Juniper QFX5120-48YM-AFO 48-Port Ethernet Switch

MFR# QFX5120-48YM-AFO
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MSRP $44,273.00 Save $12,630.84
$31,642.16
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Brand: Juniper
Product Type: Ethernet Switch
Main Port Count: 48 Ports
Main Port Type: SFP28
Main Port Speed: 1GbE, 10GbE, 25GbE

Juniper QFX5120-48YM-AFO 48-Port Ethernet Switch, 48x1GbE/10GbE/25GbE SFP28 Main Ports, 8x40GbE/100GbE QSFP28 Network Ports, Junos OS

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Overview

The Juniper QFX5120-48YM-AFO is a 48-port data center and distribution switch.

Use Cases

  • Data center top-of-rack connectivity
  • Campus distribution networks

Ports & Switching

  • 48x1G/10G/25G SFP28 network ports
  • 8x40G/100G QSFP28 uplink-capable ports

Hardware & Platform

  • 17.36 x 20.48 x 1.72 in (W x D x H)
  • 24.8 lb (fully loaded)
  • DRAM: 16 GB
  • Internal storage: 100 GB SSD

Compatible Software (NOS)

  • Junos OS

Management & Licensing

  • CLI configuration
  • Junos streaming telemetry

Cooling & Power

  • Fan modules: 5
  • PSU redundancy: 1+1

Efficiency & Reliability

  • PFC and ECN congestion management

Ordering Information

  • Exact order code: QFX5120-48YM-AFO
  • Front-to-back airflow
Specifications
Weight 24.80 kg
Dimensions 17.4 × 1.7 cm
Product Type

Ethernet Switch
Main Port Count

48 Ports
Main Port Type

SFP28
Main Port Speed

1GbE, 10GbE, 25GbE
Uplink Port Count

8 Ports
Uplink Port Type

QSFP28
Uplink Port Speed

100GbE, 40GbE
Supported NOS

Junos OS
Dimensions

17.36 x 20.48 x 1.72 in
Weight

24.8 lb (fully loaded)
Frequently Asked Questions

Question:

What are the key features of the QFX5120-48YM-AFO Ethernet Switch?
[email protected]
12-Oct-2026

Answer:

The QFX5120-48YM has 48 1G/10G/25G access ports and eight 40G/100G uplinks, up to 4Tbps bidirectional switching, MACsec AES-256 capability and latency as low as 800ns. It uses a 2.9GHz quad-core Intel CPU with 16GB memory and 100GB SSD storage.

Question:

What are the expansion slot options available on the QFX5120-48YM?
[email protected]
12-Oct-2026

Answer:

These are fixed transceiver ports, not chassis expansion slots: 48 SFP28 access ports and eight QSFP28 uplink ports.

Question:

What types of ethernet technology are supported by the QFX5120-48YM switch?
[email protected]
30-Mar-2023

Answer:

It supports 25 Gigabit Ethernet and 100 Gigabit.

Question:

What are the power specifications of the QFX5120-48YM?
[email protected]
12-Oct-2026

Answer:

The QFX5120-48YM is specified at up to 446W, or 460W with MACsec enabled. It supports two power supplies for redundancy. Actual draw depends on optics and configuration.

Question:

What are the environmental certifications for this switch?
[email protected]
12-Oct-2026

Answer:

Environmental compliance includes RoHS 2015/863/EU, China RoHS, WEEE and REACH. The power supplies have 80 PLUS Silver efficiency certification.
Warranty
All new products are covered by the manufacturer warranty. To claim warranty, you may contact the manufacturer directly or contact your account executive at Hardware Nation. We can help facilitate the warranty processes between the customer and manufacturer.
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