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OS9 is stable and switching performance is excellent.
S3048-ON
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Dell Networking S3048-ON, 48x 1GbE, 4x SFP + 10GbE ports, st...
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S3048-ON
- Description:
- Dell Networking S3048-ON, 48x 1GbE, 4x SFP + 10GbE ports, stacking, airflow from IO to PSU, 1x AC PSU, DNOS 9
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- Brand:
- Dell
- GTIN:
- 5397063839186
- Condition:
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S3048-ON Overview
S3048-ON is a high-performance, stackable Layer 2/Layer 3 rack-mount switch designed for scalable enterprise networks. It features an optimized architecture that supports both copper and fiber connectivity while delivering robust performance suitable for demanding data center and campus environments.
The switch offers multiple power options and flexible port configurations, including fixed 48 Ethernet ports and 4 detachable SFP uplink ports supporting 10G connectivity. Its stacking capabilities ensure enhanced scalability and simplified management for real-world use cases that demand high throughput and reliable network performance.
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S3048-ON Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- N/A
- 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
- Redundant Power Supply Supported
- No
- Manufacturer Part Number
- S3048-ON
- Uplink Configuration
- 10G
- IOS
- IP Lite
- POE Support
- Non POE
- SFP Ports
- 4 SFP Ports
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Port/Expansion Slot Details
- N/A
- Flash Memory
- 64 MB
- Switching Capacity
- 176 Gbps
- Switching Capacity with Stacking
- 352 Gbps
- Product Name
- Dell Networking S3048-ON Series Layer 3 Switch
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 14 inches
- Weight
- 13 lbs
S3048-ON Use Case
Data Center Leaf Switch in Hybrid Cloud Environments
In a hybrid cloud deployment, the Dell Networking S3048-ON (48x1GbE, 4x SFP+ 10GbE) functions as a leaf switch, stacked across multiple racks with DNOS 9 automation and IO-to-PSU airflow for optimal cooling. Outcome: Delivers scalable 1Gb/10Gb connectivity, reduces east-west latency by up to 20%, and automates policy enforcement to accelerate VM mobility and simplify operations.
Enterprise Campus Access Aggregation
In a multi-floor corporate campus, the S3048-ON provides 48 high-density 1GbE access ports per floor, 4x 10GbE uplinks to the distribution layer, and stackable management under DNOS 9. The IO-to-PSU airflow design lowers energy consumption in shared closets. Outcome: Centralizes port provisioning, boosts network uptime to 99.99%, and cuts maintenance overhead by 30% through unified firmware and policy updates.
High-Performance Compute Cluster Leaf Switch
In an HPC cluster, the S3048-ON delivers 4x SFP+ 10GbE uplinks for low-latency interconnects between compute nodes, with stacking for N+1 redundancy and DNOS 9-driven QoS and traffic shaping. IO-to-PSU airflow ensures reliable cooling in dense rack layouts. Outcome: Maintains sub-10 µs network jitter, increases parallel-job throughput by 15%, and ensures predictable performance for compute-intensive workloads.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| S3048-ON |  S4128F |  S4048T-ON |  X1052P |  X1052 | |
|---|---|---|---|---|---|
| Depth | 14 inches | 18 inches | 17 inches | 12 inches | 12 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 64 MB | 256 MB | 64 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches | 1 inch |
| IOS | IP Lite | LAN Base | IP Services | LAN Base | IP Services |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 | Layer 2 / Layer 3 | Layer 2 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | S3048-ON | S4128F | S4048T-ON | X1052P | X1052 |
| Media Type Supported | Twisted Pair | Twisted Pair / Fiber | Twisted Pair | Combo | Twisted Pair / Fiber / Combo |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 48 Ports | 48 Ports | 48 Ports | 24 Ports | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | Non POE | POE+ | Non POE | POE+ | POE+ |
| Port/Expansion Slot Details | N/A | 24 x 10/100/1000 Ethernet ports, 4 x 10G SFP+ uplink ports | 48×10/100/1000 RJ45 ports, 4×10G SFP+ uplink ports | N/A | 2 expansion slots for additional modules |
| Power Consumption | N/A | 150 W | N/A | 150W | N/A |
| Power Source | AC Power Supply | Redundant Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply | Redundant Power Supply / AC Power Supply / N/A |
| Product Name | Dell Networking S3048-ON Series Layer 3 Switch | S4128F High-Performance Rack-Mount Switch | Dell Networking S4048T-ON | X1052P Series High-Performance Switch | X1052 Next-Generation Stackable Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | Yes | No | Yes | Yes |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 176 Gbps | 320 Gbps | 176 Gbps | 128 Gbps | 128 Gbps |
| Switching Capacity with Stacking | 352 Gbps | 640 Gbps | 352 Gbps | 256 Gbps | N/A |
| Uplink Configuration | 10G | 10G | 10G | 1G / 10G | 10G |
| Weight | 13 lbs | 15 lbs | 23 lbs | 15 lbs | 15 lbs |
| Width | 17.5 inches | 17.5 inches | 19 inches | 17.5 inches | 17 inches |
Reviews & Ratings
T
Talha Qasim
5
Good access switch with reliable uplinks.
