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Andrew Bennett
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Strong PoE budget for access layer deployments.
EX4300-48P-TAA
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EX4300 TAA, 48-Port 10/100/1000BaseT PoE-plus + 1100W AC PS...
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EX4300-48P-TAA
- Description:
- EX4300 TAA, 48-Port 10/100/1000BaseT PoE-plus + 1100W AC PS (provides 800W PoE+ power)
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- Brand:
- Juniper
- GTIN:
- 779184847212
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EX4300-48P-TAA Overview
EX4300-48P-TAA delivers a high-performance switching architecture designed for enterprise and campus deployments. It features an advanced design with PoE+ capabilities, versatile AC power options, and a rich array of 10/100/1000 Ethernet ports that enable efficient data transmission and connectivity.
Optimized for scalability and future growth, the switch supports Virtual Chassis stacking to seamlessly expand network capacity while maintaining high performance. Ideal for access and aggregation use cases, EX4300-48P-TAA offers reliable connectivity for environments requiring high-density power delivery and enhanced network management.
EX4300-48P-TAA price is is available on request. Get immediate quote.
Request bulk order quote for EX4300-48P-TAA for additional pricing. Browse the full Juniper Ex4300 Series Ethernet Switches series or explore all Juniper products.
EX4300-48P-TAA Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 370 W
- 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-TAA
- Uplink Configuration
- 1G
- IOS
- LAN Base
- POE Support
- POE+
- SFP Ports
- 4 SFP Ports
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Port/Expansion Slot Details
- N/A
- Flash Memory
- 64 MB
- Switching Capacity
- 176 Gbps
- Switching Capacity with Stacking
- 320 Gbps
- Product Name
- Juniper EX4300-48P-TAA Ethernet Switch
- Height
- 1.73 inches
- Width
- 17.5 inches
- Depth
- 17.3 inches
- Weight
- 12 lbs
EX4300-48P-TAA Use Case
Unified Campus Network for High-Density Wi-Fi and VoIP
A large university deploys EX4300-48P-TAA switches in each building’s wiring closet to power 40+ 802.11ax access points and IP phones over a single fiber uplink. With 800W of PoE+ capacity and Virtual Chassis scaling, IT teams deliver consistent 1 Gbps connectivity, seamless roaming, and centralized management. Outcome: simplified cabling, predictable performance under peak load, and 30% faster VoIP setup times.
Retail Omni-Channel Experience with Digital Signage & PoS
A national retail chain installs EX4300-48P-TAA switches in store backrooms to power digital signage, barcode scanners, and point-of-sale terminals using 48-port PoE+. Integrated QoS and VXLAN support prioritize transaction traffic while isolating guest Wi-Fi. Outcome: 99.9% network uptime, unified store floor communications, and a 25% reduction in on-site network maintenance costs.
Industrial IoT Integration for Smart Manufacturing
A manufacturing plant leverages EX4300-48P-TAA to connect IP cameras, environmental sensors, and automated guided vehicles across the production floor. The switch’s robust PoE+ power budget and redundant AC power supplies ensure continuous operations in harsh conditions. Outcome: real-time visibility into production metrics, 20% improvement in equipment uptime, and streamlined predictive maintenance workflows.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| EX4300-48P-TAA |  EX4300-48T-DC |  EX4300-48T-AFI-TAA |  EX4300-32F |  EX4300-48T-DC-TAA | |
|---|---|---|---|---|---|
| Depth | 17.3 inches | 11.5 inches | 11 inches | 10.8 inches | 11.3 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10GbE | 10/100/1000 |
| Flash Memory | 64 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.73 inches | 1.75 inches | 1.75 inches | 1.75 inches | 1.73 inches |
| IOS | LAN Base | LAN Base | IP Lite | IP Lite | IP Lite |
| 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 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | EX4300-48P-TAA | EX4300-48T-DC | EX4300-48T-AFI-TAA | EX4300-32F | EX4300-48T-DC-TAA |
| Media Type Supported | Twisted Pair | Twisted Pair / Fiber | Twisted Pair | Fiber | Twisted Pair |
| Memory | 256 MB | 256 MB | 4 GB | 512 MB | 512 MB |
| Number of Downlink Ports | 48 Ports | 48 Ports | 48 Ports | 32 Ports | 48 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | POE+ | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | N/A | N/A | 48 fixed 10/100/1000 Ethernet ports and 4 dedicated 1G SFP uplink ports | N/A | 48 x 10/100/1000 copper ports, 4 SFP uplink ports |
| Power Consumption | 370 W | 30 W | 370 W | 90W | 250W |
| Power Source | AC Power Supply | DC Power Supply | Redundant Power Supply | AC Power Supply | N/A |
| Product Name | Juniper EX4300-48P-TAA Ethernet Switch | EX4300-48T-DC Ethernet Switch | Juniper Networks EX4300-48T-AFI-TAA Ethernet Switch | Juniper Networks EX4300-32F Ethernet Switch | Juniper Networks EX4300-48T-DC-TAA 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 | Yes | No | No |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 32 SFP+ Ports | 4 SFP Ports |
| Switching Capacity | 176 Gbps | 176 Gbps | 1280 Gbps | 640 Gbps | 176 Gbps |
| Switching Capacity with Stacking | 320 Gbps | 352 Gbps | N/A | 640 Gbps | N/A |
| Uplink Configuration | 1G | 1G / 10G | 1G | 10G | 1G / 10G |
| Weight | 12 lbs | 13 lbs | 12 lbs | 7.5 lbs | 13 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches |
Reviews & Ratings
L
Luke Patterson
5
TAA compliance simplified procurement.
