Dell Networking S4112T Managed Layer 3 Switch with 12x 10GBase-T and 3x 100GbE QSFP28, 1U Half-Width Rack-Mountable

The Dell Networking S4112T is a managed Layer 3 switch engineered for high-density 10GBase-T access and 100GbE uplinks in a compact half-width 1U form factor. Its standout capability is the 840 Gbps full-duplex switching capacity, enabling non-blocking performance for demanding enterprise and data center edge deployments.

Advantages

This switch delivers exceptional flexibility with 12 ports of 10GBase-T, allowing reuse of existing Cat6a/Cat7 copper cabling for 10 Gigabit speeds, while three 100GbE QSFP28 ports provide massive uplink bandwidth. Dual hot-swappable power supplies and front-to-back airflow ensure high availability and efficient cooling. Running Dell EMC SmartFabric OS10, it offers advanced Layer 3 routing, robust security, and open automation for modern networks.

Suitable for

• Enterprise campus distribution and high-performance access layers
• Data center top-of-rack deployments requiring 10G copper server connectivity
• Environments needing scalable 100G uplinks to spine switches
• Organizations standardizing on Dell EMC networking with centralized management

Key specifications

• 12 x 10GBase-T RJ45 ports and 3 x 100GbE QSFP28 ports
• Switching capacity: 840 Gbps (full duplex); forwarding rate: 600 Mpps
• Layer 3 routing protocols: BGP, OSPFv2/v3, RIPv1/v2, VRRP, PIM-SM/DM, ECMP, static routing
• Jumbo frame support up to 9216 bytes; MAC address table: 160K entries
• VLAN support: up to 4096 VLANs; link aggregation: LACP and MLAG
• Spanning Tree: STP, RSTP, MSTP; management: SNMPv1/v2c/v3, RMON, CLI, SSH, HTTPS
• Dual-core ARM Cortex A9 1.5 GHz processor, 4 GB RAM, 8 GB flash
• Dual hot-swappable AC power supplies; airflow: I/O to PSU (front-to-back)
• Rack-mountable 1U half-width form factor

Recommendations

For IT teams seeking a high-performance, space-efficient switch that bridges 10G copper access with 100G fiber uplinks, the Dell S4112T offers a compelling balance of capacity, redundancy, and advanced routing features. Its half-width design is ideal for dense rack environments where every rack unit counts.