What is the switching capacity and port configuration of Z9664F-ON?

The Z9664F-ON offers 51.2Tbps full-duplex switching fabric and 10.2Bpps forwarding across 64x 400GbE QSFP56-DD ports. Ports are multi-rate, supporting 10/25/40/50/100/200/400G via breakout cables for up to 256x100GbE, ideal for dense data center aggregation with non-blocking performance.

Does the Z9664F-ON support open networking standards?

Yes, it supports ONIE for zero-touch provisioning of Dell SmartFabric OS10, SONiC, or third-party NOS. This disaggregated architecture allows flexible OS selection, simplifying migrations to software-defined networks in cloud or AI environments.

What are the power and environmental specs for deployment?

Max power draw is 2125W (typ. 500W) with 100-240VAC PSUs; operates 32-113°F (0-45°C). Features 2RU chassis (17.26x24.80x3.45in), redundant 3+1 hot-swap fans, and dual airflow options (I/O-to-PSU or reverse) for hot/cold aisle data centers.

How does Z9664F-ON perform in AI networking use cases?

With sub-850ns latency, 113.66MB buffer, and direct 400GbE to 256 nodes, it excels in low-latency AI distributed training. PTP/1588 sync and non-blocking fabric reduce layers, optimizing GPU interconnects for fine-tuning large models.

What optics and cables are compatible with the ports?

QSFP56-DD ports support 400GbE SR8/SR4.2/FR4/LR4/ER4/ZR transceivers, plus legacy 200/100/40GbE QSFP. Breakout DAC/AOC for 4x100G/2x200G; SFP56-DD for 100/25/10GbE. Full compatibility list in Dell spec sheet.

What redundancy features ensure high availability?

Hot-swappable redundant AC/DC PSUs (2x) and 4-fan modules (3+1). Delivers non-blocking L2/L3 forwarding (156K MAC, 4K VLANs) with packet loss protection, trusted platform module, and RoHS compliance for mission-critical deployments.

Z9664F-ON - Dell Z9664F-ON 51.2Tbps 64x400GbE 2RU Switch

Name: Dell Z9664F-ON 51.2Tbps 64x400GbE 2RU Switch
Brand: Dell
SKU: Z9664F-ON

Z9664F-ON - Dell Z9664F-ON 51.2Tbps 64x400GbE 2RU Switch | US IT Hardware

Product overview

The Dell PowerSwitch Z9664F-ON is a high-density 2RU aggregation switch designed for modern data centers requiring extreme 400GbE performance. It delivers 51.2Tbps full-duplex switching capacity and 10.2Bpps forwarding rate across 64 QSFP56-DD ports, supporting native 400GbE or breakout to 256x100GbE, 10/25/40/50/200G speeds. With sub-850ns latency and 113.66MB packet buffer, it ensures non-blocking wire-speed performance for AI/ML, HPC, and cloud workloads sensitive to packet loss. Key features include open-source ONIE for zero-touch OS installation (SmartFabric OS10, SONiC), hot-swappable redundant power supplies (up to 2125W max), 4+1 fans, and flexible airflow (I/O-to-PSU or PSU-to-I/O). Multi-rate optics/cables compatibility simplifies migrations, while robust L2/L3 features like 156K MAC table, 4K VLANs, and PTP/1588 timing enable scalable spine/leaf architectures. Ideal for reducing network layers in distributed AI training or high-throughput storage fabrics.

51.2Tbps full-duplex switching capacity delivers line-rate performance.
64x 400GbE QSFP56-DD ports support breakout to 256x 100GbE.
Sub-850ns latency ensures minimal delays in high-throughput fabrics.
10.2Bpps forwarding rate handles demanding AI/ML workloads.
ONIE enables zero-touch OS10/SONiC installation flexibility.
Redundant hot-swap PSUs/fans provide high availability.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Certifications
Manufacturer part #	Z9664F-ON
Brand	Dell
Condition	New
Model	Z9664F-ON
VLANs	4K (MSTP: 64 instances)
Timing	PTP/1588, Sync-E compliant
Latency	<850ns port-to-port
NOS Support	ONIE: OS10, SONiC, others
Product Line	PowerSwitch Z-Series
Product Type	400GbE Aggregation Switch
Packet Buffer	113.66MB (56.83MB shared)

Compatible systems

Native ONIE support for major NOS; broad multi-rate optics/cable compatibility with Dell AI fabrics.

Dell PowerEdge
Model: AI-optimized servers
Form factor: 1U/2U rack
Generation: 16G+
Direct 400GbE to GPU clusters

Best for

Data Center Spine
Provides non-blocking 51.2Tbps backbone connectivity for leaf-spine fabrics handling east-west AI traffic.
AI/ML Training
Direct connects up to 256 GPU nodes at 400GbE/100GbE, minimizing latency in distributed fine-tuning clusters.
HPC Environments
Sub-850ns latency and 10.2Bpps forwarding support high-performance computing workloads with PTP timing.
Cloud Provider Aggregation
Multi-rate ports with ONIE/SONiC enable scalable, disaggregated networking for hyperscale deployments.
High-Density Storage
Breakout to 256x100GbE optimizes NVMe-oF/SAN fabrics with low packet loss tolerance.
Enterprise Top-of-Rack
Compact 2RU design with redundant components fits dense ToR roles in hybrid cloud setups.

Details

Shipping, warranty & returns

Customer reviews

No reviews yet — be the first to review this part.

Airflow	I/O Panel to PSU or PSU to I/O
Forwarding Rate	10.2Bpps
Switching Capacity	51.2Tbps full-duplex non-blocking

Max Power	2125W; Typical 500W
Power Supplies	2x hot-swap redundant AC 100-240V 50/60Hz

Fans	4x hot-swap (3+1 redundancy)
Weight	23kg (50.71lbs) with PSUs/fans
Form Factor	2RU Rackmount (17.26x24.80x3.45in / 438.5x630x87.5mm)

Dell Z9664F-ON 51.2Tbps 64x400GbE 2RU Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions