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Rectangular silver rack-mount network switch with 48 front ports and uplink slots

HPE Juniper Networking

HPE Juniper Networking EX3400-48T-DCProduct 48-port Layer 3 network switch

SKU CH-KGMX-RE99K MPN EX3400-48T-DCProduct

48-port Layer 3 switch with 40 GbE uplinks, Virtual Chassis stacking of up to 10 units, and Juniper Mist cloud management

  • ProtocolsHCRP, SPP
  • 48 Gigabit Ethernet ports for dense access connectivity
  • 4 × 10 GbE and 2 × 40 GbE uplinks for high-speed aggregation
  • Virtual Chassis links up to 10 switches into a single managed device
  • Layer 3 routing enables converged data, voice and video traffic
  • Mist Cloud onboarding provides AI-driven automation and wired assurance

48-port Layer 3 switch for enterprise access

The Juniper EX3400-48T-DCProduct is a Layer 3 switch built for converged data, voice and video enterprise access environments. It provides 48 Gigabit Ethernet network ports plus uplink connectivity. The switch supports Virtual Chassis technology so up to 10 units can be managed as a single logical device. It is designed for organisations that need scalable, pay-as-you-grow network infrastructure.

Uplink and Virtual Chassis limits

The unit includes 4 x 10 Gigabit Ethernet and 2 x 40 Gigabit Ethernet uplink ports for high-speed aggregation. Virtual Chassis interconnection uses these uplink ports, limiting the fabric to the available uplink bandwidth. The switch is onboarded and managed through the Juniper Mist Cloud Architecture with AI-driven wired assurance. Modular expansion slots are present for future uplink or feature modules.

Power and management prerequisites

This model carries a DC power designation, so the installation site must provide a compatible DC power source. Verify that your rack or cabinet can accommodate the switch depth and airflow direction before ordering. Confirm that your network management workflow can integrate with the Juniper Mist Cloud for provisioning and ongoing operations. Ensure uplink module choices match the required 10 GbE or 40 GbE connectivity.

Highlights

  • 48 Gigabit Ethernet ports for dense access connectivity
  • 4 × 10 GbE and 2 × 40 GbE uplinks for high-speed aggregation
  • Virtual Chassis links up to 10 switches into a single managed device
  • Layer 3 routing enables converged data, voice and video traffic
  • Mist Cloud onboarding provides AI-driven automation and wired assurance

Specifications

BrandJuniper
ProtocolsHCRP, SPP

Questions about this item

Should I pick the 48-port model or a smaller switch?

The EX3400-48T-DC provides 48 Gigabit Ethernet network ports plus four 10 Gigabit and two 40 Gigabit uplink ports, giving maximum density in a single unit.

What does the 48-port count mean for my rack deployment?

It delivers 48 copper Gigabit connections for endpoints and six high-speed uplinks, so one 1 U chassis can serve an entire wiring closet without stacking.

How do the 10 Gigabit and 40 Gigabit uplink interfaces limit real-world throughput?

Uplinks run at 10 GbE or 40 GbE line rate, so aggregated traffic from the 48 access ports is constrained only by those uplink capacities.

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