What is the port configuration and switching capacity of the S4148FE-ON?

The Dell S4148FE-ON features 48 fixed 10GbE SFP+ ports, 2 fixed 40GbE QSFP+ ports, and 4 fixed 100GbE QSFP28 ports. It delivers 1.76Tbps full-duplex non-blocking cut-through switching fabric with 1320Mpps forwarding, ensuring line-rate performance across all ports for data center ToR applications.

Does the S4148FE-ON support multirate speeds and breakout cabling?

Yes, 100GbE QSFP28 ports support 10/25/40/50GbE, 40GbE QSFP+ supports 10GbE, and 10GbE SFP+ supports 1GbE. Max 72x 10GbE density via QSFP28 breakout (48 SFP+ native + 24 breakout), enabling flexible high-density configurations in evolving networks.

What network operating systems are compatible with this switch?

ONIE-enabled for zero-touch installation of Dell SmartFabric OS10 or select third-party NOS. Supports standard L2/L3 features, VXLAN gateway, 200K IPv4 routes, 4K VLANs, 128 LAG groups, and DCB for converged environments.

What power and environmental specs does the S4148FE-ON have?

Max power consumption is 400W with redundant hot-swappable AC PSUs and fans. Supports I/O to PSU or PSU to I/O airflow for hot/cold aisle deployments. Operates at ambient temperatures suitable for data centers with 1,500 BTU/h heat dissipation.

Is the S4148FE-ON suitable for storage networking?

Yes, supports DCB with PFC, DCBX, ETS for lossless iSCSI/FC. High port density and low-latency architecture ideal for converged storage in virtualized data centers requiring reliable east-west traffic handling.

What timing and synchronization features are included?

IEEE 1588v2 Precision Time Protocol (PTP) supported on 48-port models, enabling precise synchronization for financial trading, telecom, or HPC applications needing sub-microsecond accuracy across distributed clusters.

Dell

Dell S4148FE-ON 48x10GbE 1.76Tbps 4x100GbE ToR Switch

Name: Dell S4148FE-ON 48x10GbE 1.76Tbps 4x100GbE ToR Switch
Brand: Dell
SKU: S4148FE-ON

MPN: S4148FE-ON·By: Dell

Part #:S4148FE-ONNewIn stock

Ships from the US.

Price on request

We'll confirm availability and pricing for S4148FE-ON, usually within one business day.

Have questions?

Talk to our customer service team.

Phone Email

Product overview

The Dell PowerSwitch S4148FE-ON is a high-performance, open networking top-of-rack switch designed for demanding data center environments. Featuring 48 fixed 10GbE SFP+ ports, 2 fixed 40GbE QSFP+ ports, and 4 fixed 100GbE QSFP28 ports, it provides 1.76Tbps full-duplex non-blocking switching capacity and 1320Mpps forwarding rate. Supporting multirate speeds (1/10/25/40/50/100GbE), it enables flexible migration paths in high-density deployments. ONIE compatibility allows zero-touch installation of Dell SmartFabric OS10 or third-party network operating systems, enhancing operational flexibility. Key features include redundant hot-swappable PSUs and fans, IEEE 1588v2 PTP timing, VXLAN L2/L3 gateway support, and DCB for converged storage traffic. With line-rate performance, PFC, DCBX, and ETS, it excels in HPC, cloud, and virtualized data centers handling east-west traffic, iSCSI/FC storage, and software-defined networking.

1.76Tbps full-duplex non-blocking switching capacity.
48x 10GbE SFP+ ports with multirate 1/10GbE support.
4x 100GbE QSFP28 uplinks supporting 10/25/40/50GbE.
1320Mpps forwarding rate for high-performance workloads.
ONIE support for SmartFabric OS10 or third-party NOS.
Redundant hot-swappable PSUs and fans for high availability.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Max 10GbE Density
Manufacturer part #	S4148FE-ON
Brand	Dell
Condition	New
Model	S4148FE-ON
VLANs	4K Layer 2
LAG Groups	128 groups, 32 links/group
OS Support	ONIE, SmartFabric OS10, 3rd-party
IPv4 Routes	200K (scaled L3 mode)
PTP Support	IEEE 1588v2
Product Line	PowerSwitch S4100-ON Series
Product Type	Networking Switch

Compatible systems

Optimized for Dell PowerEdge servers; broad transceiver compatibility; ONIE enables multi-vendor NOS integration.

Dell PowerEdge
Model: R-series
Form factor: 1U/2U Rack
Generation: 14G+
Direct 10GbE SFP+ connectivity for ToR server access.

Best for

Data Center Top-of-Rack
High-density 10GbE server access with 100GbE uplinks for non-blocking east-west traffic in scale-out environments.
High Performance Computing
Multirate 1/10/25/40/100GbE ports support bandwidth-intensive HPC workloads with low-latency cut-through switching.
Cloud Networking
VXLAN L2/L3 gateway and ONIE flexibility enable SDN fabrics for multi-tenant cloud providers.
Converged Storage
DCB, PFC, and ETS ensure lossless iSCSI/FC transactions in unified storage deployments.
Enterprise Spine/Leaf
1.76Tbps capacity scales small fabrics with S-Series ToR switches for dynamic data centers.
Virtualized Data Centers
IEEE 1588v2 PTP and high port density optimize NFV and virtualization east-west flows.

Details

Shipping, warranty & returns

Customer reviews

No reviews yet — be the first to review this part.

Free ground shipping over $100

Secure SSL checkout. Visa, Mastercard, Amex and Discover accepted. ACH / wire available for businesses.

Buy with confidence

New, certified-refreshed and OEM stock with guaranteed compatibility, backed by warranty on every part.

Business account benefits

Net payment terms
Dedicated account rep
Warehousing & scheduled releases
Stock testing reports

Set up your business account →

Govt, federal & edu procurement

We process quotes, POs, stock documentation and compliance invoicing.

[email protected]

Manufacturer part #

S4148FE-ON

Brand

Dell

Condition

New

Model

S4148FE-ON

VLANs

4K Layer 2

LAG Groups

128 groups, 32 links/group

OS Support

ONIE, SmartFabric OS10, 3rd-party

IPv4 Routes

200K (scaled L3 mode)

PTP Support

IEEE 1588v2

Product Line

PowerSwitch S4100-ON Series

Product Type

Networking Switch

Max 10GbE Density

Fans	4x hot-swap modules
Airflow	I/O-to-PSU or PSU-to-I/O
Heat Dissipation	1,500 BTU/h max

Ports 10GbE	48x fixed SFP+
Ports 40GbE	2x fixed QSFP+
Console Port	1x micro-USB-B
Ports 100GbE	4x fixed QSFP28

Dell S4148FE-ON 48x10GbE 1.76Tbps 4x100GbE ToR Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Dell S4148FE-ON 48x10GbE 1.76Tbps 4x100GbE ToR Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions

Forwarding Rate	1320Mpps
Switching Capacity	1.76Tbps full-duplex