Name: QFX5120-48Y-AFO2 Juniper 48 SFP28 25GBase-X 8 QSFP28 Data Center Switch
Brand: Juniper Networks
SKU: QFX5120-48Y-AFO2
Price: 13695.20 USD
Availability: InStock
Rating: 4.8 (118 reviews)

Product Overview
The QFX5120-48Y-AFO2 switch delivers a balanced combination of 25G and 100G connectivity options, fitting well within data center topologies focused on low latency and high throughput. It handles demanding traffic patterns efficiently while maintaining a compact, fanless form factor suitable for dense rack installations.

General Information
Brand	Juniper Networks
Condition	Refurbished

Technical Information
Switch Type	Layer 2, Layer 3, Managed Switch, Stackable Switch
Form Factor	Rack-Mountable
Mount Type	1U Rack
Switch Ports	48
Number of Ports	48-Ports
Port Type	25G SFP28, 100G QSFP28, USB Console, Serial Console (RJ-45)
Port Speed	25G
UpLink Ports	8
POE Support	No
Switching Capacity	4 Tbps
VLAN Support	Yes
Max VLANs Supported	1-4094
Stackable	Yes
Layer Support	Layer 3
Connector Type	SFP28,QSFP28,USB Console,Serial Console (RJ-45)

Performance
Jumbo Frame Support	Up To 9216 Bytes

Management and Configuration
Routing Protocols	Static, RIP, OSPF, OSPFv3, BGP, VRRP, PIM-SM, IGMP, MLD
Remote Protocols	Yes
Management Interfaces	Console (RJ-45),USB Console,1x 10/100/1000Base-T Management
Security Features	802.1X,RADIUS,TACACS+,ACLs,DHCP Snooping,IP Source Guard,Storm Control,Unicast RPF
Management Type	CLI (Junos),Web (J-Web),SNMP,NETCONF
Security	802.1X,RADIUS,TACACS+
Remote Management Protocol	SSH,HTTPS,HTTP,SNMP,NETCONF

Physical Characteristics
Weight	3.00
Operating Temperature	0°C to 40°C (32°F to 104°F)

Miscellaneous
Eco Friendly	Yes
Assembly Required	No
Compliance Standards	RoHS, CE, FCC, UL

Product Description
The QFX5120-48Y-AFO2 is a high-capacity network switch designed to deliver scalable and flexible connectivity in modern data centers and enterprise networks. It provides a robust platform for high-speed data transmission with its mix of 25G SFP28 and 100G QSFP28 ports. Often found within top-of-rack or spine-leaf architectures, the switch is built for IT professionals managing demanding workloads that require consistent low latency and high throughput. Networking teams benefit from its efficient design that supports both standard and breakout port configurations. Key Features Offers 48 SFP28 ports delivering 25GbE speeds suitable for server and storage connections Includes 8 QSFP28 ports capable of 100GbE or 4x 25GbE breakout for uplink flexibility Engineered for low latency switching to support performance-critical environments Fanless design minimizes noise and increases reliability in contained rack spaces Supports advanced Layer 2 and Layer 3 protocols for versatile network deployments This switch serves as a reliable foundation for network infrastructure, providing consistent performance and adaptability as capacity demands grow. Its design balances power efficiency with comprehensive feature support, making it a practical choice for evolving data center needs.

Use Cases
This switch is typically deployed in environments requiring high port density and versatile uplink options, such as data centers and enterprise campus networks. Networking professionals managing virtualization or large-scale storage clusters find it especially valuable for its performance and flexibility. How It's Used: Top-of-rack deployment connecting servers and storage in hyperscale data centers Leaf switch within spine-leaf architectures for scalable enterprise networks Aggregation point for 25GbE and 100GbE links in cloud service provider environments Network backbone component in high-performance computing clusters Flexible breakout configurations for optimized bandwidth allocation and network segmentation By supporting diverse network speeds and protocols, the QFX5120-48Y-AFO2 helps sustain operational efficiency while enabling future scalability. Its reliability and adaptable design assist IT teams in maintaining consistent, high-performance connectivity across varied infrastructure setups.