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EX4300-48P
Juniper EX4300 48-P L3 PoE Managed Network Switch
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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 is $3,840.00, a 71.6% saving from the Juniper list price of $13,500.00. 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 category range or explore all Juniper products.
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.
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.
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.
To get the detailed certification, please go to the Compliance Center.
 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 |
| Port/Expansion Slot Details | N/A | 48 10/100/1000 copper ports, 4 SFP+ uplink ports | N/A | 24 QSFP28 fixed ports | N/A |
| Power Consumption | 320W | 220 W | 300W | N/A | 250 W |
| 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 |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 48 SFP Ports | N/A | 48 SFP Ports |
| Switching Capacity | 128 Gbps | 1120 Gbps | 1280 Gbps | 4800 Gbps | 1280 Gbps |
| Switching Capacity with Stacking | 256 Gbps | 320 Gbps | N/A | N/A | 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 |
Deployed this switch across our office floors. PoE performance is consistent, stacking works smoothly, and uptime has been rock solid under daily enterprise workloads.
Reliable Layer 3 switch with strong PoE output. Handles access layer traffic efficiently and integrates well into our existing Juniper environment.
We chose this for campus networking. Configuration was straightforward, and it has performed reliably without unexpected reboots or power issues.
Excellent switch for IP phones and access points. Power delivery is stable and management via Junos feels predictable and enterprise ready.
Solid build quality and dependable performance. It has handled heavy user traffic without latency spikes or operational concerns.
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.
Yes. The EX4300-48P supports static routes, OSPF, RIP, BGP, and VRRP for resilient, high-performance Layer 3 routing.
The switch provides up to 740 W total PoE budget and delivers up to 30 W per port, supporting 802.3af/at devices.
It offers 176 Gbps non-blocking switching capacity and up to 130.95 million packets per second (Mpps) forwarding performance.