$5,000,000+
Inventory Delivered By
C
Cuthbert Lane
5
Front to back airflow aligned perfectly with racks.
QFX5100-48S-D-3AFO
QFX5100, 48 SFP+/SFP ports, 6 QSFP+ ports, redundant fans, 2...
Shipping to 
United States
United States United StatesName:
Added to cart 28 times recently
In stock - Ready to Ship
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
QFX5100-48S-D-3AFO
QFX5100, 48 SFP+/SFP ports, 6 QSFP+ ports, redundant fans, 2...
TRUSTED, TRIED, PROVEN
Inventory Delivered By
& Verified By
Solutions Powered By
QFX5100-48S-D-3AFO is a high-performance, data center-class switch designed with a robust architecture that supports both Layer 2 and Layer 3 networking. Built for demanding environments, it offers versatile power options including AC input with redundant power supply capability, ensuring uninterrupted operations and exceptional reliability.
Featuring 48 SFP ports for fiber connectivity alongside 4 high-speed 40GbE uplink ports, the QFX5100-48S-D-3AFO delivers impressive performance and scalability. Its stacking support and efficient switching capacity make it an ideal choice for modern data centers, campus networks, and enterprise environments that require secure, high-density, and low-latency connectivity.
QFX5100-48S-D-3AFO price is is available on request. Get immediate quote.
Request bulk order quote for QFX5100-48S-D-3AFO for additional pricing. Browse the full Juniper Qfx5100 Series Switches series or explore all Juniper products.
In a large-scale enterprise data center deploying a spine-leaf architecture, the QFX5100-48S-D-3AFO-QFX5100 with 48 SFP+/SFP ports and 6 QSFP+ ports delivers high-density 10GbE access and 40GbE uplinks. Equipped with redundant fans, dual DC power supplies, and front-to-back airflow, it ensures low latency, scalable throughput and uninterrupted operations under heavy virtualization and East-West traffic.
A research institution’s HPC cluster uses the QFX5100-48S-D-3AFO-QFX5100 as the core network fabric to interconnect hundreds of compute nodes at sub-microsecond latency. The switch’s 48 SFP+/SFP ports, 6 QSFP+ ports, redundant fans and dual DC power supplies guarantee maximum uptime, predictable performance and simplified maintenance for compute-intensive simulations.
In a telecom central office or edge POP, the QFX5100-48S-D-3AFO-QFX5100 aggregates multiple 10GbE/40GbE circuits into a compact 1U chassis. With front-to-back airflow, hot-swappable fans and dual DC power supplies, it delivers carrier-grade reliability, high port density and energy-efficient operation in harsh environments.
To get the detailed certification, please go to the Compliance Center.
 QFX5100-48S-D-3AFO |  QFX5100-24Q-D-3AFO |  QFX5100-48S-D-3AFI |  QFX5100-48T-AFI |  QFX5100-24Q-AFO | |
|---|---|---|---|---|---|
| Depth | 18 inches | N/A | 17.5 inches | 18 inches | 18.5 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 40G |
| Flash Memory | 64 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount / N/A | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | N/A | 1.75 inches | 1.75 inches | 1.75 inches |
| IOS | IP Services | N/A | IP Services | IP Services | Junos OS |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | N/A |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | QFX5100-48S-D-3AFO | QFX5100-24Q-D-3AFO | QFX5100-48S-D-3AFI | QFX5100-48T-AFI | QFX5100-24Q-AFO |
| Media Type Supported | Fiber | Fiber | Fiber | Twisted Pair | Fiber |
| Memory | 256 MB | 512 MB | 4 GB | 4 GB | 256 MB |
| Number of Downlink Ports | 48 Ports | 24 Ports | 48 Ports | 48 Ports | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 48 x 1/10GbE SFP ports, 4 x 40GbE QSFP+ uplink ports | N/A | N/A | 48 x 10GBase-T ports and 4 x 40G QSFP+ uplink ports | 24 x 40GbE QSFP+ Ports |
| Power Consumption | 265 W | N/A | 330W | 220W | 200 W |
| Power Source | Redundant Power Supply / AC Power Supply | Redundant Power Supply / AC Power Supply / N/A | Redundant Power Supply / AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Juniper QFX5100-48S-D-3AFO | Juniper Networks QFX5100-24Q-D-3AFO Data Center Switch | Juniper Networks QFX5100-48S-D-3AFI | Juniper Networks QFX5100-48T-AFI Ethernet Switch | Juniper QFX5100-24Q-AFO |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | Yes | Yes | No | No |
| SFP Ports | 48 SFP Ports | 4 SFP Ports | 48 SFP Ports | 4 SFP Ports | N/A |
| Switching Capacity | 1280 Gbps | 1280 Gbps | 1280 Gbps | 1440 Gbps | 1440 Gbps |
| Switching Capacity with Stacking | N/A | 1280 Gbps | 2560 Gbps | N/A | N/A |
| Uplink Configuration | 10G | 40G | 10G | 10G | 40G |
| Weight | 20 lbs | N/A | 18 lbs | 19 lbs | 12 lbs |
| Width | 17.5 inches | N/A | 19 inches | 17.5 inches | 17.5 inches |
Front to back airflow aligned perfectly with racks.
Consistent SFP+ performance.
Reliable DC powered option.
Easy to integrate.
Good operational stability.
The Juniper QFX5100-48S-D-3AFO provides 48 SFP+/SFP ports for 1/10GbE connectivity and 6 QSFP+ ports for 40GbE uplinks in a 1U form factor.
The QFX5100-48S-D-3AFO delivers up to 1.44Tbps of non-blocking switching capacity with 1.44 Bpps packet forwarding performance.
It supports OSPF, BGP, IS-IS and static routing, enabling fully featured Layer 3 deployments in campus and data center environments.
Yes. It provides full VXLAN, EVPN and MPLS support for scalable multi-tenant segmentation and overlay networks.