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EX4300-48P
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Juniper EX4300 48-P L3 PoE Managed Network Switch
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Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
EX4300-48P
- Description:
- Juniper EX4300 48-P L3 PoE Managed Network Switch
- Rating:
Added to cart 28 times recently
- Availability:
Ready to Ship
- Brand:
- Juniper
- GTIN:
- 0832938063549
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 90
- List Price:
$1,290.00
- Price:
$193.5285% off
Quantity:
1
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EX4300-48P Overview
EX4300-48P is a high-performance, fixed-configuration Ethernet switch built on a robust architecture designed for both enterprise and campus networks. It features a reliable AC power supply with PoE+ support on all 48 Gigabit Ethernet ports, offering seamless connectivity options and delivering efficient performance for power-hungry devices.
This switch supports both Layer 2 and Layer 3 functionalities, enabling advanced routing and switching capabilities while providing stacking and scalability options through Virtual Chassis technology. Its compact rack-mount design, superior switching capacity, and robust port configuration make it ideal for data centers, branch offices, and high-density network environments.
EX4300-48P price for new stock is $822.15, a 93.9% saving from the Juniper list price of $13,500.00. EX4300-48P refurb price is $193.52. EX4300-48P is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for EX4300-48P for additional pricing. Browse the full Juniper Ex4300 Series Ethernet Switches series or explore all Juniper products.
EX4300-48P Specifications
- Product Type
- Switch
- Brand
- Juniper
- Power Source
- AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 320W
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 48 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Twisted Pair
- Redundant Power Supply Supported
- No
- Manufacturer Part Number
- EX4300-48P
- Uplink Configuration
- 1G
- IOS
- IP Lite
- POE Support
- POE+
- SFP Ports
- 4 SFP Ports
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Flash Memory
- 256 MB
- Switching Capacity
- 128 Gbps
- Switching Capacity with Stacking
- 256 Gbps
- Product Name
- EX4300-48P Ethernet Switch
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 11 inches
- Weight
- 12 lbs
EX4300-48P Use Case
Enterprise Campus Edge with Unified PoE Services
In a multi-building corporate campus deploying high-density Wi-Fi 6 access points and IP telephony, the EX4300-48P delivers 48 PoE+ ports with 765 W total power budget. Its Layer 3 routing and Virtual Chassis capabilities simplify network segmentation, delivering dedicated bandwidth for voice and data traffic. Outcome: Consistent 10 Gbps uplinks, zero downtime during software upgrades, and simplified operations reduce TCO by 30% while ensuring predictable QoS for mission-critical voice and wireless services.
Smart Building Surveillance and Access Control
A city government integrates 200+ PoE cameras, door controllers, and environmental sensors across municipal facilities. The EX4300-48P’s high-power PoE+ ports support up to 30 W per port, enabling both cameras and advanced IR lighting. In-band telemetry (Junos Telemetry Interface) feeds real-time video health metrics to the NOC. Outcome: Centralized management cuts deployment time in half, ensures 99.99% uptime, and slashes cabling complexity—enhancing public safety with reliable 24/7 surveillance.
Branch Office Resiliency with Virtual Chassis Fabric
A nationwide retailer standardizes 150 branch locations on a dual-EX4300-48P Virtual Chassis to deliver in-store PoE for point-of-sale terminals, digital signage, and Wi-Fi for guests. Automated failover and unified Junos OS management enable seamless software rollouts and rapid fault isolation. Outcome: 100% service availability during peak shopping hours, 40% faster site onboarding, and centralized policy enforcement that strengthens security and compliance across the retail network.
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Product Comparison Table 
| EX4300-48P |  EX4300-48T-DCI-TAA |  QFX5100-48S-DC-AFI |  QFX5100-24Q-3AFI |  QFX5100-48S-3AFI | |
|---|---|---|---|---|---|
| Depth | 11 inches | 12.8 inches | 10.7 inches | 18.5 inches | 18 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/25/40/100GbE | 10/100/1000 |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.72 inches | 1.75 inches | 1.7 inches |
| IOS | IP Lite | IP Lite | IP Services | Junos OS | IP Services |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/25/40/100GbE | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | EX4300-48P | EX4300-48T-DCI-TAA | QFX5100-48S-DC-AFI | QFX5100-24Q-3AFI | QFX5100-48S-3AFI |
| Media Type Supported | Twisted Pair | Twisted Pair | Fiber | Fiber / Copper | Fiber |
| Memory | 256 MB | 512 MB | 512 MB | 4 GB | 4 GB |
| Number of Downlink Ports | 48 Ports | 48 Ports | 48 Ports | 24 Ports | 48 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports |
| POE Support | POE+ | Non POE | Non POE | Non POE | Non POE |
| Power Source | AC Power Supply | AC Power Supply | DC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | EX4300-48P Ethernet Switch | Juniper Networks EX4300-48T-DCI-TAA | Juniper Networks QFX5100-48S-DC-AFI Datacenter Switch | Juniper Networks QFX5100-24Q-3AFI | Juniper QFX5100-48S-3AFI |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | No | No | Yes | Yes |
| Switching Capacity | 128 Gbps | 1120 Gbps | 1280 Gbps | 4800 Gbps | 1280 Gbps |
| Uplink Configuration | 1G | 1G / 10G | 40G | 40G/100G | 40G |
| Weight | 12 lbs | 17 lbs | 21 lbs | 25 lbs | 15 lbs |
| Width | 17.5 inches | 17.3 inches | 17.17 inches | 17.5 inches | 17.5 inches |
Compliance & Warranty
100% Genuine Product Guarantee
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.
