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QFX5100-48S-DC-AFO
QFX5100, 48 SFP+/SFP ports, 6 QSFP ports, redundant fans, re...
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Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
QFX5100-48S-DC-AFO is a high-performance data center switch built on an optimized architecture that delivers low latency and high throughput for demanding network environments. Designed with a fixed rack-mount chassis, it features a direct current power configuration that ensures efficient, continuous operation while offering a robust set of connectivity options.
QFX5100-48S-DC-AFO provides 48 high-speed SFP ports with flexible uplink configurations and supports stacking to simplify network expansion and management. Its integrated hardware-based packet forwarding, scalable design, and reliable performance make it well suited for data center aggregation, enterprise campus deployments, and cloud-based infrastructures.
QFX5100-48S-DC-AFO price is is available on request. Get immediate quote.
Request bulk order quote for QFX5100-48S-DC-AFO for additional pricing. Browse the full Juniper Qfx5100 Series Switches series or explore all Juniper products.
In a hyperscale cloud data center, network architects deploy the Juniper QFX5100-48S-DC-AFO-QFX5100 as a spine switch – providing 48 SFP+ leaf uplinks and 6 QSFP+ 40G/100G core links for linear scale-out. Redundant fans and power supplies with built-in port-to-PSU airflow deliver sub-microsecond latency, 99.999% uptime and efficient hot-aisle cooling, enabling automated leaf-spine fabric orchestration at high density.
A global financial trading firm implements the QFX5100-48S-DC-AFO-QFX5100 at its exchange colocations to interconnect trading servers via 48 SFP+ low-latency ports and aggregate market data feeds over 6 QSFP+ uplinks. With front-to-back airflow, redundant power supplies and fans, this switch ensures sub-50 µs inter-switch latency and nonstop 24/7 trading execution, maximizing transaction speed and reliability.
A Tier 1 telecom operator uses the QFX5100-48S-DC-AFO-QFX5100 for 5G edge backhaul, leveraging 48 SFP+ ports for distributed radio sites and 6 QSFP+ ports for high-capacity core aggregation. Dual power and fan redundancy plus built-in port-to-PSU airflow guarantee five-nine availability and optimal thermal management in DC-powered telco racks, delivering scalable bandwidth and simplified operations for next-gen mobile services.
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| QFX5100-48S-DC-AFO |  QFX5100-48S-DC-AFI |  QFX5100-24Q-D-3AFO |  QFX5100-24Q-AA-AFI |  QFX5100-24Q-D-3AFI | |
|---|---|---|---|---|---|
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount / N/A | Rack-mount | Rack-mount |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| 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-DC-AFO | QFX5100-48S-DC-AFI | QFX5100-24Q-D-3AFO | QFX5100-24Q-AA-AFI | QFX5100-24Q-D-3AFI |
| Media Type Supported | Fiber | Fiber | Fiber | Fiber | Fiber |
| Memory | 4 GB | 512 MB | 512 MB | 4 GB | 4 GB |
| Number of Downlink Ports | 48 Ports | 48 Ports | 24 Ports | 24 Ports | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | 12–24 Ports | 24–48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Power Source | AC Power Supply | DC Power Supply | Redundant Power Supply / AC Power Supply / N/A | Redundant Power Supply / AC Power Supply | Redundant Power Supply |
| Product Name | Juniper QFX5100-48S-DC-AFO | Juniper Networks QFX5100-48S-DC-AFI Datacenter Switch | Juniper Networks QFX5100-24Q-D-3AFO Data Center Switch | Juniper QFX5100-24Q-AA-AFI Switch | Juniper QFX5100-24Q-D-3AFI Data Center Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | No | Yes | Yes | Yes |
| SFP Ports | 48 SFP Ports | 48 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 1280 Gbps | 1280 Gbps | 1280 Gbps | 1280 Gbps | 1920 Gbps |
| Uplink Configuration | 10G | 40G | 40G | 40G | 40G |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Front to back airflow aligned with our cooling strategy.
Stable SFP+ switching under load.
Reliable DC powered switch for data centers.
Easy deployment and management.
Strong operational stability.
The QFX5100-48S-DC-AFO is a Juniper high-performance Top-of-Rack switch featuring 48 SFP+/SFP ports, 6 QSFP ports, redundant fans, redundant DC power supplies, and built-in port-to-PSU airflow.
This model offers 48 SFP+/SFP ports for 1/10 GbE connectivity and 6 QSFP ports for 40 GbE uplinks or breakout support.
It includes hot-swappable redundant fans and dual load-sharing DC power supplies to ensure continuous operation and minimize downtime.
The engineered airflow path optimizes cooling by directing intake air from the ports toward the power supplies, enhancing thermal efficiency and reliability.
It runs Junos OS, offering a consistent CLI, automation capabilities, and extensive Layer 2/Layer 3 feature support for modern data centers.
The QFX5100-48S-DC-AFO delivers up to 1.44 Tbps of switching capacity and port-to-port latency as low as 600 ns for ultra-low-latency environments.
Yes. It supports Juniper Virtual Chassis technology, allowing up to 10 switches to operate as a single logical device for simplified management.
It is compatible with industry-standard SFP, SFP+, and QSFP+ optical and copper modules, including Juniper-branded and third-party IETF-compliant optics.
This model requires DC power inputs (–48 V) and supports dual, load-sharing power supplies for high availability.
Management is via a dedicated management Ethernet port, out-of-band serial console, SSH, NETCONF, SNMP, and Junos automation scripts.
Yes. It supports VXLAN, EVPN, MPLS, BGP, MLAG, CoS, IGMP–Snooping, and advanced security features for scalable multi-tenant environments.
Power consumption varies by port usage but typically ranges from 150 W (idle) to 550 W (full load), optimized by the efficient DC power architecture.
Yes. It ships with standard 1U rack-mount brackets and slides for 19-inch data center racks.
Juniper provides a one-year limited warranty with next-business-day hardware replacement; extended support and NBD advance hardware replacement are available.
It is ideal for Top-of-Rack aggregation in cloud, web-scale, HPC, and enterprise data centers requiring high density, low latency, and redundant DC power.
United States
