United States
Name:
S4128F
- Description:
- Dell Networking S4128F-ON, 1U, PHY-less, 28 x 10GbE SFP+, 2 xQSFP28, IO to PSU, 2 PSU, OS10, 3 years* 4h service
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3 Year Extended Warranty
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If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
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Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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S4128F Overview
S4128F is a high-performance rack-mount switch engineered with a scalable architecture that delivers robust switching performance and efficient network management. Designed with advanced stacking capabilities, the device offers flexible power options including redundant AC power supplies and a broad array of Ethernet and SFP ports to ensure reliable connectivity and high throughput in data-intensive environments.
S4128F meets the demands of modern enterprise and data center applications by providing superior port density, low latency, and reliable performance under varied workloads. Its modular design, versatile uplink configurations, and efficient power consumption make it ideal for scalable network deployments, cloud computing, and real-time applications.
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S4128F Specifications
| Product Type | Switch |
| Power Source | Redundant Power Supply |
| Layer Supported | Layer 2 |
| Form Factor | Rack-mount |
| Power Consumption | 150 W |
| Number Of Ethernet Ports | 24–48 Ports |
| Number Of Downlink Ports | 48 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Twisted Pair / Fiber |
| Redundant Power Supply Supported | Yes |
| Manufacturer Part Number | S4128F |
| Uplink Configuration | 10G |
| IOS | LAN Base |
| POE Support | POE+ |
| SFP Ports | 4 SFP Ports |
| Memory | 256 MB |
| Rack Units | 1 RU |
| Interface Ports | 10/100/1000 |
| Port/Expansion Slot Details | 24 x 10/100/1000 Ethernet ports, 4 x 10G SFP+ uplink ports |
| Flash Memory | 64 MB |
| Switching Capacity | 320 Gbps |
| Switching Capacity With Stacking | 640 Gbps |
| Product Name | S4128F High-Performance Rack-Mount Switch |
| Height | 1.75 inches |
| Width | 17.5 inches |
| Depth | 18 inches |
| Weight | 15 lbs |
S4128F Use Case
High-Performance Data Center Spine for Cloud and Virtualized Workloads
Scenario: A global cloud provider deploys the Dell Networking S4128F-ON as spine switches in a leaf-spine fabric, interconnecting 28 leaf nodes via 10GbE SFP+ and providing two 100GbE QSFP28 uplinks to the core network. OS10’s EVPN-VXLAN and MLAG features deliver automated overlay provisioning and sub-700 ns latency. Benefit/Outcome: Achieves 1.12 Tbps non-blocking throughput, reduces east-west traffic delay by 40%, and maintains >99.99% uptime with dual PSUs and 3-year 4-hour service support.
Multi-Tenant Campus Network Aggregation for Higher Education
Scenario: A large university uses the S4128F-ON at its network aggregation layer to connect departmental 1GbE switches and research lab servers over 10GbE SFP+ links, with two 100GbE uplinks to the campus data center. OS10’s robust QoS, ACL-based microsegmentation, and Zero-Touch Provisioning streamline traffic prioritization for voice, video conferencing, and data analysis. Benefit/Outcome: Delivers guaranteed bandwidth for critical educational applications, simplifies network management by 30%, and ensures 4-hour hardware replacement under SLA to support 24/7 campus operations.
