United States$5,000,000+
Inventory Delivered By
C
Colton Ramirez
5
Handles dense 10G environments easily. Uplinks provide excellent bandwidth.
S4148T-ON
Original Stock
Ready to Ship
Dell Networking S4148T-ON, 1U, 48x10Gbase-T, 4xQ28, 2xQSFP +...
FEATURED DEAL
Name:
S4148T-ON
- Description:
- Dell Networking S4148T-ON, 1U, 48x10Gbase-T, 4xQ28, 2xQSFP +, PSU to IO, 2 PSU, OS10
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Dell
- GTIN:
- 7436554968986
- Condition:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
S4148T-ON Overview
S4148T-ON is a high-performance switch built with a modular architecture that maximizes throughput and minimizes latency for critical network environments. It offers flexible power options with both redundant power supply and standard AC input, a comprehensive mix of Ethernet and SFP uplink ports, and native stacking support to enhance network scalability and resilience.
Overview of S4148T-ON: Designed for demanding deployments, this rack-mount switch delivers optimized performance through advanced switching technology and integrated stacking capabilities. Its robust design and varied port configurations make it ideal for use in enterprise campuses, data centers, and other high-density network scenarios where reliability and scalability are paramount.
S4148T-ON price is is available on request. Get immediate quote.
Request bulk order quote for S4148T-ON for additional pricing. Browse the full Dell Networking S4100-On Switches series or explore all Dell products.
S4148T-ON Specifications
- Product Type
- Switch
- Power Source
- Redundant Power Supply / AC 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
- Combo
- Redundant Power Supply Supported
- Yes
- Manufacturer Part Number
- S4148T-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 Ethernet ports with 4 SFP uplink slots
- Flash Memory
- 64 MB
- Switching Capacity
- 256 Gbps
- Switching Capacity with Stacking
- 512 Gbps
- Product Name
- S4148T-ON
- Height
- 1 inches
- Width
- 17 inches
- Depth
- 18 inches
- Weight
- 15 lbs
S4148T-ON Use Case
Data Center Leaf Switch for High-Performance Compute Clusters
In a mid-sized cloud service provider environment experiencing exponential growth in virtualized workloads, IT teams deployed the Dell Networking S4148T-ON (1U, 48x10Gbase-T, 4x25GbE Q28, 2xQSFP+, dual PSU) running OS10 as leaf switches in a spine-leaf fabric. By leveraging its high-density 10GbE server connectivity and 25GbE uplinks, the S4148T-ON delivers sub-microsecond latency and non-blocking throughput for HPC and AI/ML training clusters. The result is a 40% reduction in north-south latency, seamless network scaling to 1,024 servers, and a 30% reduction in power and rack-space footprint compared to legacy 1GbE/10GbE switches.
Campus Network Aggregation and Secure Branch Connectivity
A multinational enterprise with distributed regional offices needed a resilient, high-capacity aggregation layer to consolidate 10GbE campus distribution switches and secure SD-WAN tunnels. Deploying the S4148T-ON (1U, 48x10Gbase-T) at each PoP enabled 48 simultaneous 10GbE edge links to access switches, plus 4x25GbE Q28 and 2x40GbE QSFP+ uplinks into the corporate core. OS10’s native EVPN-VXLAN overlays and automated policy enforcement provided zero-touch provisioning and micro-segmentation, resulting in a 60% faster branch rollout, 99.999% network availability, and a 25% reduction in operational overhead.
Hybrid Cloud Gateway with Automated Fabric Management
A financial services firm required deterministic connectivity between its on-premises datacenter and multiple hyperscale cloud regions for real-time trading data. By positioning the Dell Networking S4148T-ON (48x10Gbase-T, 4xQ28, 2xQSFP+) as the hybrid cloud gateway, they established high-bandwidth 10GbE links to on-prem servers and 40GbE uplinks to cloud-on-ramp routers. OS10’s integrated network automation and RESTful APIs streamlined BGP-EVPN route exchange and clock-synchronized failover. The deployment achieved sub-5ms end-to-end latency, 1.2Tbps aggregate throughput, and eliminated manual configuration errors, accelerating time-to-market for new trading applications by 50%.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| S4148T-ON |  S4128F |  S4112F-ON |  S4112T-ON |  S4148F | |
|---|---|---|---|---|---|
| Depth | 18 inches | 18 inches | N/A | 14 inches | 28 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 inches | 1.75 inches | N/A | 1.75 inches | 1.75 inches |
| IOS | IP Services | LAN Base | IP Services | LAN Base | LAN Base |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| 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 | S4148T-ON | S4128F | S4112F-ON | S4112T-ON | S4148F |
| Media Type Supported | Combo | Twisted Pair / Fiber | Twisted Pair / Fiber / Combo | Twisted Pair | Twisted Pair / Fiber / Combo |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 48 Ports | 48 Ports | 12–24 Ports | 12 Ports | 48 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | 12–24 Ports | 24–48 Ports |
| POE Support | Non POE | POE+ | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 48 Ethernet ports with 4 SFP uplink slots | 24 x 10/100/1000 Ethernet ports, 4 x 10G SFP+ uplink ports | N/A | N/A | 48 Ethernet ports with 4 dedicated SFP uplink ports |
| Power Consumption | 150 W | 150 W | N/A | N/A | 200 W |
| Power Source | Redundant Power Supply / AC Power Supply | Redundant Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | S4148T-ON | S4128F High-Performance Rack-Mount Switch | S4112F-ON High Performance Modular Switch | S4112T-ON Managed Stackable Switch | S4148F High-Performance Data Center Switch |
| 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 | 256 Gbps | 320 Gbps | N/A | 64 Gbps | 320 Gbps |
| Switching Capacity with Stacking | 512 Gbps | 640 Gbps | N/A | 128 Gbps | 640 Gbps |
| Uplink Configuration | 10G | 10G | 1G / 10G / 40G | 1G | 10G |
| Weight | 15 lbs | 15 lbs | N/A | 15 lbs | 20 lbs |
| Width | 17 inches | 17.5 inches | N/A | 17.5 inches | 17 inches |
Reviews & Ratings
A
Adil Hussain
4
Stable under heavy east west traffic.
