United States$5,000,000+
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Ryan Mitchell
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Dependable access switch with stable gigabit performance. Works well as part of a larger Juniper deployment.
EX4300-48T
EX4300, 48-Port 10/100/1000BaseT + 350W AC PS
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EX4300-48T
- Description:
- EX4300, 48-Port 10/100/1000BaseT + 350W AC PS
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- Brand:
- Juniper
- GTIN:
- 832938063587
- Condition:
- Warranty:
- 3
- List Price:
$10,800.00
- Price:
$1,714.0084.1% off
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EX4300-48T Overview
EX4300-48T is built on a robust, scalable architecture designed to deliver high-performance switching with advanced stacking capabilities, versatile power options, and a full suite of connectivity features. Engineered for demanding environments, this switch comes standard with 48 10/100/1000 Ethernet ports and 10Gb SFP+ uplink slots that enable seamless integration and simplified network management.
Optimized for enterprise, campus, and data center access layers, the EX4300-48T leverages Virtual Chassis technology to provide efficient stacking and high throughput, ensuring low latency even under intensive workloads. Its proven performance and flexible configuration make it an ideal choice for applications ranging from critical business operations to high-speed data transfers.
EX4300-48T price is $1,714.00, a 84.1% saving from the Juniper list price of $10,800.00. EX4300-48T is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for EX4300-48T for additional pricing. Browse the full Juniper Ex4300 Series Ethernet Switches series or explore all Juniper products.
EX4300-48T Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 150W
- 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
- EX4300-48T
- Uplink Configuration
- 10G
- IOS
- LAN Lite
- POE Support
- Non POE
- SFP Ports
- 4 SFP Ports
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Port/Expansion Slot Details
- 48 x 10/100/1000 RJ45 ports, 4 x 10Gb SFP+ uplink ports
- Flash Memory
- 256 MB
- Switching Capacity
- 128 Gbps
- Switching Capacity with Stacking
- 320 Gbps
- Product Name
- Juniper Networks EX4300-48T Ethernet Switch
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 17.3 inches
- Weight
- 13.6 lbs
EX4300-48T Use Case
Data Center Top-of-Rack Switching with Virtual Chassis
In a hyperconverged data center rack hosting virtualization clusters and storage arrays, the EX4300-48T-EX4300 with 350W AC PS is configured as a Virtual Chassis to provide 48×1GbE host ports and dual 10GbE uplinks. Benefit: Delivers non-blocking throughput, sub-50ms failover and unified Junos OS management, resulting in streamlined operations, maximum uptime and reduced OPEX.
Campus Access Layer for High-Density Enterprise Offices
At a large corporate headquarters supporting 1,200+ employees, the EX4300-48T-EX4300 serves as the access-layer switch delivering 48×10/100/1000Base-T ports and PoE-ready power capacity via its 350W AC PS. Benefit: Enables scalable Gigabit connectivity for desktops, VoIP phones and Wi-Fi APs with policy-based segmentation, achieving consistent performance, simplified QoS enforcement and centralized security.
Branch Office Aggregation with SD-WAN Integration
In regional branch deployments requiring multi-WAN resilience and local breakout, the EX4300-48T-EX4300 aggregates 1GbE LAN links, SD-WAN CPE and IP telephony over its 48 copper ports and dual uplinks. Benefit: Provides Virtual Chassis stacking, advanced OAM and Juniper Secure Analytics integration, delivering dynamic path selection, rapid failover and reduced latency for critical applications.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 EX4300-48T |  EX4300-32F-DC-TAA |  EX4300-32F-DC |  EX4300-24P |  EX4300-48T-DC-AFI | |
|---|---|---|---|---|---|
| Depth | 17.3 inches | 10.7 inches | 10.5 inches | 11.57 inches | 11 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10GbE | 10/100/1000 | 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 | 1.73 inches | 1.75 inches | 1.73 inches | 1.75 inches |
| IOS | LAN Lite | IP Lite | IP Lite | IP Lite | N/A |
| Interface Ports | 10/100/1000 | 10/100/1000 | N/A | 10/100/1000 | 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 | EX4300-48T | EX4300-32F-DC-TAA | EX4300-32F-DC | EX4300-24P | EX4300-48T-DC-AFI |
| Media Type Supported | Twisted Pair | Fiber | Fiber | Twisted Pair | Twisted Pair |
| Memory | 256 MB | 512 MB | 256 MB | 512 MB | 256 MB |
| Number of Downlink Ports | 48 Ports | 32 Ports | 32 Ports | 24 Ports | 48 Ports |
| Number of Ethernet Ports | 24–48 Ports | N/A | 24–48 Ports | 12–24 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | POE+ | Non POE |
| Port/Expansion Slot Details | 48 x 10/100/1000 RJ45 ports, 4 x 10Gb SFP+ uplink ports | N/A | N/A | 24 PoE ports, 4 SFP+ uplink ports | 48 copper 10/100/1000 ports and 4 SFP uplink ports |
| Power Consumption | 150W | 70 W | 63W | 150W | 39 W |
| Power Source | AC Power Supply | DC Power Supply | DC Power Supply | AC Power Supply | N/A |
| Product Name | Juniper Networks EX4300-48T Ethernet Switch | Juniper Networks EX4300-32F-DC-TAA | Juniper Networks EX4300-32F-DC Ethernet Switch | Juniper EX4300-24P Ethernet Switch | EX4300-48T-DC-AFI Ethernet Switch |
| 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 | No | No |
| SFP Ports | 4 SFP Ports | 32 SFP Ports | 32 SFP+ Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 128 Gbps | 128 Gbps | 640 Gbps | 128 Gbps | 176 Gbps |
| Switching Capacity with Stacking | 320 Gbps | 256 Gbps | 640 Gbps | N/A | 352 Gbps |
| Uplink Configuration | 10G | 10G | 10G | 10G | 1G |
| Weight | 13.6 lbs | 7.3 lbs | 8.6 lbs | 18.3 lbs | 16 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.28 inches | 17.5 inches |
Reviews & Ratings
S
Shahzad Khan
5
Configured quickly and has remained stable. A practical solution for enterprise LAN environments.
