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Name:
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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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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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
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|---|---|---|---|---|
| Depth | N/A | 12 inches | 17 inches | 12 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 64 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | N/A | 1.75 inches | 1.75 inches | 1.75 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | LAN Base | LAN Lite | IP Services | IP Lite |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | S4048 3 Years * 4h | S4048 1 Year NBD | S4048T-ON | S4048-ON |
| Media Type Supported | Combo | Twisted Pair / Fiber | Twisted Pair | Twisted Pair / Fiber |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 8 Ports | 8 Ports | 48 Ports | 48 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 | N/A | 48 fixed 10/100/1000 Ethernet ports and 4 dedicated 10G SFP+ uplink ports | 48×10/100/1000 RJ45 ports, 4×10G SFP+ uplink ports | 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 | S4048 3 Years * 4h | S4048 1 Year NBD Switch | Dell Networking S4048T-ON | Dell Networking S4048-ON |
| 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 | 128 Gbps | 256 Gbps | 176 Gbps | 176 Gbps |
| Switching Capacity with Stacking | 256 Gbps | 512 Gbps | 352 Gbps | N/A |
| Uplink Configuration | 10G | 10G | 10G | 10G |
| Weight | N/A | 15 lbs | 23 lbs | 18 lbs |
| Width | N/A | 17.5 inches | 19 inches | 17.5 inches |
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Questions & Answers
Q
What is the Dell Networking S4048T-ON switch?
A
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.
Q
Which operating system does the S4048T-ON use?
A
The S4048T-ON ships with Dell OS9, a modular, Linux-based operating system that supports advanced automation, open networking, and third-party applications.
Q
How much switching capacity does the S4048T-ON provide?
A
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.
Q
What port types and speeds are supported?
A
It supports 48x 10GBASE-T RJ45 ports for copper connectivity and 6x 40GbE QSFP+ ports for high-density uplinks or server pooling.
Q
What is the airflow direction for this switch?
A
The S4048T-ON has front-to-back (IO to PSU) airflow, optimizing cooling in data center rack environments by pushing hot air toward the rear exhaust.
Q
How many power supply units (PSUs) are included?
A
This model ships with two hot-pluggable AC power supplies for full redundancy and continuous operation in case of PSU failure.
Q
Is the S4048T-ON eligible for stacking or MLAG?
A
Yes, Dell OS9 supports Multi-Chassis Link Aggregation (MLAG) for active/active link redundancy, but this platform does not support physical stacking.
Q
What virtualization features are available?
A
The switch supports VMware NSX, VXLAN, virtual link trunking (VLT), and OpenStack integrations for seamless network virtualization and multi-tenant isolation.
Q
Does the S4048T-ON support advanced automation?
A
Yes, it offers full RESTful APIs (Redfish, OpenSwitch), Python scripting, Ansible, Chef, and Puppet modules for comprehensive automation and orchestration.
Q
What management options are provided?
A
You can manage the switch via CLI, web GUI, SNMP, and out-of-band management through a dedicated management port for simplified administration.
Q
What is the typical power consumption?
A
At average load, the S4048T-ON consumes approximately 350W, with maximum consumption under 500W when fully populated and under full load.
Q
What form factor and rack alignment does it use?
A
It is a 1RU rack-mountable switch designed for standard 19-inch racks, delivering high port density in a compact footprint.
Q
Which environments is the S4048T-ON ideal for?
A
This switch is ideal for data centers, enterprise core/distribution layers, high-performance computing clusters, and virtualization environments requiring low latency and high throughput.
Q
Does Dell offer a warranty and support for this switch?
A
Yes, Dell provides a limited lifetime warranty on the hardware and 3-year ProSupport with next-business-day onsite service, upgradeable to ProSupport Plus.
Q
Can I customize the ONIE loader or other software?
A
Yes, the S4048T-ON includes ONIE (Open Network Install Environment) allowing you to install third-party network operating systems alongside Dell OS9.
Q
What compliance and safety certifications does it hold?
A
The S4048T-ON complies with RoHS, CE, UL, FCC, and CSA standards, ensuring safety, environmental, and electromagnetic compatibility in global data centers.