V
Victor Hayes
4
Reliable switching performance.
D
Daniel Wright
4
Easy to stack and manage.
J
James Foster
5
Very dependable.
Questions & Answers
What is the Juniper EX4300-48P-TAA switch?
The EX4300-48P-TAA is a 48-port 10/100/1000Base-T PoE+ switch with an 800W PoE budget and 1100W AC supply, designed for secure, high-density enterprise access under TAA compliance.
How much PoE+ power does the EX4300-48P-TAA deliver?
The switch provides up to 800W of IEEE 802.3at PoE+ power across 48 ports, supporting VoIP phones, wireless APs and surveillance cameras without external injectors.
What throughput and performance does the EX4300-48P-TAA offer?
With a non-blocking throughput of 176 Gbps and forwarding capacity of 131 Mpps, the EX4300-48P-TAA handles demanding Layer 2 and Layer 3 workloads at wire speed.
Is the EX4300-48P-TAA TAA-compliant?
Yes, the EX4300-48P-TAA meets Trade Agreements Act (TAA) requirements for U.S. government procurement, ensuring secure procurement in regulated environments.
Does the EX4300-48P-TAA support Virtual Chassis technology?
Yes, Juniper’s Virtual Chassis lets you interconnect up to 10 EX4300 switches as a single, logical device for unified management and high availability.
What management interfaces are available on the EX4300-48P-TAA?
You get a front-panel RJ-45 console port, dual 1GbE out-of-band management ports, and an optional Junos Space Network Director for centralized orchestration.
Which Layer 3 features are supported?
The switch supports static routing, OSPF, RIP, VRRP, BGP, and policy-based routing, enabling robust campus and branch network deployments at Layer 3.
How do I mount the EX4300-48P-TAA?
The EX4300-48P-TAA ships with rack-mount ears and fits standard 19-inch racks, occupying 1 RU with front-to-back airflow for efficient cooling.
What are the typical use cases for EX4300-48P-TAA?
Ideal for enterprise access, edge data centers, IP telephony, and wireless LAN aggregation, the switch delivers power, performance and TAA compliance in one platform.
What redundancy features are included?
The EX4300-48P-TAA offers dual power supplies and redundant fan trays, plus Virtual Chassis and graceful Routing Engine switchover for uninterrupted operations.
How energy efficient is the EX4300-48P-TAA?
With Juniper’s Power-Saving PoE feature, low-power idle and fan speed automation, the switch reduces operational costs while delivering full PoE+ budget.
What environmental specifications apply?
Operating between 0°C and 40°C with humidity up to 85% non-condensing, the EX4300-48P-TAA meets NEBS and ETSI standards for enterprise deployments.
Which security features are supported?
Built-in MACsec encryption, Storm Control, Dynamic ARP Inspection, DHCP snooping and Radius/TACACS+ authentication protect against network threats and ensure data integrity.
What warranty and support options are available?
Juniper offers a limited lifetime hardware warranty, with options for advanced replace, 24×7 Juniper Care, and software feature upgrades via Juniper Software Advantage.
Can I stack EX4300-48P-TAA with non-TAA switches?
Yes, you can mix TAA and non-TAA EX4300 models in the same Virtual Chassis stack, ensuring unified management and seamless feature parity across all members.
How do I monitor PoE usage on the EX4300-48P-TAA?
Use Junos OS CLI, J-Web GUI or SNMP MIBs to view real-time PoE power consumption per port, set power allocation limits and generate usage reports for capacity planning.