S
Stefan Lindgren
5
Good choice for large data halls.
M
Michael Pugh
5
Consistent OS10 performance.
N
Naveed Ilyas
4
Meets enterprise expectations.
Questions & Answers
What is the Dell Networking S4148T-ON switch?
The Dell Networking S4148T-ON is a 1U top-of-rack switch offering 48×10GBase-T, 4×QSFP28 (100GbE), 2×QSFP+ (40GbE), dual hot-swappable PSUs, and Dell OS10 for high-density data center deployments.
How many ports does the S4148T-ON support?
The S4148T-ON provides 48 10GBase-T copper ports, 4 QSFP28 ports for 100GbE uplinks, and 2 QSFP+ ports for 40GbE uplinks, delivering flexible high-speed connectivity.
Does the S4148T-ON support 100GbE and 40GbE uplinks?
Yes. It includes 4 QSFP28 ports for 100GbE uplinks and 2 QSFP+ ports for 40GbE uplinks, enabling high-bandwidth spine-leaf network architectures.
Which operating system runs on the S4148T-ON?
The switch runs Dell OS10, a modular, Linux-based open networking OS that delivers advanced automation, programmability, and comprehensive layer-2/3 features.
Can I use third-party optics with the S4148T-ON?
Yes. Dell OS10 supports multi-vendor SFP+, SFP28, and QSFP28 transceivers, allowing deployment of certified third-party optics for cost flexibility.
Does the S4148T-ON support redundant power supplies?
Yes. It ships with dual hot-swappable power supplies for full redundancy, ensuring uninterrupted operation in mission-critical environments.
What is the power consumption of the S4148T-ON?
Under full load the S4148T-ON typically consumes around 200W, with a maximum draw of 250W, optimizing energy efficiency for dense top-of-rack deployments.
Does the S4148T-ON support PoE/PoE+?
No. The S4148T-ON is designed for high-performance 10GbE switching in data centers and does not support PoE or PoE+.
What management interfaces are available on the S4148T-ON?
Management options include a console port, SSH-CLI, a web GUI, RESTful APIs, and integration with Dell OpenManage Network Manager for centralized operations.
Can I stack multiple S4148T-ON switches?
Dell OS10 supports MLAG (Multi-Chassis Link Aggregation) and LACP-based link aggregation for logical stacking, eliminating the need for dedicated stacking cables.
What QoS features does the S4148T-ON offer?
It features deep hardware-based QoS with eight priority queues per port, traffic shaping, policing, and QoS-aware load balancing to prioritize critical workloads.
What are the latency and throughput specifications?
With sub-microsecond latency, 1.28Tbps switching capacity, and 952Mpps forwarding rate, the S4148T-ON delivers high throughput and low latency for demanding applications.
What warranty and support options are available?
Dell provides a 1-year limited hardware warranty standard, with optional ProSupport or ProSupport Plus for 24/7 technical support, onsite service, and advanced parts exchange.
How does the S4148T-ON compare to the S4148U?
Compared to the S4148U, the S4148T-ON adds 4×QSFP28/2×QSFP+ uplinks, runs Dell OS10 for open networking, and supports multi-vendor optics for greater flexibility.
What use cases are ideal for the S4148T-ON?
Ideal for top-of-rack aggregation in cloud data centers, hyper-converged infrastructures, and high-performance computing clusters requiring dense 10GbE and 100GbE connectivity.
Where can I purchase the Dell Networking S4148T-ON?
The S4148T-ON is available through Dell authorized distributors, channel partners, and the Dell online store. Contact your Dell sales representative for pricing and availability.