Up to 3-Year Warranty Coverage
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.
Hassle-Free RMA & Returns
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.
Rigorously Tested & Quality Assured
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.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
D
Daniel Hargreaves
Reviewed on the 20 May 2022
5
Deployed this switch across our office floors. PoE performance is consistent, stacking works smoothly, and uptime has been rock solid under daily enterprise workloads.
R
Rashid Mehmood
Reviewed on the 27 June 2020
5
Reliable Layer 3 switch with strong PoE output. Handles access layer traffic efficiently and integrates well into our existing Juniper environment.
T
Thomas Velasquez
Reviewed on the 15 January 2025
5
We chose this for campus networking. Configuration was straightforward, and it has performed reliably without unexpected reboots or power issues.
B
Bilal Ahmed
Reviewed on the 5 April 2021
5
Excellent switch for IP phones and access points. Power delivery is stable and management via Junos feels predictable and enterprise ready.
S
Steven Collins
Reviewed on the 3 August 2022
5
Solid build quality and dependable performance. It has handled heavy user traffic without latency spikes or operational concerns.
Questions & Answers
What are the key features of the Juniper EX4300-48P Layer 3 PoE Managed Network Switch?
The EX4300-48P delivers 48 PoE+ 10/100/1000 Mbps ports with a 740 W power budget, four 10 GbE SFP+ uplinks, 176 Gbps switching capacity, Virtual Chassis stacking (up to 10 units), and full Junos OS Layer 2/3 capabilities.
Does the EX4300-48P support Layer 3 routing?
Yes. The EX4300-48P supports static routes, OSPF, RIP, BGP, and VRRP for resilient, high-performance Layer 3 routing.
What is the total PoE budget and per-port power on the EX4300-48P?
The switch provides up to 740 W total PoE budget and delivers up to 30 W per port, supporting 802.3af/at devices.
What switching capacity and forwarding rate does the EX4300-48P offer?
It offers 176 Gbps non-blocking switching capacity and up to 130.95 million packets per second (Mpps) forwarding performance.
Can I stack the EX4300-48P with other Juniper switches?
Yes. Using Virtual Chassis technology, you can stack up to 10 EX4300 switches or mix with EX4600 for unified management and high availability.
Which management interfaces and protocols are supported?
The EX4300-48P supports CLI, J-Web GUI, Junos Space, SNMP, NETCONF, and Juniper’s RESTful API for automated network operations.
What are the physical dimensions and power requirements?
The switch is 1 U, 17.5" (445 mm) deep, weighs 7.5 kg, and consumes up to 550 W (excluding PoE), with dual redundant AC power options.
Is the EX4300-48P suitable for enterprise branch and campus deployments?
Yes. Its PoE+ support, Virtual Chassis stacking, and robust Layer 2/3 features make it ideal for high-density, mission-critical branch and campus networks.
What transceivers and cabling does the EX4300-48P support?
It includes four 10 GbE SFP+ uplinks compatible with Juniper and third-party SFP+/SFP transceivers, and recommends Cat5e or higher twisted-pair cabling for copper ports.
What security features are built into the EX4300-48P?
Built-in security includes 802.1X authentication, DHCP snooping, dynamic ARP inspection, MAC limiting, storm control, and Port Security to protect against network attacks.
How do I upgrade the Junos OS on the EX4300-48P?
Use the CLI command ‘request system software add <package〉’ followed by ‘request system reboot’ or perform the upgrade via J-Web for seamless package activation.
What QoS capabilities are available on the EX4300-48P?
It offers eight hardware queues per port, 802.1p and DSCP classification, strict priority and weighted scheduling, traffic shaping, and policing for end-to-end performance.
How does the EX4300-48P ensure network resiliency?
It uses Virtual Chassis redundancy, VRRP, nonstop active routing (NSR), nonstop bridging (NSB), and hitless failover to maintain continuous network operation.
What is the warranty and support policy for the EX4300-48P?
Juniper provides a one-year limited hardware warranty and 90-day software updates; Juniper Care options extend support, next-day hardware replacement, and 24/7 response.
Which cabling standards are required for PoE on EX4300-48P?
Use Cat5e or higher twisted-pair cabling, terminated with RJ-45 connectors, to ensure reliable 802.3af/at PoE+ delivery up to 100 meters per port.