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The Juniper QFX5120-48T-AFO is a high-density, 1U top-of-rack switch designed for 10GbE copper server access with flexible 40/100GbE uplinks. Featuring 48 dual-speed 1GbE/10GbE RJ-45 ports and up to six QSFP uplink ports, the QFX5120-48T-AFO delivers non-blocking performance ideal for modern EVPN-VXLAN fabrics and scalable enterprise data center deployments.
This AFO variant provides port-side exhaust airflow (front-to-back), making it a strong fit for hot-aisle containment and traditional data center cooling designs. BrightStar Systems supplies carefully tested, used and refurbished QFX5120-48T-AFO switches backed by our 1-Year In-House Warranty.
The QFX5120-48T-AFO is part of the QFX5120 series, offering flexible deployment options as a leaf switch in EVPN-VXLAN fabrics or as a high-density aggregation device. Its copper 10GbE access ports make it ideal for environments transitioning from 1GbE to 10GbE while preserving existing copper cabling infrastructure.
The QFX5120-48T-AFO combines efficient copper-based 10GbE access with flexible high-speed uplinks, making it well-suited for modern and transitional data center designs. Its AFO airflow aligns with front-to-back cooling requirements, and its EVPN-VXLAN capabilities allow scalable growth alongside newer QFX5120 and QFX5100 models.
Helpful reference material for comparing QFX5120 models:
Q1: What is the difference between AFO and AFI models?
A1: The QFX5120-48T-AFO uses Airflow Out (AFO) for cooling, meaning air is expelled from the front of the device. AFI models have Airflow In, which draws air from the front.
Q2: Can the QFX5120-48T-AFO be used in large-scale data centers?
A2: Yes, it is ideal for large-scale data centers thanks to its high port density, scalable design, and advanced network management capabilities.
Q3: What is the power redundancy feature of this switch?
A3: The switch comes with dual hot-swappable power supplies, ensuring continuous operation even in case of a power module failure.
Q4: Does the switch support stacking?
A4: Yes, it supports Juniper’s Virtual Chassis technology, allowing you to stack multiple switches for simplified and centralized management.
Q5: Is the switch suitable for high-performance, low-latency applications?
A5: Absolutely. The QFX5120-48T-AFO is engineered for ultra-low latency, making it perfect for real-time, high-performance applications like financial trading and cloud services.
