Dell S4148F-ON / S4148T-ON, 48 × 10GbE SFP+/10GBASE-T, 6 × 100GbE QSFP28 L3 Open Networking Switch, 4 Hot-Swap Fans, Dual AC Power Supply

Dell EMC Networking S4148F-ON and S4148T-ON switches are high-performance 10/25/100GbE platforms designed for enterprise, data centre, and cloud deployments. The S4148F-ON features 48x SFP+ ports for fibre connections, while the S4148T-ON provides 48x 10GBASE-T copper ports, both offering up to six 100GbE uplinks for high-speed aggregation. With low latency, high throughput, and redundant hot-swappable PSUs and fans, they deliver reliability and consistent performance in demanding network environments.

Built on Dell’s Open Networking (ON) architecture, the S4148 series supports SmartFabric OS10, Cumulus Linux, and SONiC, providing flexibility in software choice. Advanced Layer 2/Layer 3 capabilities, automation support, VXLAN, and comprehensive telemetry features make these switches ideal for modern virtualised and multi-cloud infrastructures that require scalability, programmability, and seamless interoperability.

KEY FEATURES:

• Total Ports: 48 × 10GbE (SFP+ for S4148F-ON, 10GBASE-T for S4148T-ON) + 6 × 100GbE QSFP28 uplinks
• Switching Capacity: Up to 1.76 Tbps (Full Duplex)
• Forwarding Rate: Approx. 1320 Mpps
• CPU: Intel Atom C3000 Series Quad-Core
• System Memory: 8 GB DDR4
• Flash Storage: 16 GB eMMC
• Packet Buffer: 16 MB (Dynamic Buffer Allocation)
• MAC Address Table: 160K entries
• VLANs: Up to 4,094
• Latency: <700 ns for 10GbE
• Form Factor: 1U Fixed Rack Mount
• Airflow: Normal airflow: I/O Panel → PSU (front to back) / Reverse airflow: PSU → I/O Panel (back to front)
• Fans: Hot-swappable, variable-speed, N+1 redundancy
• Power Supply: Dual hot-swappable AC or DC PSUs
• Power Consumption: 200/320 W typical; 370/440  W max
• Dimensions: Approx. 17 × 1.75 × 18 in (43.1 × 4.125 × 20.9 cm)
• Weight: ~9.38 kg (20.67 lbs) / 9.14 kg (20.15 lbs)
• Operating Temp: 0°C to 45°C
• Supported OS: Dell OS10, Cumulus Linux, SONiC
• Management Ports: RJ45 Console, Micro-USB Console, Out-of-Band Management
• Mounting: Standard 1U rack-mount
  

TECHNICAL SPECIFICATION:

HARDWARE:

PERFORMANCE:

SECURITY:

MANAGEMENT:

PHYSICAL & ENVIRONMENTAL:

ADVANCED FEATURES:

Open Networking & OS Flexibility:

The S4148 series supports Dell OS10, Cumulus Linux, and SONiC, giving organizations full control over their network OS and the ability to implement software-defined networking (SDN), network automation, and multi-vendor integration strategies. It enables programmable APIs, CLI automation, DevOps workflows, and template-based provisioning, reducing deployment errors and accelerating configuration. Additionally, the switches allow customised network policies, multi-tenant orchestration, and seamless integration with orchestration platforms, ensuring flexible adaptation to evolving business and cloud requirements. They also support virtualised network overlays, containerized applications, and hybrid cloud integration for future-ready deployments.

High-Density Connectivity & Scalable Topology:

With 48 high-speed ports and 6 × 100GbE uplinks, the S4148F/T-ON maximises port density in 1U rack spaces, making them ideal for leaf-spine, Top-of-Rack (ToR), and aggregation layer deployments. They support Layer 2/3 switching, VXLAN overlays, MLAG, VRF, and dynamic routing protocols such as OSPF, BGP, and IS-IS, allowing segmentation, multi-tenancy, and high-performance east-west traffic. Traffic shaping, QoS, congestion management, and uplink aggregation ensure mission-critical workloads maintain priority without impacting overall throughput. Additionally, the switches provide flexible uplink expansion, link redundancy, and efficient multi-site connectivity for distributed data centres.

Redundancy, Reliability & High Availability:

These switches feature dual hot-swappable AC or DC PSUs and N+1 redundant fans, ensuring uninterrupted operation even during component replacement. They support non-disruptive software upgrades (ISSU), redundant backplane architecture, and system failover mechanisms, allowing maintenance without downtime. VRRP, HSRP, multi-chassis LAG, and predictive monitoring enhance network resilience and service continuity. They also provide automated fault detection, pre-emptive alerts, and rapid component replacement, ensuring minimal operational disruption.

