Juniper EX3300-48P 48-Port PoE+ GbE Layer 2/3 Access Switch

The Juniper EX3300-48P is a 48-port 10/100/1000BASE-T PoE+ Layer 2/3 managed access switch with 4 x SFP+ uplink ports — delivering enterprise GbE PoE+ access connectivity for IP phones, wireless APs, and PoE devices in campus wiring closet deployments with Junos OS management and Virtual Chassis stacking.

Key Features

• 48 x 10/100/1000BASE-T PoE+ ports (IEEE 802.3at, up to 30W per port)
• 4 x SFP/SFP+ uplink ports for 1GbE or 10GbE distribution connectivity
• Virtual Chassis support for stacking up to 10 EX3300 switches
• Full Junos OS L2/L3 switching and routing
• 1U rack-mountable form factor for wiring closet deployment

Product Specifications

• Part Number: EX3300-48P
• Manufacturer: Juniper Networks
• Access Ports: 48 x 10/100/1000BASE-T PoE+
• Uplink Ports: 4 x SFP/SFP+ (1GbE/10GbE)
• Switching Capacity: 128 Gbps
• Forwarding Rate: 95.2 Mpps
• Form Factor: 1U Rack-mountable

Switch & Port Specifications

• PoE Budget: Up to 750W total PoE
• PoE Standard: IEEE 802.3at (PoE+, up to 30W per port)
• MAC Address Table: 16,000 entries
• VLAN Support: 4,094 VLANs
• Stacking: Virtual Chassis via SFP+ ports (up to 10 EX3300 switches)
• Jumbo Frames: 9,216 bytes

Network & Protocol Specifications

• Routing: OSPFv2/v3, RIP v1/v2, VRRP, static routing
• Multicast: IGMP v1/v2/v3 snooping, PIM SM/SSM
• Security: 802.1X, MAC RADIUS, ACLs, DHCP snooping, DAI
• QoS: 8 queues per port, DSCP, 802.1p
• Management: Junos OS CLI, NETCONF, SNMP v1/v2c/v3

Use Cases

• Campus wiring closet PoE+ access for IP phones, wireless APs, and IP cameras
• Enterprise branch office GbE PoE+ access with Junos OS management
• Virtual Chassis stacking up to 10 EX3300-48P for unified PoE access management
• Legacy EX3300 spare or replacement units for existing Juniper wiring closet deployments

Compatibility

• Stacks with other EX3300 models via Virtual Chassis (up to 10 members)
• Compatible with standard SFP/SFP+ uplink transceivers and DAC cables
• Junos OS management consistent with EX2300, EX4300, and EX4400 series switches
• Note: EX3300 is an end-of-sale platform — consider EX3400 or EX4100 for new deployments

Frequently Asked Questions

Is the EX3300-48P still supported by Juniper?

The EX3300 series has reached end-of-sale. Juniper continues to provide software support for existing deployments per the published support timeline. For new deployments, the EX3400 or EX4100 series are the recommended current-generation replacements with enhanced features and longer support lifecycles.

What is the total PoE budget on the EX3300-48P?

The EX3300-48P supports up to 750W total PoE budget. With all 48 ports active at full 30W PoE+ load (1,440W theoretical maximum), the 750W budget limits simultaneous full-power port usage — plan your PoE device mix accordingly using Juniper's PoE budget calculator.

Can EX3300-48P be stacked with EX3400 switches?

No — EX3300 and EX3400 use different Virtual Chassis stacking protocols and cannot be mixed in the same Virtual Chassis stack. EX3300 switches can only stack with other EX3300 models.

The Juniper EX3300-48P delivers 48-port PoE+ GbE access connectivity with 10G SFP+ uplinks and Virtual Chassis stacking in a 1U form factor — providing enterprise wiring closet PoE access with Junos OS management for existing EX3300 deployments requiring spare units or incremental capacity expansion.