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10GBASE T ports work perfectly with our servers.
S4048T-ON
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Dell Networking S4048T-ON, 48x 10GBASE-T and 6x 40GbE QSFP +...
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S4048T-ON
- Description:
- Dell Networking S4048T-ON, 48x 10GBASE-T and 6x 40GbE QSFP + ports, airflow from IO to PSU, 2x AC PSU, OS9
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- Dell
- GTIN:
- 11110487902
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3 Year Extended Warranty
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S4048T-ON Overview
S4048T-ON is a high-performance network switch engineered with a modular architecture that supports both Layer 2 and Layer 3 operations. Designed for data centers and enterprise environments, it offers efficient stacking and scalability while delivering optimized performance under a variety of power options, including an AC power supply for reliable operations.
S4048T-ON integrates 48 fixed 10/100/1000 RJ45 downlink ports with 4 high-speed 10G SFP+ uplink ports to meet modern connectivity demands. Its robust port configuration, non-POE design, and advanced stacking capabilities make it an ideal fit for use cases ranging from campus networks to large-scale data center deployments.
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Request bulk order quote for S4048T-ON for additional pricing. Browse the full Dell Networking S4048-On Switches series or explore all Dell products.
S4048T-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
- S4048T-ON
- Uplink Configuration
- 10G
- IOS
- IP Services
- 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
- 48×10/100/1000 RJ45 ports, 4×10G SFP+ uplink ports
- Flash Memory
- 256 MB
- Switching Capacity
- 176 Gbps
- Switching Capacity with Stacking
- 352 Gbps
- Product Name
- Dell Networking S4048T-ON
- Height
- 1.75 inches
- Width
- 19 inches
- Depth
- 17 inches
- Weight
- 23 lbs
S4048T-ON Use Case
Low-Latency Spine-Leaf Fabric for Virtualized Data Centers
In a virtualized data center requiring high east-west VM traffic, the Dell Networking S4048T-ON provides 48×10GBASE-T server uplinks and 6×40GbE QSFP+ spine connections under OS9. Front-to-back airflow and dual AC PSUs ensure reliability in dense rack deployments. Outcome: ultra-low latency (sub-microsecond), linear scale-out to thousands of VMs, and centralized OS9 automation for seamless live migration and micro-segmentation.
Cloud Service Provider Multi-Tenant Architecture with VXLAN EVPN
For cloud service providers hosting hundreds of tenants, the S4048T-ON delivers dedicated 10GBASE-T access ports per rack and 40GbE uplinks to the core fabric. OS9’s open networking supports VXLAN EVPN for secure multi-tenant overlay, while airflow from I/O to PSU optimizes datacenter cooling. Outcome: tenant isolation at scale, 40 Gbps bandwidth burst capacity, and 25% reduction in power and cooling costs.
Hyperconverged Infrastructure Networking for Data-Intensive Workloads
Enterprises deploying hyperconverged clusters (vSAN, Nutanix, VMware) use the S4048T-ON’s 48×10GBASE-T ports for server connectivity and 6×40GbE for spine aggregation. OS9 integration with Ansible or Python APIs automates provisioning and telemetry. Outcome: 40% throughput improvement for database and analytics applications, simplified network operations, and enterprise-grade redundancy with dual AC power.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| S4048T-ON |  S4048 1 Year NBD |  S4048-ON |  S4048 3 Years * 4h | |
|---|---|---|---|---|
| Depth | 17 inches | 12 inches | 12 inches | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 64 MB | 256 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.75 inches | N/A |
| IOS | IP Services | LAN Lite | IP Lite | LAN Base |
| Interface Ports | 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 3 |
| Manageable | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | S4048T-ON | S4048 1 Year NBD | S4048-ON | S4048 3 Years * 4h |
| Media Type Supported | Twisted Pair | Twisted Pair / Fiber | Twisted Pair / Fiber | Combo |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 48 Ports | 8 Ports | 48 Ports | 8 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 48×10/100/1000 RJ45 ports, 4×10G SFP+ uplink ports | 48 fixed 10/100/1000 Ethernet ports and 4 dedicated 10G SFP+ uplink ports | N/A | N/A |
| Power Consumption | N/A | 150 W | N/A | N/A |
| Power Source | AC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Dell Networking S4048T-ON | S4048 1 Year NBD Switch | Dell Networking S4048-ON | S4048 3 Years * 4h |
| Product Type | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | Yes | No | No |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 176 Gbps | 256 Gbps | 176 Gbps | 128 Gbps |
| Switching Capacity with Stacking | 352 Gbps | 512 Gbps | N/A | 256 Gbps |
| Uplink Configuration | 10G | 10G | 10G | 10G |
| Weight | 23 lbs | 15 lbs | 18 lbs | N/A |
| Width | 19 inches | 17.5 inches | 17.5 inches | N/A |
Reviews & Ratings
F
Faisal Karim
4
Strong performance and redundant power supplies.
M
Mads Sorensen
5
Reliable under sustained workloads.
K
Kevin Lawson
5
Good fit for copper based data centers.
R
Rehan Siddiq
5
Consistent Dell quality.
Questions & Answers
What is the Dell Networking S4048T-ON switch?
The Dell Networking S4048T-ON is a top-of-rack, layer 2/3 Ethernet switch featuring 48x 10GBASE-T and 6x 40GbE QSFP+ ports, running Dell OS9 for advanced programmability and high performance.
Which operating system does the S4048T-ON use?
The S4048T-ON ships with Dell OS9, a modular, Linux-based operating system that supports advanced automation, open networking, and third-party applications.
How much switching capacity does the S4048T-ON provide?
The S4048T-ON delivers up to 1.28 Tbps of non-blocking switching capacity with 960 Mpps forwarding performance, ensuring low latency and no packet drops under full load.
What port types and speeds are supported?
It supports 48x 10GBASE-T RJ45 ports for copper connectivity and 6x 40GbE QSFP+ ports for high-density uplinks or server pooling.