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NWS8420 Access Switch

NWS8420 Access Switch

【Leading the Era of Supercomputing, Intelligent Cloud-Grade Core Switch】 Specially engineered for ten-thousand-card AI training clusters, delivering jitter-free intelligent AI computing networks.

The NWS8420 is an open core network switch tailored for hyperscale data centers and engineered specifically for ten-thousand-GPU AI training clusters. Boasting an ultra-high bandwidth of 102.4T and congestion-free RoCE protocol, it enables low-latency ful

Product features

  • Ultimate Performance

    Ultra-high bandwidth + dedicated chip: 102.4T ultra-high bandwidth, powered by the Broadcom Tomahawk 5 chip, with 128 ports of 400G QSFP112 all at line-rate forwarding, perfectly matching the high-throughput demands of ten-thousand-card AI clusters.

    Zero-jitter AI network: Supports RoCEv2 lossless communication, with dynamic load balancing + zero-drop design, ensuring stable progress of AI training tasks.

  • Flexible Scalability

    Open ecosystem compatibility: Supports open network systems (ONI) and Sonics/NOS software, balancing flexible deployment with ecosystem adaptability.

    Multi-rate compatibility: QSFP112 ports support downward compatibility with 200G/100G/25G (via optical splitting/BR technology), adapting to the network requirements of different compute nodes.

  • High Stability & Easy Maintenance

    End-to-end redundancy: 2+2 redundant power supplies (1600W), N+1 redundant fans, with military-grade reliability design, suitable for 7×24 high-load operation.

    Extreme energy efficiency design: Ultra-low power consumption (intelligent temperature control + adaptive energy-saving strategies), with robust thermal solutions (customized VC vapor chamber heatsinks + superconducting thermal pads).

Product specification

ModelNWS8420 ToR Switch
Port Configuration128 × 400G QSFP112
Switching capacity102.4Tbps (bidirectional), equipped with Broadcom Tomahawk5 chip
Management ports1×10/100/1000 Base-T MGMT, 1×USB 2.0 Type A, 1×RJ45 Console
Dimension446mm(W) × 800mm(D) × 176mm(H)
Operating Environment0 ℃~40℃，5%~90% RH
CPU & StorageIntel XEON D-1734NT 8C16T (2.0~3.1GHz); Max. 2×DDR4 ECC SO-DIMMs, default 1×16GB; Dual 64MB BIOS Flash240GB M.2 SATA SSD
BMC ManagementRunBMC with AST25201GB DDR4, 8GB eMMC, 2×64MB SPI FW Flash
Power Supply2+2 redundant 1600W CRPS PSUAC input:90~264VAC; HVDC:180~320VDC
FANN+1 redundant with 5 fans, airflow direction: F2B
Port Status LEDQSFP112: 1 LED per port (Red/Green dual-color)
MountingSupports rack rail and lug mounting
WeightApprox. 45kg
EMC/EMIFCC, EN55022, EN61000-3-2, EN61000-3-3 / EN61000-3-11, EN61000-3-12; EN55024, EN300386
Safety regulationsUL/CSA 60950-1, EN 60950-1, IEC 60950-1


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