EX4300 48T 48-Port Layer 3 Gigabit Switch with 10G Uplinksoriginal new in stock
Product Overview
The EX4300-48T is a 48-port Layer 3 managed Gigabit Ethernet switch from Juniper Networks, built to deliver high-performance access and aggregation switching for enterprise campus, branch, and data center deployments. It supports Virtual Chassis technology, allowing up to 10 switches to operate as a single logical device, and provides 4 x 10GbE SFP+ uplinks along with 2 x 40GbE QSFP+ ports for stacking or uplinks. Powered by Junos OS, the EX4300-48T delivers advanced Layer 2 and Layer 3 capabilities, security features, and automation support in a compact 1U form factor.
Product Details
| Attribute | Description |
| Product Name | EX4300-48T |
| Brand | Juniper Networks |
| Downlink Ports | 48 x 10/100/1000BASE-T (non-PoE) |
| Uplink Ports | 4 x 10G SFP/SFP+ |
| Virtual Chassis Ports | 2 x 40G QSFP+ (for stacking or uplink) |
| Switching Capacity | 496 Gbps |
| Forwarding Rate | 369 Mpps |
| Layer Support | Layer 2 and Layer 3 |
| Virtual Chassis | Supported, up to 10 members |
| Power Supply | Redundant, hot-swappable AC or DC |
| Operating System | Junos OS |
| Form Factor | 1U rack-mountable |
Key Features
48 non-PoE 1G access ports ideal for high-density campus edge
4 x 10G uplinks for high-speed distribution layer connectivity
2 x 40G QSFP+ ports for Virtual Chassis stacking or uplink expansion
Supports advanced Layer 3 protocols: OSPF, BGP, IS-IS, PIM
Highly available with field-replaceable redundant power and fans
Integrated MACsec, storm control, DHCP snooping, and dynamic ARP inspection
Powered by Junos OS with automation, telemetry, and programmability support
Designed for secure, scalable, and efficient enterprise networking
Technical Specifications
| Specification | Value |
| Access Ports | 48 x 1G RJ-45 |
| Uplink Ports | 4 x 10G SFP+ |
| Stacking Ports | 2 x 40G QSFP+ |
| Switching Capacity | 496 Gbps |
| Forwarding Rate | 369 Mpps |
| Layer Support | Layer 2 and Layer 3 |
| Virtual Chassis | Yes (up to 10 units) |
| Power Supply | Redundant, hot-swappable (AC or DC) |
| Operating System | Junos OS |
| Operating Temperature | 0°C to 45°C |
| Form Factor | 1U rack-mountable |
Similar Models Comparison
| Model | Access Ports | Uplink Ports | PoE Support | Stacking Ports | Virtual Chassis | Use Case |
| EX4300-48T | 48 x 1G RJ-45 | 4 x 10G SFP+ | No | 2 x 40G QSFP+ | Yes (up to 10) | High-density enterprise access |
| EX4300-48P | 48 x 1G PoE+ | 4 x 10G SFP+ | Yes | 2 x 40G QSFP+ | Yes | IP phones, APs, PoE devices |
| EX4300-24T | 24 x 1G RJ-45 | 4 x 10G SFP+ | No | 2 x 40G QSFP+ | Yes | Medium-density campus access |
| EX3400-48T | 48 x 1G RJ-45 | 4 x 10G SFP+ | No | VC via uplinks | Yes (up to 4) | Budget-friendly Layer 3 access |
