Name: EX3400-48P-2PS Juniper 48 x 1GbE RJ-45 PoE+ Ports 4x SFP+/SFP Uplinks Redundant Power Supply Stackable Managed 1U Rackmount Layer 3 Switch
Brand: Juniper Networks
SKU: EX3400-48P-2PS
Price: 7055.00 USD
Availability: InStock
Rating: 4.8 (125 reviews)

Product Overview
The EX3400‑48P‑2PS Juniper EX3400 fixed 1U Layer 3 switch delivers 48 PoE+ copper ports, quad 1/10 GbE and dual 40 GbE uplinks, Virtual Chassis stacking, and robust L2/L3 features—all in a rack‑mountable chassis suited for campus edge and branch aggregation.

General Information
Brand	Juniper Networks
Part Number	EX3400-48P-2PS
Condition	Refurbished

Technical Information
Switch Type	Stackable Switch
Form Factor	Rack-Mountable
Mount Type	1U Rack
Number of Ports	48-Ports
Port Type	RJ-45, SFP, SFP+, QSFP / QSFP+
Port Speed	10/100/1000 Mbps
UpLink Ports	4 × 1/10 GbE SFP/SFP+ + 2 × 40 GbE QSFP+
POE Support	PoE+
Switching Capacity	336 Gbps
Switch Forwarding Rate	250 Mpps
Max VLANs Supported	4096 VLANs
Layer Support	Layer 2, Layer 3
Connector Type	RJ‑45, SFP/SFP+, QSFP+, mini-USB console

Performance
Jumbo Frame Support	Up To 9216 Bytes
MAC Address Table Size	32,000 Entries

Management and Configuration
Routing Protocols	Static, RIP, OSPF, VRRP
Remote Protocols	Junos OS CLI, Junos Space, Mist Cloud/ZTP, SNMP, sFlow, REST API
Security Features	DHCP snooping, DAI, MAC limiting, MACsec (802.1ae), ACLs, DoS protection

Physical Characteristics
Dimensions	1.7 × 17.4 × 13.8 in
Weight	14.00

Product Description
The EX3400‑48P‑2PS is a fixed, stackable Layer 3 switch in a 1U rack‑mount chassis, offering high‑density PoE+ and flexible uplinks for enterprise edge and distribution layers. Key Features All 48 RJ‑45 ports deliver 802.3af/at PoE+ (up to 30 W each) High‑speed uplinks: 4 × 1/10 GbE + 2 × 40 GbE Scalable Virtual Chassis stacking for simplified management Layer 2/3 feature set with OSPF, VRRP, MACsec, ACLs, DHCP snooping Redundant hot‑swappable PSUs and fans ensure uptime This switch fits perfectly in campus or branch environments that need power‑rich edge access and strong uplink aggregation. It’s ideal for growing VLAN segmentation, wireless access distribution, and resilient enterprise deployments.

Use Cases
The EX3400-48P-2PS Juniper switch is designed for network environments that demand high-density PoE+ connectivity combined with advanced Layer 3 features. It is particularly suited for campus edge deployments, branch offices, and mid-sized enterprise networks where scalability and robust uplink options are essential for handling growing data and device requirements. How It's Used: Enabling power and data delivery to VoIP phones, wireless access points, and security cameras in campus edge networks for IT teams managing heterogeneous devices. Aggregating multiple branch office switches through Virtual Chassis stacking to streamline network management and scalability in distributed enterprise sites. Providing high-speed uplinks in data center access layers to support virtualization workloads and storage traffic consolidation for SMBs. Supporting segmented VLAN deployments for secure multi-tenant environments in educational institutions and healthcare facilities. Deploying in network closets within commercial buildings to deliver PoE+ for IoT devices while simplifying rack space through a 1U form factor. This switch enhances operational efficiency by consolidating power and data over a single infrastructure, while its stacking capabilities and multi-gigabit uplinks allow for scalable growth. Its robust Layer 3 performance ensures consistent handling of routing and switching tasks critical to maintaining network performance in edge and aggregation scenarios.