Name: B1-Q5120-48YO-A-A5 Juniper 48-Port 10/25GbE SFP28 Airflow-Out Switch
Brand: Juniper
SKU: B1-Q5120-48YO-A-A5
Price: 1.00 USD
Availability: InStock
Rating: 4.8 (118 reviews)

Product Overview
The B1-Q5120-48YO-A-A5 Juniper QFX5120-48Y Airflow-Out Redundant Switch is designed to provide reliable 10/25GbE connectivity with a high port density suitable for modern data centers. It fits well in environments requiring airflow-out cooling and offers redundancy features that support continuous network availability without compromising performance.

General Information
Brand	Juniper
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	10G SFP+, 25G SFP28, 100G QSFP28, SFP, USB Console, Serial Console (RJ-45)
Port Speed	1GbE,10GbE,25GbE,100GbE
UpLink Ports	6
POE Support	No
Switching Capacity	3600 Gbps
VLAN Support	Yes
Max VLANs Supported	4094
Stackable	Yes
Layer Support	Layer 2, Layer 3
Connector Type	SFP28,QSFP28,RJ-45,USB Console,Serial Console (RJ-45)

Performance
Jumbo Frame Support	Up To 9216 Bytes

Management and Configuration
Routing Protocols	Static, RIP, RIPng, OSPF, OSPFv3, BGP, IS-IS, VRRP, PIM-SM, IGMP, Policy-Based Routing (PBR), Route Maps
Remote Protocols	Yes
Management Interfaces	RJ-45 Console, USB Console, 1x 10/100/1000 Management Port, Out-of-band management
Security Features	802.1X,ACLs,RADIUS/TACACS+,DHCP Snooping,ARP Inspection,Port Security,Storm Control
Management Type	Junos OS, CLI, Junos Space, SNMP, NETCONF
Remote Management Protocol	SSH,HTTPS,SNMP,NETCONF,RESTCONF

Power & Cooling
Fans	Front-to-back hot-swappable fans (airflow-out)
Power	AC 100-240V, 750W (per power supply)
Power Supply	2 x 750W AC (redundant, hot-swappable)

Physical Characteristics
Weight	3.00
Operating Temperature	0°C to 40°C

Miscellaneous
Eco Friendly	Yes
Assembly Required	No
Compliance Standards	RoHS, CE, FCC, UL
Compliant Standards	IEEE 802.1Q,IEEE 802.3,IEEE 802.1p,IEEE 802.1X,IEEE 802.3ad (LAG)

Product Description
The B1-Q5120-48YO-A-A5 is a high-performance network switch built to support demanding data center environments. It provides 48 flexible 10/25GbE ports along with high-speed SFP28 uplinks, enabling scalable and efficient network connectivity. This switch is commonly found in enterprise and cloud data centers, where airflow-out cooling helps maintain optimal thermal performance. Network engineers and IT professionals benefit from its redundant power supply design and robust hardware, ensuring continuous operation and minimizing downtime. Its compact form factor and advanced features make it suitable for top-of-rack deployments, bridging server and network infrastructure seamlessly. Key Features Provides 48 10/25GbE ports with flexible SFP28 module support Features airflow-out design to complement data center cooling strategies Includes dual redundant power supplies for fault tolerance Delivers low latency and high throughput for demanding workloads Supports advanced Layer 2 and Layer 3 networking protocols This switch plays a vital role in maintaining efficient and resilient network operations. Its reliability and performance make it a solid choice for core data center switching needs, helping to ensure stable connectivity and smooth data flow.

Use Cases
This switch is typically deployed in data centers and enterprise networks where high throughput and redundancy are critical. It suits environments requiring top-of-rack switches that can efficiently manage traffic between servers and core network layers, benefiting operators focused on reliability and performance. How It's Used: Top-of-rack switch in large-scale data centers handling virtualization traffic Aggregation point for high-speed 25GbE connections in enterprise IT infrastructures Core switch in cloud service provider networks requiring airflow-out cooling Supports storage clusters with low latency and consistent throughput Redundant power configuration for environments demanding high availability By integrating this switch into network architectures, organizations can improve operational efficiency and maintain scalable network performance. Its design and features help ensure the infrastructure remains stable and responsive under heavy workloads.