP) ensures lossless Ethernet for high-throughput RDMA.
INT-Based Congestion Visibility: In-band network telemetry monitors latency, drops, and path behavior to support AI-optimized congestion control.

High-Reliability Network

Massive ECMP Support: Up to 8192-way equal-cost multi-path routing for hyperscale resiliency.
MC-LAG with Active Multipathing: Provides multi-chassis redundancy and enhanced bandwidth utilization.
Rapid Failover: Fast link detection with BFD for BGP and OSPF within 50ms.

Time-Sensitive Network

10ns Precision Timing: Supports high-accuracy PTP and SyncE for synchronized AI compute clusters and time-critical workloads.

Open Network

Enterprise SONiC Ready: Integrated with SeraNOS for modular, reliable SAI-based operation.
Future-Proof Programmability: Line-rate programmable to support UEC (Ultra Ethernet Consortium) standards and beyond.

Automated O&M Network

Effortless Operations: Full automation via Python/Ansible for deployment and maintenance.
Zero-Touch Provisioning (ZTP): Auto-fetch and install software/images for rapid out-of-box setup.

Panel Illustration

Specifications

Ports	64x800G / 128x400G/256x200G/512x100G	Switch Chip	Teralynx 10
Switching Capacity	51.2 Tbps	Cut-through latency	560ns
Packet forwarding rate	14.4Bpps of L2/L3 forwarding	Packet Buffer	200+ MB
CPU	Intel Xeon 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	100-240V 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)

51.2T Low Latency Data Center Switch

DCS-O6402ME

64×800Gb OSFP

Multi-Tenant Isolation

Low Latency

Supports RoCEv2, ECN, PFC, INT

SeraNOS Enterprise OS

Overview

Features

Software

Ultra-Low Latency Network

Lossless Network

High-Reliability Network

Time-Sensitive Network

Open Network

Automated O&M Network

Panel Illustration

Specifications

Ports

Switch Chip

Switching Capacity

Cut-through latency

Packet forwarding rate

Packet Buffer

CPU

USB

RAM

Console

SSD

MGMT

Hot-swappable Fans

Hot-swappable Power Supplies

Height

Dimensions(WxHxD mm)

Input voltage

Operating temperature

Maximum power consumption

Relative humidity

Sera Network headquarter

Dimensions
(WxHxD mm)