Edge Computing and 5G Network Function Virtualization for Telco Operators
Scenario: A telecommunications operator deploys the S4128F-ON at regional edge PoPs to aggregate COTS servers running vCPE and vEPC workloads. The 28×10GbE SFP+ ports connect to server racks, while the two 100GbE QSFP28 uplinks interface with the 5G core. OS10’s segment routing, EVPN, and automation APIs enable rapid service orchestration and network slicing. Benefit/Outcome: Accelerates new service rollout by 50%, reduces rack space by 40%, and delivers carrier-grade reliability with dual PSUs and 4-hour, 3-year support.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Depth | 18 inches | 28 inches | N/A | 18 inches | 18 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 64 MB | 64 MB | 64 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | N/A | 1.75 inches | 1 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | LAN Base | LAN Base | IP Services | IP Services | IP Services |
| Layer Supported | Layer 2 | Layer 2 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | S4128F | S4148F | S4112F-ON | S4128T-ON | S4148T-ON |
| Media Type Supported | Twisted Pair / Fiber | Twisted Pair / Fiber / Combo | Twisted Pair / Fiber / Combo | Twisted Pair | Combo |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 48 Ports | 48 Ports | 12–24 Ports | 48 Ports | 48 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | POE+ | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 24 x 10/100/1000 Ethernet ports, 4 x 10G SFP+ uplink ports | 48 Ethernet ports with 4 dedicated SFP uplink ports | N/A | N/A | 48 Ethernet ports with 4 SFP uplink slots |
| Power Consumption | 150 W | 200 W | N/A | N/A | 150 W |
| Power Source | Redundant Power Supply | Redundant Power Supply / AC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | S4128F High-Performance Rack-Mount Switch | S4148F High-Performance Data Center Switch | S4112F-ON High Performance Modular Switch | Edgecore Networks S4128T-ON 48-Port 10G Rack-Mount Switch | S4148T-ON |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | Yes | Yes | No | Yes |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 320 Gbps | 320 Gbps | N/A | 176 Gbps | 256 Gbps |
| Switching Capacity with Stacking | 640 Gbps | 640 Gbps | N/A | 352 Gbps | 512 Gbps |
| Uplink Configuration | 10G | 10G | 1G / 10G / 40G | 10G | 10G |
| Weight | 15 lbs | 20 lbs | N/A | 15 lbs | 15 lbs |
| Width | 17.5 inches | 17 inches | N/A | 17.5 inches | 17 inches |
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Questions & Answers
Q
What is the Dell Networking S4128F-ON switch?
A
The S4128F-ON is a 1U, PHY-less data center switch offering 28 10GbE SFP+ and 2 QSFP28 ports, dual hot-swap PSUs, OS10 Enterprise Edition and a 3-year 4-hour service contract.
Q
How many and what type of ports does the S4128F-ON provide?
A
It provides twenty-eight 10GbE SFP+ ports for uplink or server connections plus two QSFP28 ports supporting 40GbE or breakout to 4×10GbE.
Q
What does PHY-less architecture mean?
A
PHY-less means the switch ASIC handles both MAC and PHY functions, reducing component count for lower latency, power use and improved reliability.
Q
Which operating system runs on the S4128F-ON?
A
The switch runs Dell’s OS10 Enterprise Edition, a Linux-based NOS offering modularity, open APIs, advanced automation and comprehensive layer-2/3 features.
Q
Is power redundancy supported on the S4128F-ON?
A
Yes, it includes two hot-swappable, load-sharing power supplies for N+1 redundancy and uninterrupted operation during maintenance or failure.
Q
What latency and throughput can I expect?
A
The S4128F-ON delivers sub-400 nanosecond latency and up to 1.12Tbps of switching capacity, ensuring wire-speed performance for demanding workloads.
Q
Can I mount the S4128F-ON in a standard rack?
A
Yes, the switch is 1U high and ships with mounting rails and brackets for 19-inch data center racks.
Q
What management interfaces are supported?
A
You can manage OS10 via CLI, SNMP, RESTful APIs, Dell EMC OpenManage Network Manager or third-party tools for full lifecycle automation.
Q
Does the S4128F-ON support MLAG or stacking?
A
Yes, it supports MLAG for active-active link aggregation and can be integrated into spine-leaf fabrics but does not form a traditional single-unit stack.
Q
Is this switch suitable for leaf or spine layers?
A
With 28×10GbE and 2×40/4×10GbE breakout ports, it excels as a leaf switch in Top-of-Rack deployments or as a low-density spine.
Q
What redundancy features does OS10 provide?
A
OS10 supports VRRP, MLAG, bidirectional forwarding detection (BFD) and nonstop forwarding for resilient routing and minimal downtime.
Q
What environmental conditions does the S4128F-ON require?
A
Operating temperature ranges from 0 °C to 40 °C, with relative humidity between 10% and 90% non-condensing in a standard data center.
Q
What is the power consumption of the S4128F-ON?
A
Typical power draw is 240 W under load; maximum is 320 W with both PSUs installed, enabling efficient cooling and power budgeting.
Q
Which transceivers and cables are compatible?
A
Use SFP+ DAC/AOC or 10GbE optical SFP+ modules for 10GbE ports; use QSFP28 DAC/AOC or 40GbE QSFP28 optical modules for QSFP28 ports.
Q
What warranty and support come with the switch?
A
You get a 3-year ProSupport contract with 4-hour onsite response, firmware updates and 24×7 technical assistance from Dell EMC.
Q
How do I upgrade the switch’s firmware?
A
You can upgrade firmware through the OS10 CLI, Dell EMC OpenManage Network Manager or via RESTful API scripts for automated distribution.
