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EX3400-48P, Juniper 48-Port PoE+ Ethernet Switch with 4x SFP/SFP+ and 2x 40GbE QSFP+ Uplinks

Name: EX3400-48P, Juniper 48-Port PoE+ Ethernet Switch with 4x SFP/SFP+ and 2x 40GbE QSFP+ Uplinks
Brand: Juniper
SKU: EX3400-48P
Price: 2668 USD
Availability: InStock
Rating: 4.9 (29 reviews)

Brand: Juniper
Model: EX3400-48P
In Stock
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Rating:

98%

4.9/5.0

29 Reviews

23 Questions

List Price: $11,059.00

76% OFF

$2,668.00

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EX3400-48P, Juniper 48-Port PoE+ Ethernet Switch with 4x SFP/SFP+ and 2x 40GbE QSFP+ Uplinks

100% Genuine Ready to Ship

$11,059.00

76% OFF

$2,668.00

Overview

Juniper EX3400-48P Overview

The Juniper EX3400-48P is a fixed 1RU enterprise access switch with 48 10/100/1000BASE-T PoE+ ports, four dual-mode SFP/SFP+ uplinks, and two 40GbE QSFP+ ports. It supports up to 30W per PoE port, redundant field-replaceable power options, and Virtual Chassis deployments of up to 10 switches for campus and branch networks.

Key Specifications

PoE Access Ports

48 × 10/100/1000BASE-T PoE+, up to 30W per port

SFP/SFP+ Uplinks

4 × dual-mode SFP/SFP+

QSFP+ Uplinks

2 × 40GbE QSFP+

PoE Budget

740W with one 920W PSU
1,440W with two 920W PSUs

Switching and Throughput

168 Gbps unidirectional / 336 Gbps bidirectional
250 Mpps

Form Factor and Stacking

1RU fixed configuration
Virtual Chassis up to 10 switches

Figure 1 shows the front-panel port layout of the Juniper EX3400 48-port switch.

Juniper EX3400-48P front panel with 48 PoE+ RJ-45 ports, four SFP/SFP+ uplinks, Mini-USB console port, status LEDs, and Factory Reset/Mode button

The official EX3400 48-port front-panel diagram applies to the EX3400-48P and shows the 48 RJ-45 network ports, four SFP/SFP+ uplink ports, Mini-USB console port, status LEDs, and Factory Reset/Mode button.

①	RJ-45 10/100/1000BASE-T ports; all ports support PoE+ on EX3400-48P
②	Chassis status LEDs
③	Port status mode LEDs, including the PoE status LED on PoE-capable models
④	Factory Reset/Mode button
⑤	Mini-USB Type-B console port
⑥	Four SFP/SFP+ uplink ports

Figure 2 shows the rear-panel layout of the Juniper EX3400 with an AC power supply.

Juniper EX3400-48P rear panel with management Ethernet port, RJ-45 console port, USB port, QSFP+ uplinks, fan modules, AC power supply, and second power supply slot

The official EX3400 rear-panel diagram shows the AC power configuration with the management Ethernet port, RJ-45 console port, USB port, two QSFP+ uplink ports, fan modules, AC power supply, and second power supply slot.

①	USB Type-A port
②	RJ-45 management Ethernet port
③	RJ-45 console port
④	Protective earthing terminal
⑤	Two QSFP+ uplink ports; configured as Virtual Chassis ports by default
⑥	ESD point
⑦	Two front-to-back airflow fan modules
⑧	CLEI code label
⑨	Serial number ID label
⑩	AC power supply
⑪	Second power supply slot covered by a blank panel

Best Fit Applications

Campus Access Switching

Connect access points, IP phones, surveillance devices, and other powered endpoints with 48 PoE+ access ports and high-speed SFP/SFP+ and QSFP+ uplinks.

Branch and Wiring Closet Deployment

The compact 1RU chassis is designed for enterprise branch offices, campus wiring closets, and access-layer deployments that require PoE connectivity and redundant power options.

Virtual Chassis Networks

Interconnect up to 10 EX3400 switches and manage them as a single logical device to simplify access-layer operations and expansion.

