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Great SFP density for aggregation roles.
EX4300-32F
EX4300, 32-Port 1000BaseX SFP, 4x10GBaseX SFP+ and 350W AC P...
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EX4300-32F
- Description:
- EX4300, 32-Port 1000BaseX SFP, 4x10GBaseX SFP+ and 350W AC PS (Optics sold separately)
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- Brand:
- Juniper
- GTIN:
- 832938064539
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- Warranty:
- 3
- List Price:
$12,945.00
- Price:
$3,469.0073.2% off
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1
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EX4300-32F Overview
EX4300-32F is a high-performance, fixed-configuration fiber switch built on a scalable architecture that delivers consistent throughput for mission-critical applications. Designed with a robust internal design that supports stacking and future growth, it features 32 fixed 10GbE SFP+ ports, an energy‐efficient AC power supply, and a rack-mount form factor ideal for enterprise, data center, and campus deployments.
EX4300-32F offers high switching performance with non-blocking throughput and virtual chassis stacking capabilities that enable simplified management and expansion. Built for low latency and high density, its architecture supports Layer 2 and Layer 3 operations, making it a reliable solution for demanding use cases such as server interconnect, storage area networking, and high-speed aggregation.
EX4300-32F price is $3,469.00, a 73.2% saving from the Juniper list price of $12,945.00. EX4300-32F is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for EX4300-32F for additional pricing. Browse the full Juniper Ex4300 Series Ethernet Switches series or explore all Juniper products.
EX4300-32F Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 90W
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 32 Ports
- Manageable
- Managed
- Ethernet Technology
- 10GbE
- Media Type Supported
- Fiber
- Redundant Power Supply Supported
- No
- Manufacturer Part Number
- EX4300-32F
- Uplink Configuration
- 10G
- IOS
- IP Lite
- POE Support
- Non POE
- SFP Ports
- 32 SFP+ Ports
- Memory
- 512 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Port/Expansion Slot Details
- N/A
- Flash Memory
- 256 MB
- Switching Capacity
- 640 Gbps
- Switching Capacity with Stacking
- 640 Gbps
- Product Name
- Juniper Networks EX4300-32F Ethernet Switch
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 10.8 inches
- Weight
- 7.5 lbs
EX4300-32F Use Case
Data Center Leaf Switch for High-Density Server Connectivity
In a midsize data center, IT deploys the EX4300-32F as a leaf switch to connect 32 rack-mounted servers via 1 GbE SFP and four 10 GbE SFP+ uplinks to a spine fabric. Leveraging Virtual Chassis for unified management and Junos OS automation, the deployment achieves low-latency East-West traffic, scalable server expansion, and 30% lower power per port—ensuring predictable performance and simplified operations at rack scale.
Campus Network Aggregation with Fiber-Only Distribution
A university campus uses the EX4300-32F as its building-level aggregation switch, terminating 1 GbE SFP connections from classroom and lab switches and providing four 10 GbE SFP+ uplinks to the core. With 350 W AC power and redundant Virtual Chassis, the design delivers 10× faster failover, consolidated fiber cabling, and centralized policy enforcement—yielding a 40% reduction in network downtime and seamless bandwidth scaling for digital learning services.
Multi-Tenant Service Provider Edge with Scalable Fiber Demarcation
An edge service provider installs the EX4300-32F in colocation sites to deliver business-grade Ethernet to 32 tenant sites over 1 GbE SFP, with four 10 GbE SFP+ links aggregating to the provider backbone. The switch’s compact 350 W AC design, per-port bandwidth control and Junos automation enable SLA-driven service profiles, rapid on-boarding, and 25% lower OpEx—ensuring secure, high-density fiber demarcation and predictable multi-tenant performance.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 EX4300-32F |  EX4300-48T-DC |  EX4300-48T-DC-TAA |  EX4300-24T-TAA |  EX4300-48P-TAA | |
|---|---|---|---|---|---|
| Depth | 10.8 inches | 11.5 inches | 11.3 inches | 10.7 inches | 17.3 inches |
| Ethernet Technology | 10GbE | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.73 inches | 1.73 inches | 1.73 inches |
| IOS | IP Lite | LAN Base | IP Lite | IP Services | LAN Base |
| 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 | EX4300-32F | EX4300-48T-DC | EX4300-48T-DC-TAA | EX4300-24T-TAA | EX4300-48P-TAA |
| Media Type Supported | Fiber | Twisted Pair / Fiber | Twisted Pair | Twisted Pair / Fiber | Twisted Pair |
| Memory | 512 MB | 256 MB | 512 MB | 512 MB | 256 MB |
| Number of Downlink Ports | 32 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 | Non POE | Non POE | Non POE | Non POE | POE+ |
| Port/Expansion Slot Details | N/A | N/A | 48 x 10/100/1000 copper ports, 4 SFP uplink ports | 24 x 10/100/1000 Ethernet ports and 4 x 1/10G SFP+ uplink ports | N/A |
| Power Consumption | 90W | 30 W | 250W | 46 W | 370 W |
| Power Source | AC Power Supply | DC Power Supply | N/A | AC Power Supply | AC Power Supply |
| Product Name | Juniper Networks EX4300-32F Ethernet Switch | EX4300-48T-DC Ethernet Switch | Juniper Networks EX4300-48T-DC-TAA Ethernet Switch | EX4300-24T-TAA Ethernet Switch | Juniper EX4300-48P-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 | No | No | No |
| SFP Ports | 32 SFP+ Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 640 Gbps | 176 Gbps | 176 Gbps | 128 Gbps | 176 Gbps |
| Switching Capacity with Stacking | 640 Gbps | 352 Gbps | N/A | N/A | 320 Gbps |
| Uplink Configuration | 10G | 1G / 10G | 1G / 10G | 1G / 10G | 1G |
| Weight | 7.5 lbs | 13 lbs | 13 lbs | 7.5 lbs | 12 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches |
Reviews & Ratings
L
Luke Patterson
4
Reliable switching with low latency.
