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EX4300-48T-AFI
48PORT WEB MNG 10/100/1000 350W AC ENET STACKABLE BCK-FRONT...
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EX4300-48T-AFI is a high-performance Ethernet switch featuring a resilient architecture built for scalability and efficiency in enterprise edge and campus networks. It integrates advanced Virtual Chassis stacking to simplify management while delivering robust performance for mission-critical applications.
This model provides flexible power options via an efficient AC power supply and offers 48 10/100/1000 RJ45 ports along with 4 dedicated 1Gb SFP uplink ports. Designed to support diverse use cases—from data center interconnect to branch connectivity—the EX4300-48T-AFI ensures reliable operation, high throughput, and seamless scalability.
EX4300-48T-AFI price is $2,753.00, a 74.5% saving from the Juniper list price of $10,800.00. EX4300-48T-AFI is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for EX4300-48T-AFI for additional pricing. Browse the full Juniper Ex4300 Series Ethernet Switches series or explore all Juniper products.
In a multi-floor branch office supporting 200+ employees, the EX4300-48T-AFI’s 48 10/100/1000 Mbps ports, 350W AC power and front-to-back airflow maintain resilient gigabit access in a compact wiring closet. Web-managed stacking up to 10 units delivers unified control, zero-touch provisioning and 30% faster deployment. Benefit: streamlines network operations, minimizes downtime and scales easily as the branch grows.
As a top-of-rack leaf in a two-tier data center fabric, the EX4300-48T-AFI provides 48 low-latency 1GbE ports, front-airflow cooling and 350W AC redundancy. Integrated Web management and Virtual Chassis stacking simplify firmware updates and orchestration across 10 racks. Benefit: accelerates east-west VM migration, cuts administrative overhead by 25% and ensures predictable performance under heavy east-west traffic.
In a university’s central comms room, the EX4300-48T-AFI aggregates wired labs, VoIP phones and security cameras over 48 gigabit ports with front-to-back airflow and 350W AC power. Web-based management and up to 480 Gbps stacking bandwidth enable rapid adds/moves/changes across multiple buildings. Benefit: reduces latency for real-time applications by 40%, simplifies network expansion and delivers high availability for thousands of users.
To get the detailed certification, please go to the Compliance Center.
 EX4300-48T-AFI |  EX4300-24T-TAA |  EX4300-24P-TAA |  EX4300-32F-DC |  EX4300-32F | |
|---|---|---|---|---|---|
| Depth | 14.9 inches | 10.7 inches | 10 inches | 10.5 inches | 10.8 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10GbE | 10GbE |
| 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 | 1.73 inches | 1.73 inches | 1.75 inches | 1.75 inches | 1.75 inches |
| IOS | IP Services | IP Services | LAN Base | IP Lite | IP Lite |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | N/A | 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-AFI | EX4300-24T-TAA | EX4300-24P-TAA | EX4300-32F-DC | EX4300-32F |
| Media Type Supported | Twisted Pair | Twisted Pair / Fiber | Twisted Pair | Fiber | Fiber |
| Memory | 512 MB | 512 MB | 256 MB | 256 MB | 512 MB |
| Number of Downlink Ports | 48 Ports | 24 Ports | 24 Ports | 32 Ports | 32 Ports |
| Number of Ethernet Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | POE+ | Non POE | Non POE |
| Port/Expansion Slot Details | 48 x 10/100/1000 RJ45 ports and 4 x 1Gb SFP ports | 24 x 10/100/1000 Ethernet ports and 4 x 1/10G SFP+ uplink ports | 24 PoE+ ports and 4 SFP+ uplink ports | N/A | N/A |
| Power Consumption | 95W | 46 W | N/A | 63W | 90W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | DC Power Supply | AC Power Supply |
| Product Name | EX4300-48T-AFI Ethernet Switch | EX4300-24T-TAA Ethernet Switch | Juniper Networks EX4300-24P-TAA Ethernet Switch | Juniper Networks EX4300-32F-DC Ethernet Switch | Juniper Networks EX4300-32F 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 | 4 SFP Ports | 4 SFP Ports | 32 SFP+ Ports | 32 SFP+ Ports |
| Switching Capacity | 176 Gbps | 128 Gbps | 128 Gbps | 640 Gbps | 640 Gbps |
| Switching Capacity with Stacking | 352 Gbps | N/A | 320 Gbps | 640 Gbps | 640 Gbps |
| Uplink Configuration | 1G | 1G / 10G | 10G | 10G | 10G |
| Weight | 18 lbs | 7.5 lbs | 13 lbs | 8.6 lbs | 7.5 lbs |
| Width | 17.3 inches | 17.5 inches | 17.56 inches | 17.5 inches | 17.5 inches |
Reliable access switch with consistent throughput. Back to front airflow suited our rack layout perfectly.
Stable operation since deployment. Performs well under daily user traffic without slowdown.
Solid choice for enterprise access networks. Easy to manage and integrates well with Juniper stacks.
No issues with performance or hardware. It has been running continuously without interruption.
Good balance of features and reliability. Suitable for structured office environments.
The EX4300-48T-AFI is a 1U, 48-port managed Ethernet access switch offering 48 10/100/1000BASE-T ports, 4 10GbE SFP+ uplinks, a 350W AC power supply, Virtual Chassis stacking and back-to-front airflow for data center environments.
Key features include 48 1GbE RJ45 ports, 4 10GbE SFP+ uplinks, Junos OS, Virtual Chassis support (up to 10 units), 176 Gbps switching capacity, advanced L2/L3 protocols, and back-to-front airflow.
It provides 48 10/100/1000BASE-T copper access ports and 4 dedicated 10GbE SFP+ uplink ports for high-speed aggregation.
No, the EX4300-48T-AFI does not support Power over Ethernet or PoE+; it is designed for non-PoE deployments.