Cloud-Ready Wired Management

Use Junos OS, Zero Touch Provisioning, and Juniper Wired Assurance to streamline switch onboarding, configuration, monitoring, and troubleshooting.

Compare Related Models

	EX3400-48P	EX3400-24P	EX3400-24T	EX3400-48T
Access Ports	48 × 10/100/1000BASE-T	24 × 10/100/1000BASE-T	24 × 10/100/1000BASE-T	48 × 10/100/1000BASE-T
PoE	PoE+ on all 48 ports	PoE+ on all 24 ports	No PoE	No PoE
PoE Power per Port	Up to 30W	Up to 30W	Not applicable	Not applicable
SFP/SFP+ Uplinks	4 × dual-mode SFP/SFP+	4 × dual-mode SFP/SFP+	4 × dual-mode SFP/SFP+	4 × dual-mode SFP/SFP+
QSFP+ Uplinks	2 × 40GbE QSFP+	2 × 40GbE QSFP+	2 × 40GbE QSFP+	2 × 40GbE QSFP+
Packet Switching Capacity	168 Gbps unidirectional / 336 Gbps bidirectional	168 Gbps unidirectional / 336 Gbps bidirectional	168 Gbps unidirectional / 336 Gbps bidirectional	168 Gbps unidirectional / 336 Gbps bidirectional
L2/L3 Throughput	250 Mpps	250 Mpps	250 Mpps	250 Mpps
Form Factor	1RU	1RU	1RU	1RU
Virtual Chassis	Up to 10 switches	Up to 10 switches	Up to 10 switches	Up to 10 switches
Recommended Use	High-density PoE campus and branch access	Smaller PoE access deployments	Non-PoE access deployments with 24 ports	Non-PoE access deployments with 48 ports

System Compatible Components

Category	Part Number	Description
Power Supplies	JPSU-920-AC-AFO	920W AC power supply with front-to-back airflow; power cord sold separately.

Category	Part Number	Description
Fan Modules	EX3400-FAN-AFO	Front-to-back airflow replacement fan module for EX3400 switches.

Category	Part Number	Description
Rack Mounting Kits	EX-RMK	Juniper EX Series rack mount kit for EX3400 and related EX switches.
	EX-4PST-RMK	Four-post adjustable rack mount kit for EX3400 and related EX switches.
	EX-WMK	Wall mount kit for EX3400 and related EX switches.

Category	Part Number	Description
Software Licenses	S-EX-A-C3-P	Advanced features, Class 3, perpetual license.
Software Licenses	S-EX-P-C3-P	Premium features, Class 3, perpetual license.

Category	Part Number	Description
Power Cables	CBL-EX-PWR-C13-CH	China plug, C13 connector, AC 250V 10A power cable.
	CBL-EX-PWR-C13-EU	Europe plug, Type C13 power cable.
	CBL-EX-PWR-C13-C14	10A/250V, 2.5m, EU-only AC power cable.

