What port configuration does the Dell KM0NH S4112T-ON provide?

It offers 12x 10GbE BASE-T RJ45 ports for direct server/storage connections up to 100m on Cat6a, plus 3x QSFP28 uplinks supporting 40GbE/100GbE for aggregation. QSFP28 ports allow breakout to 4x10/25GbE, enabling flexible 10/25/40/100GbE densities in ToR deployments.

What operating system runs on the S4112T-ON?

Dell Networking OS10, an open networking OS supporting ONIE for zero-touch installation of third-party NOS like Cumulus or SONiC. It includes L2 multipath via VLT, L3 routing with OSPF/BGP, EVPN for VXLAN, and QoS with DCB for converged traffic.

Is the S4112T-ON suitable for data center spine-leaf?

Yes, as a leaf switch in spine-leaf fabrics, its 12x10GbE ports connect servers while 3x100GbE QSFP28 uplinks scale to spine. VLT provides MLAG-like redundancy without stacking, supporting high-throughput east-west traffic in Clos topologies.

What power and cooling features does it have?

Dual fixed AC PSUs (100-240V) provide redundancy; standard front-to-back airflow. Typical power around 200-300W depending on load, with max under 500W. Hot-swappable fans ensure reliability in 24/7 data center environments.

Does it support advanced features like EVPN?

Yes, OS10 supports BGP EVPN with IRB in asymmetric/symmetric modes for controllerless NV overlay. Combined with VLT for underlay L2 multipath, it enables scalable leaf-spine fabrics without proprietary protocols.

What is the form factor and airflow direction?

1RU rack-mountable chassis with standard IO-to-PSU airflow. Dimensions suit 19-inch racks; dual PSUs and fans are fixed but redundant, optimizing for dense ToR installations with consistent cooling.

KM0NH - Dell S4112T-ON Switch

Name: KM0NH - Dell S4112T-ON Switch
Brand: Dell
SKU: KM0NH

KM0NH - Dell S4112T-ON Switch | US IT Hardware

Product overview

The Dell S4112T-ON (KM0NH) is a high-performance, open networking 1RU top-of-rack switch designed for modern data centers. It features 12x 10GbE BASE-T RJ45 ports for flexible copper connectivity to servers and storage, paired with 3x QSFP28 uplinks supporting 40/100GbE for spine/aggregation links. Powered by Dell OS10, it supports advanced L2/L3 features including VLT for multi-chassis link aggregation, QoS, OSPF/BGP routing, and EVPN for overlay fabrics. Dual fixed AC PSUs ensure redundancy, while standard airflow optimizes cooling in rack environments. Ideal for high-density east-west traffic in cloud, virtualization, and HPC workloads, it provides non-blocking performance with low latency. Part of the S4100-ON series, it enables zero-touch provisioning via ONIE for custom NOS deployment.

12x 10GbE BASE-T ports for copper server connectivity.
3x QSFP28 uplinks support 40/100GbE speeds.
Dual fixed AC PSUs with standard airflow design.
Dell OS10 enables ONIE zero-touch provisioning.
Layer 2/3 features include VLT and BGP routing.
Compact 1RU form factor for high-density racks.

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

Manufacturer part #	KM0NH
Brand	Dell
Condition	New
Model	S4112T-ON
Routing	OSPF, BGP support
Management	ONIE ZTP compatible
Redundancy	VLT, Dual PSU
Product Line	S4100-ON Series
Product Type	Networking Switch
Layer Support	L2/L3 Ethernet
Operating System	Dell OS10

Compatible systems

Optimized for Dell PowerEdge servers; OS10 compatible with open networking ecosystems via ONIE.

Dell PowerEdge
Model: R-series
Form factor: 1U/2U Rack
Generation: 14G/15G
Direct 10GbE BASE-T to server NICs

Best for

Data Center Top-of-Rack
Connects high-density servers with 10GbE copper to 100GbE spine uplinks for low-latency east-west traffic.
Cloud Networking
Supports EVPN/VXLAN overlays with OS10 for scalable multi-tenant fabrics without controller dependency.
HPC Clustering
Provides non-blocking 10/100GbE switching for compute-intensive workloads requiring wire-speed forwarding.
Enterprise Aggregation
Aggregates 10GbE access switches to core with VLT redundancy and L3 routing capabilities.
Virtualized Environments
Optimizes VM traffic with QoS, DCB, and iSCSI support for storage-intensive virtualization.
Edge Computing
Deploys in distributed racks with flexible BASE-T ports and high-speed QSFP28 uplinks.

Details

Shipping, warranty & returns

Customer reviews

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

MAC Addresses	High capacity L2 table
Switching Capacity	High-density non-blocking

Port Speed	10/25/40/100GbE multi-rate
Total Ports	15 (12+3)
Uplink Ports	3 x QSFP28 (40/100GbE)
Downlink Ports	12 x 10GbE BASE-T RJ45
Expansion Slots	3 x QSFP28

Dell S4112T-ON 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