Juniper QFX5120-48Y-AFO2 Managed Switch – 48-Port 25GbE SFP28, 8-Port 100GbE QSFP28
The Juniper QFX5120-48Y-AFO2 is a high-density 1U managed Ethernet switch designed for modern data center leaf, top-of-rack, data center edge and campus distribution deployments. It combines 48 tri-speed SFP28 ports supporting 1GbE, 10GbE and 25GbE with eight QSFP28/QSFP+ ports supporting 100GbE and 40GbE uplinks.
The AFO2 variant is equipped with AC power supplies and front-to-back airflow, making it suitable for data center rack environments designed around front-to-back cooling. The switch runs Junos OS and provides Layer 2 and Layer 3 switching and routing capabilities, including EVPN-VXLAN functionality for modern data center fabrics.
Juniper QFX5120-48Y-AFO2 Key Features
- 48 × 1/10/25GbE SFP28 downlink ports
- 8 × 40/100GbE QSFP+/QSFP28 uplink ports
- Up to 4 Tbps bidirectional switching capacity
- Up to 2 Bpps forwarding performance
- Low latency as low as 800 nanoseconds
- 32MB packet buffer
- Junos OS managed switching platform
- EVPN-VXLAN support for data center overlays
- Layer 2 and Layer 3 switching and routing
- 1U fixed rack-mount form factor
- Front-to-back airflow
- Dual 650W AC power supplies shipped with the AFO2 variant
- Five front-to-back airflow fan modules
Juniper QFX5120-48Y-AFO2 Technical Specifications
| Specification |
Details |
| Brand |
Juniper Networks |
| Model |
QFX5120-48Y-AFO2 |
| Product Family |
QFX5120 |
| Device Type |
Managed Ethernet Switch |
| Form Factor |
1U Fixed |
| Operating System |
Junos OS |
| Downlink Ports |
48 × SFP28 |
| Downlink Speeds |
1GbE / 10GbE / 25GbE |
| Uplink Ports |
8 × QSFP28/QSFP+ |
| Uplink Speeds |
40GbE / 100GbE |
| Switching Capacity |
Up to 4 Tbps bidirectional |
| Forwarding Rate |
Up to 2 Bpps |
| Latency |
As low as 800ns |
| Packet Buffer |
32MB |
| MAC Address Capacity |
288,000 |
| IPv4 Unicast Routes |
Up to 351,000 |
| IPv6 Unicast Routes |
Up to 168,000 |
| VLANs |
Up to 4,093 |
| ARP Entries |
Up to 64,000 |
| Power Supplies |
2 × 650W AC |
| Airflow |
Front-to-back, Air Out |
| Fan Modules |
5 |
| CPU |
2.2GHz Quad-Core Intel CPU |
| System Memory |
16GB |
| Storage |
50GB SSD |
| Dimensions |
1.72 × 17.36 × 20.48 inches |
| Dimensions Metric |
4.37 × 44.09 × 52.02cm |
| Weight |
Approx. 10.75kg fully loaded |
Juniper QFX5120-48Y-AFO2 Networking Capabilities
The QFX5120-48Y-AFO2 is designed for high-performance Layer 2 and Layer 3 networking. Its combination of 25GbE server-facing interfaces and 100GbE uplinks makes it suitable for leaf-and-spine data center architectures and high-bandwidth top-of-rack deployments.
Juniper supports EVPN-VXLAN capabilities on the QFX5120 platform, enabling modern overlay and underlay network architectures. The switch can also operate in data center edge and campus distribution roles where high port density and low latency are required.
QFX5120-48Y-AFO2 Port Configuration
| Interface Group |
Quantity |
Supported Speeds |
Connector |
| Server/Downlink |
48 |
1GbE / 10GbE / 25GbE |
SFP28 |
| Uplink |
8 |
40GbE / 100GbE |
QSFP+ / QSFP28 |
| Management |
2 |
1GbE management |
RJ-45 |
| Console |
1 |
Console management |
Console interface |
| USB |
1 |
USB |
USB |
Supported optics and cables include compatible SFP, SFP+, SFP28, QSFP+ and QSFP28 modules and direct-attach options. The eight QSFP28 uplink ports can support breakout configurations where supported, allowing additional 25GbE interfaces from 100GbE ports.
Juniper QFX5120-48Y-AFO2 Applications
- Data center top-of-rack switching
- 25GbE server access networks
- Leaf-and-spine data center architectures
- 100GbE aggregation and uplink networks
- Data center edge deployments
- Campus distribution and core deployments
- EVPN-VXLAN data center fabrics
- High-density enterprise Ethernet networks
- Virtualized and bare-metal server environments
Juniper QFX5120-48Y-AFO2 Compatibility
The QFX5120-48Y-AFO2 is part of the Juniper QFX5120-48Y platform and runs Junos OS. Optics, DAC cables, breakout cables and other network accessories should be selected according to Juniper's compatibility documentation for the specific interface and deployment.
The AFO2 designation is important: this model is the AC-powered, front-to-back airflow version. It should not be confused with the QFX5120-48Y-AFI2, which uses AC power with back-to-front airflow, or the DC-powered QFX5120-48Y-DC variants.
Juniper QFX5120-48Y-AFO2 Price in Bangladesh
For the latest Juniper QFX5120-48Y-AFO2 Managed Switch price in Bangladesh, contact Datacom Technologies (BD). Pricing and availability may vary depending on product condition, configuration, included optics, power supplies, warranty and sourcing.
Why Choose Juniper QFX5120-48Y-AFO2?
- 48 high-density 1/10/25GbE SFP28 ports for server connectivity
- 8 high-speed 40/100GbE QSFP+/QSFP28 uplink ports
- Up to 4 Tbps bidirectional switching capacity
- Low-latency architecture suitable for demanding data center workloads
- EVPN-VXLAN support for modern data center fabric deployments
- Compact 1U design for high-density rack installations
- Front-to-back airflow for compatible data center cooling layouts
- Dual 650W AC power supplies for resilient power configuration
Buy Juniper QFX5120-48Y-AFO2 in Bangladesh
To purchase the Juniper QFX5120-48Y-AFO2 Managed Switch in Bangladesh, contact Datacom Technologies (BD) for current pricing, configuration options, compatibility confirmation and sourcing information.
Email: sales@datacom.com.bd
-750x250.png "Datacom Technologies (BD)"){kind=logo}