Quality Certifications

Specification

Juniper EX3400-48P Specification

Product Identity
Product Code	EX3400-48P
Product Description	Juniper EX3400 Ethernet Switch, 48-Port PoE+
Product Type	Fixed 1RU enterprise Ethernet access switch
Product Positioning	Enterprise campus, branch, wiring closet, and access-layer networking
Operating System	Junos OS
Port Configuration
RJ-45 Network Ports	48 × 10/100/1000BASE-T
PoE	PoE+ available on all 48 RJ-45 network ports
PoE Standard	IEEE 802.3at
Maximum PoE Power per Port	Up to 30W
SFP/SFP+ Uplink Ports	4 × dual-mode SFP/SFP+
QSFP+ Ports	2 × 40GbE QSFP+
Management Port	1 × RJ-45 management Ethernet port
Console Ports	1 × RJ-45 console port and 1 × Mini-USB Type-B console port
USB Port	1 × USB Type-A port
Virtual Chassis Ports	2 × QSFP+ ports configured as Virtual Chassis ports by default; can be configured as network ports
Factory Reset	1 × Factory Reset/Mode button
Performance
Packet Switching Capacity	168 Gbps unidirectional / 336 Gbps bidirectional
Layer 2/Layer 3 Throughput	250 Mpps
MAC Addresses	32,000
VLAN IDs	4,096
Jumbo Frames	9,216 bytes
QoS Queues	12 hardware queues per port: 8 unicast and 4 multicast
IPv4 Unicast Host Routes	36,000
IPv4 RIB	14,000
IPv4 Multicast Routes	4,000
IPv6 Unicast Host Routes	18,000
IPv6 RIB	3,500
IPv6 Multicast Routes	2,000
IPv6 Neighbor Discovery Entries	8,000
ARP Entries	16,000
MACsec	Supported; up to 88 Gbps hardware-based traffic encryption on 1GbE and 10GbE ports
Software and Management
Management Platforms	Juniper Wired Assurance, Mist cloud platform, Junos Space Network Director, and Junos Space Management
Management Interfaces	Junos OS CLI, J-Web, serial console, SNMP v1/v2c/v3, SSH, and HTTPS
Zero Touch Provisioning	Supported
Streaming Telemetry	Supported
Virtual Chassis	Up to 10 interconnected EX3400 switches managed as one logical device
Authentication and Access Control	802.1X, RADIUS, TACACS+, and access control lists
Layer 3 Feature Licensing	Feature licenses may be required for selected Layer 3 features
Advanced Licensing	Advanced license required for selected features such as BGP, MBGP, and IS-IS
Premium Licensing	Premium license option available for supported EX switch features
Power and PoE
Power Supply Slots	2
Supported AC Power Supply	JPSU-920-AC-AFO
Power Supply Rating	920W per AC power supply
Maximum PoE Budget with One PSU	740W
Maximum PoE Budget with Two PSUs	1,440W
Maximum System Power Consumption Without PoE	120W
PSU Replacement	Field-replaceable and hot-removable/hot-insertable
Power Supply Airflow	Front-to-back
Cooling Fans	2 fan modules
Fan Airflow	Front-to-back
Fan Replacement	Hot-removable/hot-insertable
Mechanical
Form Factor	1RU fixed configuration
Height	1.72 in. / 4.3688 cm
Width	17.4 in. / 44.2 cm
Width with Rack Brackets	19 in.
Depth Without PSU	13.78 in. / 35.0 cm
Depth with PSU	15.05 in. / 38.2 cm
Chassis Weight Without PSU and Fan Modules	10.49 lb. / 4.76 kg
Shipping Weight	12.78 kg, including packaging (user-confirmed)
Weight with One PSU and Two Fan Modules	12.65 lb. / 5.74 kg
Power Supply Weight	1.87 lb. / 0.85 kg
Fan Module Weight	0.16 lb. / 0.07 kg
Rack Installation	Supported with optional rack mount kits
Airflow Direction	Front-to-back
Environment
Operating Temperature	32° to 113°F / 0° to 45°C
Storage Temperature	–40° to 158°F / –40° to 70°C
Operating Humidity	10% to 85% noncondensing
Nonoperating Humidity	0% to 95% noncondensing
Operating Altitude	Up to 10,000 ft / 3,048 m
Nonoperating Altitude	Up to 16,000 ft / 4,877 m
Acoustic Noise	Up to 46 dB
Seismic Rating	Zone 4
Maintenance Clearance	30 in. / 76.2 cm
Notes and Configuration Conditions
Optics	SFP/SFP+ and QSFP+ transceivers are sold separately
Uplink Mode	Four SFP/SFP+ uplinks are network ports by default and can be configured for Virtual Chassis use
QSFP+ Mode	QSFP+ ports are configured as Virtual Chassis ports by default and can be configured as network ports
PoE Budget Condition	The 740W and 1,440W values depend on whether one or two 920W PSUs are installed
Backplane Speed	The legacy 160 Gbps backplane field is not used; packet switching is specified as 168 Gbps unidirectional / 336 Gbps bidirectional

Still unsure about your config? Talk to an engineer →

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Q&A

Questions & Answers

Are the products sold on router-switch.com authentic?

