JUNIPER NETWORKS 

JUNIPER NETWORKS EX3400-48P-U EX3400 48-PORT 10/100/1000BASET POE+ 4 X 1/10G SFP/SFP+ 2 X 40G QSF

Mfg Part Number:  EX3400-48P-U  
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Price: $9,099.06
Quantity:
In Stock/Mfg Direct Ship
Last Updated: Mar 28, 2026
No Sales Tax except these states
, PO and Wire.

Juniper Networks EX3400 Ethernet Switch delivers a highperformance, flexible, and costeffective solution for today's most demanding converged data, voice, and video enterprise access environments. The EX3400 supports Juniper Networks Virtual Chassis technology, allowing up to 10 switches to be interconnected over uplink ports and managed as a single device, delivering a scalable, pay-as-you-grow solution for expanding network environments. The EX3400 is onboarded, provisioned, and managed in the Juniper Mist Cloud Architecture. Mist Wired Assurance delivers better experiences for connected devices through AI-powered automation and service levels.

The Juniper Networks® EX3400 Ethernet Switch with Juniper Networks Virtual Chassis technology provides enterprises with the flexibility and ease of management that previously was only available with higher-end access switches. The fixed-configuration EX3400 supports a number of key features, including:

  • 24-port and 48-port models with and without Power over Ethernet (PoE/PoE+) are for campus wiring closet deployments.
  • Cloud-ready and zero-touch provisioning (ZTP)-enabled for Juniper Mist Wired Assurance
  • Data center-optimized cooling options offer both front-to-back and back-to-front airflows, making the EX3400 suitable for GbE data center access deployments
  • Two redundant, field-replaceable power supplies each provide up to 920 watts of power.
  • 24-port data center models are included for metro deployments.
  • Four dual-mode (GbE/10GbE) small form-factor pluggable transceiver (SFP/SFP+) uplink ports and two 40GbE QSFP+ ports are available.
  • Uplink ports can be configured as Virtual Chassis interfaces and connected via standard 10GbE/40GbE optic interfaces (40GbE uplink ports are preconfigured by default as Virtual Chassis ports)
  • Comprehensive Layer 2 functionality with RIP and static routing is provided.
  • A compact, 13.8-inch deep 1 U form factor supports flexible deployment options.
  • An easy-to-manage solution includes centralized software upgrades.
  • Support is available for the same consistent modular Juniper Networks Junos operating system control plane feature implementation used by all other Juniper fixedconfiguration Juniper Networks EX Series Ethernet Switches.
  • Support is provided for Layer 3 (OSPF v2, IGMP v1/v2/v3, PIM, VRRP, BFD, virtual router) via an enhanced feature license (optional license required).
  • Support is available for IPv6 management, including neighbor discovery, stateless auto configuration, telnet, SSH, DNS, system log, NTP, ping, traceroute, ACL, CoS static routing, and RIPng.
  • IPv6 routing features (OSPFv3, virtual router support for unicast, VRRPv6, PIM, MLDv1/v2) are supported via an enhanced feature license.
  • Support is available for Border Gateway Protocol (BGP), multiprotocol BGP (MBGP), and Intermediate System-to-Intermediate System (IS-IS) via an optional Advanced Feature license.
  • Energy Efficient Ethernet (EEE) capability is provided.

Architecture and Key Components Cloud Management with Juniper Mist Wired Assurance

Juniper Mist Wired Assurance, a cloud-based service driven by Mist AI to claim, configure, manage, and troubleshoot the EX3400, delivers AI-powered automation and service levels to ensure a better experience for connected devices. Wired Assurance leverages rich Junos switch telemetry data to simplify operations, reduce mean time to repair, and improve visibility. Wired Assurance offers the following features:

Main Specification
General Information
Manufacturer Juniper Networks, Inc
Manufacturer Part Number EX3400-48P-U
Manufacturer Website Address http://www.juniper.net
Brand Name Juniper
Product Series EX3400
Product Model EX3400-48P
Product Name EX3400 EX3400-48P Ethernet Switch
Product Type Ethernet Switch
Interfaces/Ports
Total Number of Network Ports 48
Uplink Port Yes
Modular Yes
Port/Expansion Slot Details 48 x Gigabit Ethernet PoE+
Port/Expansion Slot Details 2 x Gigabit Ethernet Uplink
Port/Expansion Slot Details 4 x Gigabit Ethernet Expansion Slot
Media & Performance
Media Type Supported Twisted Pair
Media Type Supported Optical Fiber
Ethernet Technology Gigabit Ethernet
Network Technology 1000Base-X
Network Technology 10/100/1000Base-T
I/O Expansions
Total Number of Expansion Slots 6
Expansion Slot Type QSFP+
Expansion Slot Type SFP+
Number of SFP+ Slots 4
Network & Communication
Layer Supported 3
Networking Standards IEEE 802.3
Networking Standards IEEE 802.1D
Networking Standards IEEE 802.1ab
Networking Standards IEEE 802.1ad
Networking Standards IEEE 802.1ak
Networking Standards IEEE 802.3z
Networking Standards IEEE802.3af
Networking Standards IEEE 802.3x
Networking Standards IEEE 802.1x
Networking Standards IEEE 802.3u
Networking Standards IEEE 802.1s
Networking Standards IEEE 802.3af
Networking Standards IEEE 802.11ac
Networking Standards IEEE 802.3ad
Networking Standards IEEE 802.1p
Networking Standards IEEE 802.1Q
Networking Standards IEEE 802.1w
Networking Standards IEEE 802.1br
Networking Standards IEEE 802.3ab
Networking Standards IEEE 802.3at
Management & Protocols
Manageable Yes
Power Description
PoE (RJ-45) Port Yes
PoE Budget 1440 W
Power Source AC
Power Source PoE+
Power Source Power Supply
Power Consumption 120 W
Physical Characteristics
Compatible Rack Unit 1U
Form Factor Rack-mountable
Form Factor Wall Mountable
Height 1.7"
Width 17.4"
Depth 13.8"
Weight (Approximate) 10.49 lb
Miscellaneous
Application/Usage Data Center
Application/Usage Camera System
Application/Usage Business
Application/Usage Wireless Access Point
Application/Usage Network
Application/Usage Campus
Application/Usage Enterprise
Environmentally Friendly Yes
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Warranty
Limited Warranty Lifetime

Connector Cables

$150.05

Modules

PC Fans/Heat Sinks

Power Cords

WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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