Ultra-Low Latency & High Performance:

The S4148 series is optimised for sub-microsecond latency on 10GbE ports, suitable for real-time applications, AI/ML workloads, financial trading, and high-frequency data analytics. Features like cut-through forwarding, jumbo frame support, deep packet buffers, and hardware acceleration ensure high throughput and consistent performance. The switches also provide hardware-based flow control, priority queuing, optimized multi-traffic handling, and low-latency VXLAN routing, delivering stable performance across large-scale data fabrics.

Advanced Security & Network Protection:

Security features include MACsec, 802.1X authentication, RADIUS/TACACS+, role-based access control (RBAC), and comprehensive ACL support. Additional protections such as DHCP Snooping, Dynamic ARP Inspection (DAI), BPDU Guard, Root Guard, port security, storm control, and DoS mitigation provide robust network threat protection. They also integrate with centralised security management, monitoring tools, and multi-tenant isolation, ensuring regulatory compliance and safeguarding critical workloads. Furthermore, encrypted management protocols, logging, and audit trail features enhance operational security.

Automation, Orchestration & Programmability:

The S4148 switches support Zero-Touch Provisioning (ZTP), Ansible, Puppet, Chef, Python scripting, and REST APIs, enabling automated deployment, updates, and policy enforcement. Event-driven automation and template-based provisioning reduce manual intervention, ensuring consistent configuration and faster deployment. They also allow cross-site replication, automated rollback in case of misconfiguration, and seamless integration with SDN controllers, reducing risk in large-scale environments. Additionally, the switches provide programmable telemetry, custom scripts for traffic management, and automation of compliance checks.

Monitoring, Telemetry & Analytics:

Advanced telemetry options include sFlow, NetFlow, SNMP, Syslog, streaming analytics, and integration with CloudVision. These enable real-time traffic visibility, historical performance trends, predictive analytics, and capacity planning, allowing IT teams to maintain optimal performance and troubleshoot efficiently. They also offer customizable dashboards, AI-assisted anomaly detection, automated alerts, and event correlation, giving complete network insight and proactive management. Furthermore, integration with cloud-based monitoring and cross-vendor environments ensures centralized observability.

Flexible Deployment & Environmental Adaptability:

The switches support Front-to-Back or Back-to-Front airflow, optimizing cooling efficiency in any rack layout. The 1U form factor, hot-swappable fan modules, and modular PSU options make them suitable for edge, campus, or core deployments, while reducing space, power, and cooling costs. They also include high-efficiency power modes, environmental monitoring for temperature/humidity/airflow, and predictive thermal alerts, ensuring reliable operation. Additionally, they support deployment in multi-tenant racks and high-density server clusters for flexible scaling.

Future-Ready Networking & Scalability:

Designed for next-generation workloads, the switches support high-bandwidth cloud applications, hybrid cloud integrations, AI/ML traffic, and edge computing workloads. They accommodate emerging protocols, telemetry standards, and future software enhancements, ensuring longevity and investment protection. They also provide modular software feature expansion, scalable overlays, and advanced hardware readiness to support future networking innovations. Additionally, cross-data-center consistency and integration with evolving SDN fabrics ensure long-term scalability.

Operational Efficiency & Cost Optimization:

Centralized management, predictive analytics, and automated provisioning reduce operational overhead and minimize manual errors, ensuring improved network uptime. Energy-efficient design and intelligent power management lower TCO and reduce operational costs. The switches also enable streamlined maintenance workflows, faster troubleshooting, and simplified software upgrades, allowing IT teams to focus on strategic tasks. Furthermore, consolidation of monitoring tools and integration with existing network systems enhances operational efficiency.

Enhanced Enterprise Features & Deployment Versatility:

Supports multicast routing, VXLAN bridging, hierarchical QoS, MPLS, and dynamic link aggregation, making it ideal for multi-tenant data centres, service providers, and enterprise networks. Advanced monitoring, logging, and automation reduce manual workload and ensure rapid problem resolution. The switches also support hybrid topologies, cross-site orchestration, remote configuration, and high-availability deployment, providing maximum flexibility for enterprise-scale networks.

ORDERING INFORMATION:

WARRANTY & SUPPORT:

Manufacturers are responsible for warranties, which are based on the purchase date and validity. We make sure the products we sell are delivered on time and in their original condition at Grabnpay. Whether it's physical damage or operational issues, our team will help you find a solution. We help you install, configure, and manage your devices. We'll help you file a warranty claim and guide you every step of the way.

All listed prices reflect standard market rates. Final commercial terms, including volume-based discounts, will be provided based on purchase volume, MOQ, and other applicable criteria. For more information about switches & other accessories, contact our technical support team.