Yes, router-switch.com only sells 100% genuine products from authorized brands. As a multi-brand authorized distributor, all items are sourced through official channels and include valid manufacturer warranties. Customers may verify authorization via brand websites or request certification documents.

Does the EX3400-48P support Power over Ethernet (PoE)?

Yes, the Juniper EX3400-48P switch supports PoE, providing power to compatible devices over Ethernet.

How can Juniper switches contribute to optimizing ICT product delivery?

Juniper switches offer reliable and high-performance networking, leading to improved ICT product delivery, particularly in terms of speed and reliability.

Which keyword is associated with Juniper's software-defined networking (SDN) solutions?

The keyword "Juniper SDN switches" is relevant when discussing Juniper's switches compatible with SDN architectures.

Learn More

Are the products sold on router-switch.com authentic?

Does the EX3400-48P support Power over Ethernet (PoE)?

Yes, the Juniper EX3400-48P switch supports PoE, providing power to compatible devices over Ethernet.

How can Juniper switches contribute to optimizing ICT product delivery?

Juniper switches offer reliable and high-performance networking, leading to improved ICT product delivery, particularly in terms of speed and reliability.

Which keyword is associated with Juniper's software-defined networking (SDN) solutions?

The keyword "Juniper SDN switches" is relevant when discussing Juniper's switches compatible with SDN architectures.

What are some key factors to consider when selecting Juniper switches for specific applications?

The keyword "Juniper switch selection criteria" can be used to explore factors such as port density, power consumption, performance, and supported features when choosing Juniper switches for specific applications.

How do Juniper switches ensure low latency and high throughput?

Juniper switches incorporate features like cut-through switching and low-latency ASICs to minimize latency and achieve high throughput in data transmission.

How can businesses benefit from Juniper switches in terms of SEO?

Businesses can improve their SEO performance by ensuring that their websites and online services are delivered efficiently with the help of a robust network infrastructure, including Juniper switches.

How do Juniper switches optimize network performance?

Juniper switches employ technologies like Virtual Chassis and Virtual Chassis Fabric to optimize network performance, ensuring high availability and rapid data transfer.

What are some popular models of Juniper switches?

Examples of popular Juniper switches include the Juniper EX Series (e.g., EX2200, EX3300, EX4200) and the Juniper QFX Series (e.g., QFX5100, QFX5200).

How do Juniper switches contribute to network security?

Juniper switches offer advanced security features such as Access Control Lists (ACLs) and VLAN segmentation, helping to enhance network security and mitigate potential threats.

What are Juniper switches?

Juniper switches are network devices used to connect multiple devices within a Local Area Network (LAN) or Wide Area Network (WAN) environment. They facilitate the efficient transfer of data between connected devices.

What is the maximum stacking bandwidth of the juniper EX3400 48P?

The maximum stacking bandwidth of the juniper EX3400 48P depends on the configuration.

Can the juniper EX3400 48P be stacked with other EX3400 switches?

Yes, the juniper EX3400 48P can be stacked with other EX3400 switches.

What is the maximum number of VLANs that the juniper EX3400 48P supports?

The maximum number of VLANs that the juniper EX3400 48P supports depends on the configuration.

Does the juniper EX3400 48P support VLANs?

Yes, the juniper EX3400 48P supports VLANs.

Can the juniper EX3400 48P be managed through a web interface?

Yes, the juniper EX3400 48P can be managed through a web interface.

What is the maximum power consumption of the EX3400 48P?

The maximum power consumption of the EX3400 48P depends on the configuration.

Does the EX3400 48P support PoE?

Yes, the EX3400 48P supports PoE.

What type of Ethernet ports does the EX3400 48P have?

The EX3400 48P has 10/100/1000BASE-T Ethernet ports.

How many ports does the EX3400 48P have?

The EX3400 48P has 48 ports.

What is the form factor of the EX3400 48P?

The EX3400 48P has a 1U form factor.

Does a switch slow down Internet speed?

Ethernet switch won't slow down your connection speed

How can you tell if your network switch is bad?

To verify that your switch is properly working, check the LED lights located at the back panel of the device. They should be lit up to confirm that it is working. By performing a loopback test, you can also confirm that the switch is working.

Warranty

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