Juniper QFX5120-48T-AFO is the exact ordering identifier covered here, in the QFX5120 range. The reviewed specification records access ports: 48 x 1/10GbE RJ-45; uplinks: 6 x 40/100GbE QSFP28; fastest access port: 10G. Use this guide to decide what to include in a configuration request, rather than treating similar model numbers as interchangeable.
Specifications that define this model
The values below retain the source qualifiers. A missing field is not evidence that a capability is included or absent.
| Specification | Recorded value |
|---|---|
| Access ports | 48 x 1/10GbE RJ-45 |
| Uplinks | 6 x 40/100GbE QSFP28 |
| Fastest access port | 10G |
| Layer | L3 |
| Switching capacity | 2160 Gbps |
| Form factor | 1U rack |
| Power supplies | AC power |
| Licensing | Feature licensing depends on the selected software tier |
How to evaluate this exact configuration
Access connections
Access connections for QFX5120-48T-AFO: 48 x 1/10GbE RJ-45. List the endpoints, required link speeds and spare connections before choosing the switch count. Do not count an uplink socket as another equivalent copper endpoint port.
Uplink arrangement
Uplink arrangement for QFX5120-48T-AFO: 6 x 40/100GbE QSFP28. Match the upstream port format, cable or transceiver, link speed and intended redundancy. Retain every qualification in the stated uplink arrangement when preparing the bill of materials.
Power supply configuration
Power supply configuration for QFX5120-48T-AFO: AC power. Write the required supply quantity, input power and airflow into the quote. A supply slot and an included supply are different bill-of-materials items.
Compare nearby ordering codes
| Model | Access ports | Uplinks | Power supplies |
|---|---|---|---|
| QFX5120-48T-AFO | 48 x 1/10GbE RJ-45 | 6 x 40/100GbE QSFP28 | AC power |
| QFX5120-48Y-AFO2 | 48 x 1/10/25GbE SFP28 | 8 x 40/100GbE QSFP28 | AC power |
| QFX5120-32C-AFO | 32 x 40/100GbE QSFP28 | Not recorded | AC power |
These are specification comparisons, not statements that the models are drop-in replacements. Compare the configuration limits before choosing an alternative.
QFX5120-48Y-AFO2 manufacturer reference · QFX5120-32C-AFO manufacturer reference
Questions before you request a quote
Which product does QFX5120-48T-AFO identify?
It identifies Juniper QFX5120 48-port 10G AC switch. Keep QFX5120-48T-AFO on the requirement and quote; a family name alone does not fix the ordering configuration.
What should I check before ordering QFX5120-48T-AFO?
Start with the specification and configuration checks above, then state the quantity, destination and intended connections or platform. Ask for the exact contents of the offered configuration and identify every proposed substitution separately.
Build a clear requirement
Specify QFX5120-48T-AFO, quantity and delivery country, then add the configuration information discussed above. Keep accessories and any accepted alternative as separate lines. Request current pricing and availability rather than relying on an article for live commercial information.
View the QFX5120-48T-AFO product listing · Browse Juniper switches · Request a quote
For the wider selection process, read the related buying guide.
Sources and scope
Document and identifier checks: 2026-10-17. Prepared from manufacturer documentation and the catalogue's recorded specifications; no hands-on benchmark is claimed. Confirm destination-specific options and configuration eligibility against the source documents. Prices, stock, delivery dates and coverage terms are not established by this guide.