NY9FP - Dell PowerSwitch S4128F-ON Switch

Name: NY9FP - Dell PowerSwitch S4128F-ON Switch
Brand: Dell
SKU: NY9FP
Price: 2025 USD
Availability: InStock

NY9FP - Dell PowerSwitch S4128F-ON Switch | US IT Hardware

Product overview

The Dell PowerSwitch S4128F-ON is a high-density 1RU top-of-rack (ToR) switch engineered for enterprise data centers and cloud infrastructure. It combines 28x10GbE SFP+ ports with 2x100GbE QSFP28 ports, delivering 960Gbps full-duplex non-blocking switching fabric with 720Mpps throughput. The QSFP28 ports support multi-rate operation (10/25/40/50/100GbE), enabling flexible uplink configurations and future-proofing. With Layer 2 and Layer 3 management capabilities, advanced features include VXLAN gateway functionality, DCB convergence, and remote port mirroring. Dual hot-swappable 550W power supplies and four redundant fan modules ensure high availability. Typical power consumption is 160W with maximum 260W. The switch runs Dell EMC Networking OS10 and supports SAI (Switch Abstraction Interface) for open networking deployments. Ideal for hyperscale data centers, cloud service providers, and enterprises requiring high-density 10GbE connectivity with 100GbE uplink capacity.

960Gbps full-duplex non-blocking switching fabric.
28x10GbE SFP+ ports plus 2x100GbE QSFP28 uplinks.
QSFP28 multi-rate support: 10/25/40/50/100GbE.
VXLAN gateway with line-rate overlay bridging.
Dual 550W hot-swappable PSUs, 4 redundant fans.
Layer 2/3 managed with SAI and OS10 OS.

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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

BIOS Version
Manufacturer part #	NY9FP
Brand	Dell
Condition	Refurbished
Managebar	Supported
Model Name	Dell PowerSwitch S4128F-ON
OS Version	10.5.0.0 and later
Slave CPLD	0.7
Fan Modules	4 redundant hot-swappable fan modules
Master CPLD	0.10
System CPLD	0.4
Airflow Type	Front-to-rear (IO to PSU)

Compatible systems

The Dell S4128F-ON integrates seamlessly into standard 19-inch data center racks and supports both proprietary Dell EMC OS10 and open networking platforms via SAI. Transceiver compatibility is flexible (fiber or copper SFP+, multi-rate QSFP28), enabling deployment in heterogeneous environments. Requires dual 550W power circuits and standard data center cooling.

Dell EMC PowerSwitch S-Series
Model: S4128F-ON
Form factor: 1U Rack-Mountable
Generation: Current
Standalone switch; integrates into Dell EMC networking ecosystem and third-party open networking platforms via SAI.
Generic Data Center Infrastructure
Model: Any 19-inch standard rack
Form factor: 19-inch EIA rack
Generation: Standard
Compatible with any standard data center rack with adequate power and cooling; requires dual 550W PSU circuits.

Best for

Data Center Top-of-Rack (ToR)
Primary deployment as leaf switch in data center spine-leaf architecture, connecting 28 servers at 10GbE with dual 100GbE uplinks to spine layer for east-west traffic optimization.
Cloud Service Provider Networks
Multi-tenant cloud infrastructure requiring high port density, VXLAN overlay support, and line-rate performance for virtual machine traffic isolation and dynamic workload placement.

Details

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Product Line	PowerSwitch S-Series

Product Type	Managed Ethernet Network Switch

Layer Support	Layer 2 and Layer 3 managed

VXLAN Gateway	Yes, with line-rate bridging and routing

Use Case - HPC	High-performance computing clusters with low-latency inter-node communication

Fans per Module	1 fan per module

Switching Fabric	Non-blocking, cut-through switching

Use Case - Cloud	Multi-tenant cloud infrastructure with VXLAN overlay support

Hardware Revision	A02

Mounting Hardware	Rack rails included

Part Number (DPN)	NY9FP

Switching Capacity	960Gbps full-duplex non-blocking

Use Case - Storage	Converged networks with DCB support for iSCSI, FCoE, NVMe-over-Fabrics

Deployment Scenario	Top-of-rack (ToR) switch for data center leaf layer

Redundancy Features	Dual hot-swappable PSUs, 4 redundant fan modules, N+1 power and cooling

Supported Protocols	ARP, VLAN, VXLAN, PTP, RPM, ERPM, SAI, DCB, CLI, SNMP

Transceiver Support	Fiber optic (SR/LR/ER/ZR) and copper (10GBASE-T) SFP+; multi-rate QSFP28 modules

