Juniper QFX5120-48YM-AFI Switches Overview
Juniper QFX5120-48YM-AFI Switches is a genuine data-center switching fabric product from Juniper, a vendor known for scalable, high-performance networking platforms from the campus edge to the core. Belonging to the Juniper family, the Juniper QFX5120-48YM-AFI unit is built to the original factory specification, so it integrates with existing Juniper deployments predictably and behaves exactly as the platform documentation describes. In the network, it is built for high-density data-center and cloud environments, where low latency, high availability and consistent forwarding matter most.
From a specification standpoint, it offers 48 ports for client, server or uplink connectivity. These are the original factory figures for this model, giving administrators a clear picture of what the unit can deliver before it enters service. Standard mounting, cabling and management practices apply, so deployment follows the same procedures as other Juniper hardware already running in the environment.
Typical deployments include access-layer deployments for user, phone and AP connectivity, distribution and core aggregation in campus networks, and top-of-rack and end-of-row switching in data centers. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “QFX5120, MACsec AES-256, 48x25G+8x100G 1U AC PSU side intake and port side exhaust”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the Juniper QFX5120-48YM-AFI. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Enterprise Campus
High-density ports power users, phones and APs at the access layer.
Branch Office
Stackable units simplify branch deployment and management.
Wireless & IoT
PoE budget supports dense wireless and IoT endpoints.
Buying a Pre-Owned Juniper QFX5120-48YM-AFI
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
Juniper QFX5120-48YM-AFI Specifications | |
| Brand | Juniper |
| Model | QFX5120-48YM-AFI |
| Type | Switch |
| Form Factor | 1U |
| Ports | 48 x 25GbE + 8 x 100GbE |
| Port Configuration | 48x25G SFP28 + 8x100G QSFP28 |
| MACsec Support | AES-256 |
| Power Supply Unit (PSU) | AC, Side Intake |
| Cooling | Port Side Exhaust |
| Enclosure Type | Metal |
| Operating Temperature | 0��C to 40��C |
| Storage Temperature | -20��C to 70��C |
| Operating Humidity | 10% to 85% non-condensing |
| Storage Humidity | 5% to 95% non-condensing |
| Networking Standards | IEEE 802.3ae, IEEE 802.3ba, IEEE 802.1ae (MACsec) |
| Management | CLI, Junos OS, Web Interface, SNMP |
| Security Features | AES-256 MACsec encryption, RADIUS, TACACS+, SSH, SNMPv3 |
| Quality of Service (QoS) | Layer 2 and Layer 3 QoS |
| IPv6 Features | IPv6 host, IPv6 routing |
| Virtualization | Virtual Chassis, VXLAN |
| Energy Efficiency | Energy Efficient Ethernet (EEE) |
Juniper QFX5120-48YM-AFI - Deployment Notes
This Juniper QFX5120-48YM-AFI switch is suited to wiring-closet, distribution, or core roles depending on the port density and uplink options of the specific model. The port configuration is a key consideration when planning power budgets for attached devices such as IP phones and access points.
For a refresh or expansion, confirm the IOS/NX-OS software release supported by this specific SKU, the fan and power requirements, and the uplink modules that match your existing infrastructure. Our team can verify revision levels and software compatibility before you order.
Every unit at LinkNewNet is inspected and tested before dispatch, and this Juniper QFX5120-48YM-AFI variant is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Volume requirements can be staged with configuration checks.
