Brand: Juniper | Category: Network Switches
SKU: JUN-EX4300-48T | Part #: EX4300-48T | MPN: EX4300-48T
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L2/L3 switching with BGP/OSPF routing capabilities — this determines the fabric role the Juniper EX4300-48T will assume in your campus or data centre network. The EX4300-48T is a 1U fixed-configuration switch engineered for enterprises requiring dense 10/100/1000BASE-T Gigabit connectivity paired with high-speed uplink capacity. With 48 copper Gigabit Ethernet ports and four 10GbE SFP+ uplinks plus four 40GbE QSFP+ uplinks, this platform delivers 176 Gbps standalone switching capacity and 130 Mpps forwarding throughput — scaling to 1 Tbps when deployed as a Virtual Chassis of up to 10 switches. Network engineers and IT infrastructure teams adopt the EX4300-48T to consolidate access-layer switching while maintaining non-blocking performance across distribution and core tiers.
Running Junos OS, the switch supports dual-stack IPv4/IPv6 routing with static, RIP, OSPF, IS-IS, BGP, and MPLS protocols. A 16,000-entry MAC address table and support for up to 4,096 VLANs (802.1Q) enable segmentation at enterprise scale. Jumbo frames up to 9,216 bytes accommodate storage and media workflows. Security features include 802.1X port-based NAC, DHCP snooping, dynamic ARP inspection, and IP source guard. The EX4300-48T (part number EX4300-48T) operates with redundant, field-replaceable power supplies and offers both front-to-back (AFO) and back-to-front (AFI) airflow options for flexible deployment in standard and hot-aisle containment environments.
Contact Omnixon Global to request a quotation for the Juniper EX4300-48T and discuss integration with your existing infrastructure.
| Brand | Juniper |
| Category | Network Switches |
| SKU | JUN-EX4300-48T |
| Part Number | EX4300-48T |
| Condition | New |
| Form Factor | 1U |
| Interface | 48× 1GbE + 4× 10G SFP+ uplinks |
| Speed | 10GbE |
| Manufacturer Part Number | EX4300-48T |
| Form Factor | 1U fixed configuration |
| Total Ports | 48 x 10/100/1000BASE-T RJ-45 copper Gigabit Ethernet |
| PoE Support | None |
| 10GbE Uplink Ports | 4 x SFP+ (10GbE) |
| 40GbE Uplink Ports | 4 x QSFP+ (40GbE) |
| Switching Capacity (Standalone) | 176 Gbps |
| Forwarding Throughput (Standalone) | 130 Mpps |
| Virtual Chassis Switching Capacity | 1 Tbps |
| Virtual Chassis Maximum Members | 10 switches |
| MAC Address Table Size | 16,000 entries |
| VLAN Support | Up to 4,096 VLANs (802.1Q) |
| Jumbo Frame Support | Up to 9,216 bytes |
| Layer 3 Routing Protocols | Static routing, RIP, OSPF, IS-IS, BGP, MPLS |
| IPv6 Support | Yes (dual-stack IPv4/IPv6) |
| Access Control | 802.1X port-based NAC, DHCP snooping, dynamic ARP inspection, IP source guard |
| Operating System | Junos OS |
| Power Supply | Redundant power supply support (field-replaceable) |
| Airflow | Front-to-back (AFO) standard; back-to-front (AFI) option available |
| Operating Temperature | 0°C to 45°C |
| Dimensions (W x D x H) | 440 x 490 x 44 mm (1U) |
The Juniper EX4300-48T 48-port Gigabit Non-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.
Key specifications for the Juniper EX4300-48T 48-port Gigabit Non-PoE Switch with 10G Uplinks: form factor 1U Rackmount; interface 48× 1GbE + 4× 10G SFP+ uplinks; 1 year support; new condition. Manufacturer part number EX4300-48T. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
The Juniper EX4300-48T 48-port Gigabit Non-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.