Name: QFX5120-48T-AFI Juniper QFX5120 Series QFX5120-48T 48 x 10GBase-T RJ-45 + 6 x QSFP28 Ports Layer 3 Managed 1U Rack-Mountable Back-To-Front Airflow Network Switch
Brand: Juniper Networks
SKU: QFX5120-48T-AFI
Price: 13600.00 USD
Availability: InStock
Rating: 4.9 (108 reviews)

Product Overview
The Juniper QFX5120-48T-AFI provides robust 10G copper connectivity combined with high-speed QSFP28 uplink ports, making it a versatile option in data center networks. Its Layer 3 capabilities support complex routing needs, and the 1U, back-to-front airflow design ensures it fits well in rack environments where space and cooling matter.

General Information
Brand	Juniper Networks
Part Number	QFX5120-48T-AFI
Condition	Refurbished

Technical Information
Switch Ports	48 x 10GBase-T RJ-45, 6 x QSFP28
Number of Ports	48-Ports
Port Speed	1 Gbps, 10 Gbps, 40 Gbps, 100 Gbps
Switching Capacity	2.16 Tbps
Switch Forwarding Rate	4218.75 Mpps
DRAM	16 GB
Flash Memory	16 GB
Max VLANs Supported	1-4094
Connector Type	RJ-45, QSFP28

Performance
Latency	<2 µs (hardware forwarding, typical)
Jumbo Frame Support	Up To 9216 Bytes
MAC Address Table Size	160K

Management and Configuration
Management Type	Junos OS, CLI, Web UI, Junos Space, NETCONF, REST, SNMP
Security	MACsec, ACLs, 802.1X, DHCP snooping, BPDU protection, storm control
Remote Management Protocol	SSH, Telnet, SNMP, NETCONF, RESTCONF
Routing Protocol	BGP, OSPF, OSPFv3, IS-IS, RIP, Static Routing, VRF

Power & Cooling
Fans	Hot-swappable redundant fans (back-to-front airflow)
Power	Up to 650 W (system power - depending on configuration)
Power Supply	AC power supply (field-replaceable / redundant options available)

Physical Characteristics
Dimensions	1.72 x 17.5 x 19.2 in (H x W x D) (1U)
Weight	3.00
Operating Temperature	0°C to 40°C (32°F to 104°F)

Miscellaneous
Compliance Standards	WEEE, RoHS
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3ae, IEEE 802.3ad, IEEE 802.3z, IEEE 802.3x, IEEE 802.1Q, IEEE 802.1p, IEEE 802.1D, IEEE 802.1s, IEEE 802.1w, IEEE 802.1X

Product Description
The Juniper QFX5120-48T-AFI is a high-performance network switch built for data centers and enterprise environments that require reliable 10G connectivity alongside scalable uplinks. It often appears in top-of-rack deployments where space and airflow management are critical. Network engineers and IT teams use this switch to handle demanding applications with low latency and flexible Layer 3 routing. Key Features Offers 48 RJ-45 ports for seamless integration with existing copper cabling infrastructure Equipped with 6 QSFP28 ports enabling fast uplinks and future-proofing Supports advanced Layer 3 protocols for efficient network traffic management Designed for back-to-front airflow to optimize cooling in dense racks Compact 1U form factor fits easily into standard server racks This switch is typically installed in data center racks where both performance and cooling are priorities. Its mix of copper and fiber connectivity suits environments transitioning between legacy and modern network hardware. The QFX5120-48T-AFI helps maintain smooth data flow and network agility in busy infrastructure settings.

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