E
Edward Nolan
5
Consistent switching performance and solid hardware build. No complaints from daily operations.
N
Nouman Iqbal
4
Handles user traffic smoothly. Stacking support made expansion easy.
J
James Holloway
4
Reliable and predictable behavior. Meets enterprise networking expectations without surprises.
Questions & Answers
What is the Juniper EX4300-48T switch?
The Juniper EX4300-48T is a high-performance, rack-mountable Ethernet switch offering 48 10/100/1000Base-T ports with integrated Virtual Chassis stacking and a 350W AC power supply.
What are the key features of the EX4300-48T?
Key features include 48 Gigabit RJ-45 ports, four 10GbE QSFP+ uplinks, Virtual Chassis technology for up to 10 units, Junos OS, and a 350W AC power supply.
What throughput and switching capacity does the EX4300-48T deliver?
The EX4300-48T delivers 176 Gbps of switching capacity and up to 131 Mpps forwarding performance for wire-speed L2/L3 traffic.
Does the EX4300-48T support Virtual Chassis technology?
Yes, the EX4300-48T supports Juniper Virtual Chassis technology, allowing up to 10 switches to operate as a single logical device.
How many stacking ports are available on the EX4300-48T?
The EX4300-48T provides four dedicated 10GbE QSFP+ ports for Virtual Chassis and high-speed uplink connectivity.
What power supply comes with the EX4300-48T?
The EX4300-48T ships with a built-in 350W AC power supply supporting universal 100–240V operation.
Does the EX4300-48T support Power over Ethernet (PoE)?
No, the EX4300-48T model does not include PoE capabilities; for PoE support, consider the EX4300-48P variant.
What management options are available on the EX4300-48T?
Management options include Junos OS CLI, Juniper Network Director, Junos Space, SNMP, NetConf, and a built-in web interface.
What is the operating environment for the EX4300-48T?
The EX4300-48T operates in temperatures from 0°C to 40°C, with humidity ranging from 5% to 90% non-condensing.
What warranty and support options are offered for the EX4300-48T?
The EX4300-48T includes a limited lifetime hardware warranty with next-business-day advance replacement and optional Juniper Care support.
What licensing model does the EX4300-48T use?
The EX4300-48T uses a base feature license for L2 switching and includes an Enhanced Feature License for advanced routing protocols.
What are the typical use cases for the EX4300-48T?
Typical use cases include enterprise campus access, data center top-of-rack aggregation, and virtualized network edge deployments.
What is the MTBF (Mean Time Between Failures) of the EX4300-48T?
The EX4300-48T has an MTBF exceeding 600,000 hours for reliable continuous operation in demanding environments.
How energy-efficient is the EX4300-48T?
The EX4300-48T features variable-speed fans and 80 PLUS certified power efficiency, reducing power consumption under low to medium load.
Is the EX4300-48T compatible with other Juniper EX Series switches?
Yes, the EX4300-48T is fully interoperable with other EX Series switches in a unified Virtual Chassis configuration.
Does the EX4300-48T support Layer 3 routing protocols?
Yes, the EX4300-48T supports static routing, RIP, OSPF, BGP, VRRP, and MLAG with the Enhanced Feature License.
What is the port density and uplink speed on the EX4300-48T?
The EX4300-48T offers 48 Gigabit Ethernet ports for client access and four 10GbE QSFP+ uplinks for high-speed aggregation.