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EX3400-48P
Juniper Networks EX Series EX3400-48P - switch - 48 ports -...
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Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
EX3400-48P is a high-performance Ethernet switch built on a robust and scalable architecture designed for modern enterprise networks. It features flexible power options with support for redundant power supplies, ensuring continuous operation even under demanding conditions while providing 48 PoE ports that deliver reliable power and data connectivity.
EX3400-48P supports advanced stacking capabilities, allowing multiple switches to be interconnected for simplified management and enhanced network resiliency. Its superior performance, Layer 2/Layer 3 switching functionality, and versatile use cases make it the ideal solution for campus LANs, branch offices, and mission-critical applications requiring high availability and efficient power delivery.
EX3400-48P price for new stock is $887.25, a 90.1% saving from the Juniper list price of $8,920.00. EX3400-48P refurb price is $303.56. EX3400-48P is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for EX3400-48P for additional pricing. Browse the full Juniper Ex3400 Series Ethernet Switches series or explore all Juniper products.
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| EX3400-48P |  EX2300-48T |  QFX5100-96S-DC-AFO |  QFX5100-24Q-D-3AFO |  QFX5100-24Q-DC-AFO | |
|---|---|---|---|---|---|
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 64 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount / N/A | Rack-mount |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | EX3400-48P | EX2300-48T | QFX5100-96S-DC-AFO | QFX5100-24Q-D-3AFO | QFX5100-24Q-DC-AFO |
| Media Type Supported | Twisted Pair | Twisted Pair | Fiber | Fiber | Fiber |
| Memory | 512 MB | 256 MB | 4 GB | 512 MB | 4 GB |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | Over 48 Ports | 12–24 Ports | 12–24 Ports |
| POE Support | POE+ | Non POE | Non POE | Non POE | Non POE |
| Power Source | Redundant Power Supply / AC Power Supply | AC Power Supply | DC Power Supply | Redundant Power Supply / AC Power Supply / N/A | DC Power Supply |
| Product Name | Juniper EX3400-48P Ethernet Switch | EX2300-48T Ethernet Switch | Juniper QFX5100-96S-DC-AFO Data Center Ethernet Switch | Juniper Networks QFX5100-24Q-D-3AFO Data Center Switch | Juniper QFX5100-24Q-DC-AFO |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | No | No | Yes | No |
| Switching Capacity | 176 Gbps | 128 Gbps | 1280 Gbps | 1280 Gbps | 1280 Gbps |
| Uplink Configuration | 10G | 1G | 40G | 40G | 40G |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviewed on the 26 September 2024
Solid access switch with plenty of PoE capacity.
Reviewed on the 20 July 2019
Handled campus traffic smoothly.
Reviewed on the 26 December 2022
Reliable hardware.
Reviewed on the 8 August 2024
Good uplink options.
Reviewed on the 27 May 2026
Satisfied overall.
The Juniper EX3400-48P is a managed, rack-mountable Ethernet switch with 48 Gigabit Ethernet PoE+ ports, designed for enterprise campus and branch networks running Junos OS.
The EX3400-48P delivers 1.28 Tbps switching capacity, 924 Mpps forwarding rate, 48 GbE PoE+ ports, and four 10GbE SFP+ uplinks in a 1U chassis.
Yes, the EX3400-48P provides PoE+ (802.3at) on all 48 ports, delivering up to 30W per port for IP phones, access points, and cameras.
The EX3400-48P offers a total PoE+ budget of 740 watts, supporting high-power devices and ensuring reliable power distribution.
You can stack up to 10 EX3400 switches in a single Virtual Chassis, simplifying management and scaling performance up to 12.8 Tbps.
Management options include Junos OS CLI, Web GUI, SNMP, NETCONF/YANG, and integration with Juniper Mist, Junos Space, and third-party tools.
It supports Spanning Tree, VLAN, VXLAN, OSPF, IS-IS, BGP, RIP, VRRP, and static routing, enabling flexible campus and data center deployments.
The switch supports four built-in 10GbE SFP+ ports and optional 40GbE QSPF+ uplink modules for higher-speed aggregation.
Typical power consumption is 110W (no PoE load) and reaches up to 850W under full PoE+ load, with active-active redundant power supply options.
Yes, the 1U chassis includes rack-mount brackets and rail kits for installation in standard 19-inch racks.
Juniper offers a limited lifetime warranty, with Juniper Care support for advanced replacement, software updates, and 24/7 technical assistance.
The EX3400-48P operates from 0° to 40°C, supports 5%–90% non-condensing humidity, and meets NEBS and ETSI compliance standards.
Layer 2 and basic Layer 3 features are included; Juniper’s Enhanced Layer 3 license unlocks OSPF, BGP, MPLS, and advanced security capabilities.
Yes, the EX3400-48P can form Virtual Chassis with EX3300 and EX3400 models to extend port density and management simplicity.
The switch includes 802.1X NAC, DHCP snooping, dynamic ARP inspection, MACsec encryption, and extensive ACL capabilities to protect the network edge.
Use Junos OS CLI or Web GUI to create VLANs, assign ports, and define VLAN tagging; configuration takes effect immediately without reboot.
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