Maximum 10GbE Density	36 ports (28 SFP+ + 8 via QSFP28 breakout)

Maximum 25GbE Density	8 ports via QSFP28 breakout

Maximum 40GbE Density	2 ports

Maximum 50GbE Density	4 ports

Breakout Cable Support	QSFP28 to 4x SFP28 or 4x 25GbE breakout cables

Maximum 100GbE Density	2 ports

Non-Blocking Architecture	Yes, full-duplex cut-through switching

Data Center Bridging (DCB)	Supported for converged networks

Control Plane Services (CPS)	Supported

Power Over Ethernet (PoE)	Not supported

Management Protocol	CLI, web-based, SNMP
Precision Time Protocol (PTP)	Supported

Power Supply Units	2x 550W hot-swappable redundant PSUs
Maximum Power Consumption	260W
Typical Power Consumption	160W

Rack Type	19-inch standard EIA rack
Form Factor	1U Rack-Mountable
Chassis Type	1RU high-density top-of-rack (ToR) switch

Interface/Ports

Uplink Ports	2x 100GbE QSFP28
Primary Ports	28x 10GbE SFP+
SFP+ Port Speed	10Gbps (10GBASE-SR/LR/ER/ZR/T)
Total Port Count	30 ports (28 SFP+ + 2 QSFP28)
QSFP28 Port Speed	100Gbps (100GBASE-SR4/LR4), multi-rate 10/25/40/50/100GbE
Management Interface	1x RJ-45 Ethernet management port, 1x USB console port
Connector Type - SFP+	SFP+ (Small Form-factor Pluggable+)
Connector Type - QSFP28	QSFP28 (Quad Small Form-factor Pluggable 28)
Switch Abstraction Interface (SAI)	Supported for open networking
Encapsulated Remote Port Mirroring (ERPM)	Supported

Operating System	Dell EMC Networking OS10 Enterprise

Throughput	720Mpps (million packets per second)
Remote Port Mirroring (RPM)	Supported

Line-Rate Performance	Wire-speed forwarding across all ports simultaneously

Weight	19.66 lbs (8.92 kg)

Thermal Output	886 BTU/h maximum

Frequently asked questions

What is the switching capacity and throughput of the S4128F-ON?

The Dell S4128F-ON delivers 960Gbps full-duplex non-blocking switching capacity with 720Mpps throughput. This architecture ensures line-rate performance across all 30 ports simultaneously, supporting wire-speed forwarding without congestion or packet loss during peak traffic conditions typical in data center environments.

How many 10GbE and 100GbE ports does this switch provide?

The S4128F-ON features 28x10GbE SFP+ ports for server connectivity and 2x100GbE QSFP28 ports for uplinks. The QSFP28 ports support breakout cables, enabling up to 8x10GbE or 4x25GbE per port, maximizing flexibility for diverse network topologies and future expansion.

Does the S4128F-ON support VXLAN and overlay networking?

Yes, the S4128F-ON includes VXLAN gateway functionality enabling line-rate bridging and routing between non-virtualized and virtualized overlay networks. This supports multi-tenant cloud deployments and network segmentation without performance degradation, critical for modern data center architectures.

What power consumption and cooling requirements should I plan for?

Typical operating power is 160W with maximum 260W consumption. The switch includes dual 550W hot-swappable power supplies and four redundant fan modules with front-to-rear airflow. Maximum thermal output is 886 BTU/h, requiring standard data center cooling infrastructure.

Is this switch suitable for converged network deployments?

Yes, the S4128F-ON supports Data Center Bridging (DCB) for converged networks, enabling lossless Ethernet for storage traffic (iSCSI, FCoE, NVMe-over-Fabrics) alongside standard IP workloads. This reduces infrastructure complexity and cost in virtualized environments.

What operating system and management capabilities does it run?

The S4128F-ON runs Dell EMC Networking OS10 Enterprise with Layer 2/3 management. It supports SAI (Switch Abstraction Interface) for open networking, CLI-based management, remote port mirroring (RPM/ERPM), PTP for precision timing, and comprehensive VLAN/VXLAN segmentation.

What is the physical form factor and installation footprint?

The S4128F-ON is a 1U rack-mountable switch weighing 19.66 lbs (8.92 kg), designed for standard 19-inch data center racks. Rack rails are included. The compact 1RU form factor maximizes port density per rack unit while maintaining standard cooling and cabling practices.

Dell PowerSwitch S4128F-ON Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Management & Protocols

Power Consumption

Physical Characteristics

Interface/Ports

Operating System

Drive Performance

Media & Performance

Weight & Dimensions

Environmental Condition

Frequently asked questions