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Strong access switch with high uplink capacity.
EX3400-48T
EX3400 48PORT 10/100/1000BASET 4X1/10G SFP/SFP+ 2X40G QSFP+
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$6,460.00
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EX3400-48T
EX3400 48PORT 10/100/1000BASET 4X1/10G SFP/SFP+ 2X40G QSFP+
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EX3400-48T is a high-performance rack-mount Ethernet switch built on a robust architecture that delivers reliable Layer 2 and basic Layer 3 services for campus and enterprise network access. Designed with diverse power options and optimized for energy efficiency, the switch supports an AC power supply configuration and non-POE operation while providing 48 high-speed 10/100/1000 twisted pair ports with an additional 4 SFP ports for uplinks and stacking.
EX3400-48T features Virtual Chassis stacking technology for seamless scalability, ensuring that multiple units behave as a single device to simplify management and expand network capacity. Its proven performance, enhanced switching capacity, and stacking capability make it ideal for a wide range of use cases including branch connectivity, campus aggregation, and small-to-medium enterprise deployments.
EX3400-48T price is $1,380.00, a 78.6% saving from the Juniper list price of $6,460.00. EX3400-48T is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for EX3400-48T for additional pricing. Browse the full Juniper Ex3400 Series Ethernet Switches series or explore all Juniper products.
In a Fortune 500 data center, the EX3400-48T is deployed as a Top-of-Rack (ToR) leaf switch connecting 48 1 GbE servers with 4×10 GbE SFP+ and 2×40 GbE QSFP+ uplinks into a spine network. This configuration delivers wire-speed forwarding, sub-microsecond latency, and non-blocking 1.2 Tbps throughput while simplifying operations with Junos® automation. Benefit: Scalable server aggregation with predictable low latency and simplified fabric management for high-performance compute workloads.
At a 1,000-employee corporate campus, the EX3400-48T serves as a distribution switch in wiring closets, aggregating PoE-powered IP phones, Wi-Fi APs, and desktops over 48 10/100/1000 Base-T ports. Redundant 40 GbE QSFP+ uplinks connect to the core, enabling rapid failover and high-availability. Benefit: Centralized distribution with full-line-rate switching, built-in high availability, and seamless Juniper Virtual Chassis stacking for simplified maintenance and minimal downtime.
In a nationwide retail chain, two EX3400-48T switches form a Virtual Chassis to aggregate point-of-sale terminals, CCTV cameras, and Wi-Fi hotspots across a store footprint. 40 GbE QSFP+ links between chassis deliver resilient, high-capacity backhaul to the regional data center. Benefit: Unified management of a highly available branch network with sub-second failover, reducing operational costs and ensuring uninterrupted customer service.
To get the detailed certification, please go to the Compliance Center.
 EX3400-48T |  EX3400-48T-TAA |  EX3400-48P-TAA |  EX3400-24P-TAA |  EX3400-24P | |
|---|---|---|---|---|---|
| Depth | 12.4 inches | 17 inches | 11.8 inches | 10.7 inches | 11 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 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 | 1.73 inches | 1.75 inches | 1.73 inches | 1.73 inches | 1.75 inches |
| IOS | LAN Base | IP Lite | LAN Base | LAN Base | 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 | EX3400-48T | EX3400-48T-TAA | EX3400-48P-TAA | EX3400-24P-TAA | EX3400-24P |
| Media Type Supported | Twisted Pair | Twisted Pair | Twisted Pair / Fiber | Twisted Pair / Fiber / Combo | Twisted Pair / Fiber / Combo |
| Memory | 512 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 48 Ports | 48 Ports | 48 Ports | N/A | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | 12–24 Ports |
| POE Support | Non POE | Non POE | POE+ | POE+ | POE+ |
| Port/Expansion Slot Details | N/A | 48 x 10/100/1000 ports, 4 x 1G SFP slots | 48 PoE 10/100/1000 ports and 4 10Gb SFP+ uplink ports | 24 x 10/100/1000 PoE+ ports and 4 x 1G SFP uplink ports | 24 PoE ports and 4 SFP uplink ports |
| Power Consumption | 95W | 230W | N/A | 370 W | 370 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Juniper EX3400-48T Ethernet Switch | Juniper EX3400-48T-TAA Ethernet Switch | Juniper EX3400-48P-TAA Ethernet Switch | Juniper EX3400-24P-TAA Ethernet Switch | Juniper EX3400-24P 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 | Yes |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 176 Gbps | 176 Gbps | 1440 Gbps | 128 Gbps | 128 Gbps |
| Switching Capacity with Stacking | 352 Gbps | 352 Gbps | 1440 Gbps | 320 Gbps | 320 Gbps |
| Uplink Configuration | 1G | 1G | 10G | 1G | 1G |
| Weight | 14 lbs | 14 lbs | 13 lbs | 15 lbs | 10 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches |
Strong access switch with high uplink capacity.
Handled user traffic smoothly.
Stable and reliable.
Good stacking support.
Enterprise grade.