Name: EX4400-48F-AFI Juniper EX4400-48F 48-Port SFP SFP+ SFP28 100GbE Layer 3 Managed Switch
Brand: Juniper Networks
SKU: EX4400-48F-AFI
Price: 11050.95 USD
Availability: InStock
Rating: 4.8 (118 reviews)

Product Overview
The EX4400‑48F‑AFI Juniper EX4400 48 x SFP/SFP+ Fiber Ports Layer 3 Stackable Network Switch delivers robust fiber-based Layer 2/3 switching, Virtual Chassis scalability, and secure, high-throughput connectivity for modern enterprise and campus networks.

General Information
Brand	Juniper Networks
Part Number	EX4400-48F-AFI
Condition	Refurbished

Technical Information
Form Factor	Rack-Mountable
Mount Type	1U Rack
Number of Ports	48-Ports
Port Type	RJ-45, SFP, SFP+
Port Speed	1 GbE SFP; 10 GbE SFP+
UpLink Ports	2 × 100 GbE
Max VLANs Supported	Supports up to 4,096 VLAN IDs
Layer Support	Layer 2, Layer 3

Performance
Jumbo Frame Support	Up To 9216 Bytes

Management and Configuration
Routing Protocols	RIP, OSPF, BGP, IS-IS, VRRP
Remote Protocols	Junos CLI, Juniper Mist AI/Wired Assurance, Junos APIs
Security Features	MACsec AES‑256 (license), ACLs, storm control, RADIUS/TACACS+

Physical Characteristics
Dimensions	44.2 × 442 × 257 mm

Product Description
The EX4400‑48F‑AFI is a high‑performance fixed fiber Layer 3 network switch from Juniper’s EX4400 series, built for enterprise campus and data center aggregation layers requiring dense SFP/SFP+ connectivity and advanced routing support. Key Features 36 × 1 GbE SFP and 12 × 1/10 GbE SFP+ fiber ports 2 × 100 GbE uplinks, convertible for Virtual Chassis stacking Supports Layer 2 and Layer 3 protocols including BGP, OSPF, VXLAN Hot‑swappable fans and dual 550 W power support for redundancy Managed via Junos CLI, Mist AI, and secure remote interfaces Ideal for high‑density fiber access environments, campus core aggregation, or enterprise branches, this switch offers scalability, secure segmentation, and intelligent cloud‑managed operations through Mist AI integration.

Use Cases
The Juniper EX4400-48F-AFI is designed for environments requiring high-density fiber connectivity with advanced Layer 3 capabilities, such as enterprise campuses and service provider access networks. It is well-suited for IT teams managing scalable, secure, and high-throughput fiber-based networks where stacking and redundancy are critical. How It's Used: Deploying in campus aggregation layers to support high-bandwidth data flows between multiple buildings with fiber optic infrastructure. Implementing as a core switch in enterprise data centers requiring robust Layer 3 routing and fiber-based server connectivity. Serving remote or branch office networks that demand resilient, stackable switches with redundancy for uninterrupted operations. Integrating into service provider environments to facilitate high-speed fiber access and secure segmentation at the network edge. Supporting virtualization platforms by providing reliable 10GbE connectivity for storage clusters and hyperconverged infrastructure nodes. This switch enhances operational efficiency by enabling flexible Virtual Chassis stacking and redundant power supplies, allowing seamless scalability and high availability in fiber-centric network deployments. Its Layer 3 features and fiber port density support complex routing and traffic segregation in demanding IT infrastructures.