Name: QFX5120-48T-DC-AFI Juniper 48x RJ45 10GbE 6x QSFP28 Data Center Switch
Brand: Juniper Networks
SKU: QFX5120-48T-DC-AFI
Price: 3043.50 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The QFX5120-48T-DC-AFI combines high-density 10GbE copper ports with flexible QSFP28 uplinks, fitting well within modern data center and enterprise network architectures. It balances port variety with efficient power usage to maintain steady connectivity across multiple network layers.

General Information
Brand	Juniper Networks
Condition	Refurbished

Technical Information
Switch Type	Layer 3, Managed Switch, Stackable Switch
Form Factor	Rack-Mountable
Mount Type	1U Rack
Switch Ports	48
Number of Ports	48-Ports
Port Type	10GBase-T, 40G QSFP+, 100G QSFP28, USB Console, Serial Console (RJ-45)
Port Speed	10Gbps,40Gbps,100Gbps
UpLink Ports	6
POE Support	No
VLAN Support	Yes
Max VLANs Supported	4096
Stackable	Yes
Layer Support	Layer 3
Connector Type	RJ-45,QSFP28,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
Remote Protocols	Yes
Management Interfaces	Out-of-band management (RJ-45), Console (RJ-45), USB, SNMP
Security Features	802.1X,ACLs,MAC limiting/port security,DHCP snooping,Storm control,SSH
Management Type	Junos OS,CLI,SNMP,NETCONF,REST API
Remote Management Protocol	SSH,SNMP,NETCONF,REST,Telnet

Power & Cooling
Fans	Hot-swappable redundant fans (front-to-back airflow)
Power	-48 V DC (redundant)
Power Supply	Dual -48V DC (redundant)

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	WEEE, RoHS, CE, FCC, cULus
Compliant Standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1X, IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3ae, IEEE 802.3az

Product Description
The QFX5120-48T-DC-AFI is a robust switch built to provide reliable, high-performance networking for data centers and enterprise infrastructures. It commonly appears in environments where a mix of high-speed copper and fiber connections is needed to support growing bandwidth demands. Engineered for network architects and IT professionals who require scalable and flexible switching solutions, it is often found in aggregation layers or top-of-rack deployments. By combining 48 10GbE RJ45 ports and 6 QSFP28 slots, it offers a versatile platform for various network topologies. Key Features Offers dense 10GbE copper connectivity with 48 RJ45 ports Includes 6 QSFP28 slots capable of 40GbE or 100GbE speeds Supports dual power supplies with DC input for power redundancy Runs Juniper’s Junos OS for advanced network management Compact form factor suited for rack deployments This switch delivers consistent performance and dependable network throughput, crucial for managing complex traffic flows. Its design facilitates straightforward integration into existing infrastructures while maintaining operational stability and scalability.

Use Cases
This switch is typically deployed in data centers and enterprise environments requiring a blend of 10GbE access and high-speed uplinks. It suits organizations managing large workloads where bandwidth and port scalability are critical. How It's Used: Top-of-rack switch in data centers connecting servers via 10GbE copper ports Aggregation switch linking multiple access switches through QSFP28 uplinks Supporting virtualized environments with high throughput demands Deployments in edge computing facilities requiring compact, power-efficient switching Used in enterprise core networks to balance copper and fiber connectivity needs By providing reliable connectivity with flexible port configurations, this switch enhances network efficiency and scalability. It supports seamless data flow across infrastructure layers while maintaining energy-conscious operation.