J
Jukka Rantanen
5
Stacking works smoothly.
R
Ryan Cooper
4
Consistent uptime in production.
S
Shahbaz Khan
4
Solid value for enterprise LANs.
Questions & Answers
What is the Dell Networking S3048-ON switch?
The Dell Networking S3048-ON is a 48-port 1GbE switching solution with 4 SFP+10GbE uplinks, advanced stacking, front-to-back airflow, a single AC PSU, and runs DNOS 9 for enterprise-class performance and reliability.
Which use cases is the S3048-ON best suited for?
The S3048-ON is ideal for top-of-rack deployments in data centers, high-performance campus networks, and virtualization environments requiring high port density, flexible uplinks, and robust stacking.
How many ports and uplinks does the S3048-ON offer?
The S3048-ON provides 48 fixed 1GbE RJ45 ports and 4 SFP+10GbE uplink slots, supporting fiber or copper SFP+ optics for scalable uplink bandwidth.
What stacking capabilities does the S3048-ON support?
It supports up to 12 units in a single stack with 80 Gbps of stacking bandwidth per module, enabling simplified management and high availability across all members.
What airflow direction does the S3048-ON use?
The switch employs front-to-back airflow from the IO panel toward the PSU, optimizing thermal management in data center rack environments.
What power supply does the S3048-ON include?
Each S3048-ON ships with a single hot-swappable AC power supply (250W), supporting optional redundant PSUs for increased uptime.
Which operating system runs on the S3048-ON?
The switch runs DNOS 9, Dell’s Linux-based network OS, offering industry-standard CLI, RESTful APIs, and comprehensive Layer 2/3 features.
How do I upgrade the firmware on the S3048-ON?
Use the built-in lifecycle controller or Dell’s Network Manager to upload the new DNOS 9 image, schedule a maintenance window, and follow the CLI prompts for automated validation and installation.
What management options are available for the S3048-ON?
Manage the switch via CLI, SNMP, RANCID, OpenManage Network Manager, or RESTful API for configuration, monitoring, and automation tasks.
Is the S3048-ON compatible with PoE devices?
No, the S3048-ON does not support Power over Ethernet; it is designed for data-only deployments.
What is the power consumption of the S3048-ON?
Typical power draw is 75W, with a maximum of 125W under full load, ensuring efficient operation in high-density environments.
What are the physical dimensions and weight of the S3048-ON?
The switch measures 1.72" H x 17.3" W x 17.3" D and weighs approximately 12.3 lbs (5.6 kg), fitting standard 1U rack spaces.
What warranty and support options are available?
Dell offers a 1-year hardware warranty, with optional ProSupport and ProSupport Plus services providing 24×7 expert assistance and rapid replacement.
Can I mix S3048-ON switches with other Dell switch models in a stack?
No, stacking is supported only among identical S3048-ON units to ensure firmware, feature parity, and optimal performance.
Which optics are supported in the SFP+ uplinks?
The SFP+ slots support 1/10GbE SR/LR optics, 1GbE SFPs, and DAC cables, enabling flexible uplink distances from 1m to 10km.
How do I configure VLANs on the S3048-ON?
Use the DNOS 9 CLI or GUI: navigate to interface configuration mode, define VLAN membership with the 'switchport access vlan' or 'switchport trunk allowed vlan' commands, then verify with 'show vlan brief'.