Juniper EX4300-48P 48-port Gigabit PoE+ Switch with 10G Uplinks
Brand: Juniper | Category: Network Switches
SKU: JUN-EX4300-48P | Part #: EX4300-48P | MPN: EX4300-48P
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About the Juniper EX4300-48P 48-port Gigabit PoE+ Switch with 10G Uplinks
The Juniper EX4300-48P delivers a total PoE power budget of 750W, with each of its 48 Gigabit access ports supporting a maximum of 30W under IEEE 802.3at (PoE+) and IEEE 802.3af (PoE) standards. This managed Layer 2/Layer 3 fixed-configuration access switch combines 48 x 10/100/1000BASE-T ports with 4 x 10GbE SFP+ uplink ports and 4 x 40GbE QSFP+ uplink ports (supporting 4x10GbE breakout), delivering a switching capacity of 176 Gbps and forwarding throughput of 130 Mpps. Redundant field-replaceable AC power supplies and redundant fan trays ensure high availability, while Virtual Chassis support for up to 10 members—using dedicated VC ports plus uplink-based VC—enables seamless system scaling across enterprise deployments.
Network engineers and IT procurement teams select the EX4300-48P for campus access layer deployments where powered device density and uplink performance are critical. The switch runs Juniper Junos and supports comprehensive Layer 3 routing protocols including static routing, RIP, OSPF, BGP, and IS-IS, alongside a 32,000-entry MAC address table and up to 4,094 VLANs per IEEE 802.1Q. Security-conscious organizations benefit from MACsec (IEEE 802.1AE) on uplink ports, 802.1X port-based authentication, DHCP snooping, Dynamic ARP Inspection (DAI), and IP source guard. With 8 hardware QoS queues per port, the EX4300-48P ensures predictable traffic management across mixed workloads.
Omnixon Global stocks the Juniper EX4300-48P and supports enterprise procurement workflows across the UAE and wider region. To confirm current availability, obtain competitive pricing, or discuss integration with your existing Juniper infrastructure, please submit a Request for Quotation through Omnixon Global today.
Technical Specifications
| Brand | Juniper |
| Category | Network Switches |
| SKU | JUN-EX4300-48P |
| Part Number | EX4300-48P |
| Condition | New |
| Form Factor | 1U |
| Interface | 48× 1GbE PoE+ + 4× 10G SFP+ |
| Speed | 10GbE |
| Manufacturer Part Number | EX4300-48P |
| Switch Type | Managed Layer 2/Layer 3 fixed-configuration access switch |
| Total Access Ports | 48 x 10/100/1000BASE-T (RJ-45) |
| PoE Standard | IEEE 802.3at (PoE+), IEEE 802.3af (PoE) |
| PoE Power Per Port (Maximum) | 30W |
| Total PoE Power Budget | 750W |
| Built-in 10GbE SFP+ Uplink Ports | 4 x 10GbE SFP+ |
| 40GbE QSFP+ Uplink Ports | 4 x 40GbE QSFP+ (supports 4x10GbE breakout) |
| Virtual Chassis Support | Yes — up to 10 members, dedicated VC ports plus uplink-based VC |
| Switching Capacity | 176 Gbps |
| Forwarding Throughput | 130 Mpps |
| Operating System | Juniper Junos |
| Layer 3 Routing Protocols | Static routing, RIP, OSPF, BGP, IS-IS |
| MAC Address Table Size | 32,000 entries |
| VLAN Support | IEEE 802.1Q, up to 4,094 VLANs |
| Hardware QoS Queues | 8 queues per port |
| Security Features | MACsec (IEEE 802.1AE) on uplink ports, 802.1X port-based authentication, DHCP snooping, Dynamic ARP Inspection (DAI), IP source guard |
| Power Supply | Redundant field-replaceable AC power supplies supported |
| Fans | Field-replaceable redundant fan trays |
| Zero-Touch Provisioning (ZTP) | Supported |
| Management | Junos CLI, NETCONF, SNMP v1/v2c/v3, Juniper Junos Space Network Director |
| Form Factor | 1U rack-mountable |
Frequently Asked Questions about Juniper EX4300-48P 48-port Gigabit PoE+ Switch with 10G Uplinks
What does the Juniper EX4300-48P 48-port Gigabit PoE+ Switch with 10G Uplinks do?
The Juniper EX4300-48P 48-port Gigabit PoE+ Switch with 10G Uplinks is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
What are the headline specs of the Juniper EX4300-48P 48-port Gigabit PoE+ Switch with 10G Uplinks?
Key specifications for the Juniper EX4300-48P 48-port Gigabit PoE+ Switch with 10G Uplinks: form factor 1U Rackmount; interface 48× 1GbE PoE+ + 4× 10G SFP+; 1 year support; new condition. Manufacturer part number EX4300-48P. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the Juniper EX4300-48P 48-port Gigabit PoE+ Switch with 10G Uplinks compatible with my infrastructure?
The Juniper EX4300-48P 48-port Gigabit PoE+ Switch with 10G Uplinks interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.