V
Victor Hayes
5
Consistent performance.
D
Daniel Morgan
5
Easy to integrate.
J
James Howard
4
Strong EX platform.
Questions & Answers
What is the EX4300-32F switch?
The Juniper EX4300-32F is a fixed-configuration Ethernet switch offering 32 1000Base-X SFP fiber ports, four 10GBase-X SFP+ uplinks, and a 350W AC power supply for mid-size enterprise and data center deployments.
What port densities does the EX4300-32F provide?
It provides 32 fiber-based 1 Gbps SFP ports and four 10 Gbps SFP+ uplink ports, enabling high-density fiber connectivity in a 1RU form factor.
Are optics included with the EX4300-32F?
No. The EX4300-32F ships without SFP or SFP+ transceivers. Compatible optics must be ordered separately.
Which SFP and SFP+ modules are compatible with EX4300-32F?
This switch supports Juniper-approved 1000Base-X SFP and 10GBase-X SFP+ optics, including SR, LR, ER, and CWDM variants.
How do I install or replace optics on the EX4300-32F?
Insert or remove SFP/SFP+ modules from the front-panel slots while powered on, following Juniper’s hot-plug guidelines to maintain link stability.
Does the EX4300-32F support Virtual Chassis technology?
Yes. It supports up to 10-member Virtual Chassis configurations, allowing unified management and scaling both port count and forwarding capacity.
What is the maximum stacking capacity of EX4300-32F?
You can stack up to 10 EX4300-32F switches into a single Virtual Chassis, delivering up to 3.84 Tbps of aggregate throughput.
What power supply and consumption does the EX4300-32F feature?
It includes a single 350W AC power supply with a typical full-load draw of approximately 120W.
Does the EX4300-32F support Layer 3 routing?
Yes. Running Junos OS, it offers full Layer 2 and Layer 3 capabilities, including OSPF, BGP, RIP, and static routing.
How can I configure VLANs on the EX4300-32F?
Use the Junos CLI or J-Web GUI to create VLAN interfaces, assign ports, and commit changes with a few concise commands.
What management interfaces are available on the EX4300-32F?
It provides a dedicated out-of-band RJ-45 management port, an RJ-45 console port, optional USB-C console, plus SNMP and REST API support.
What is the switching capacity and forwarding rate of EX4300-32F?
The EX4300-32F delivers 1.28 Tbps of switching capacity and up to 960 Mpps packet forwarding performance.
What common use cases does the EX4300-32F serve?
Ideal for top-of-rack data center deployments, campus aggregation, and enterprise wiring closets requiring high-density fiber uplinks and high availability.
Are components hot-swappable on the EX4300-32F?
Yes. Both the AC power supply and SFP/SFP+ modules are hot-swappable to ensure uninterrupted network operation.
What warranty and support options are offered for EX4300-32F?
Juniper provides a limited lifetime hardware warranty, ongoing software updates, and optional service plans including next-business-day advance replacement.
How do I upgrade Junos OS on the EX4300-32F?
Download the desired Junos OS image from the Juniper Support site and install it via the CLI using request system software add followed by request system reboot.
Where can I purchase a genuine EX4300-32F switch?
Authorized Juniper resellers and partners stock the EX4300-32F; you can locate them using the Juniper Networks Partner Locator on the official website.