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QFX5100-48S-DC-AFI
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-AFI is a high‐performance datacenter switch engineered with a scalable, fixed-configuration architecture that supports both Layer 2 and Layer 3 operations. It provides 48 SFP+ ports for high-density 10GbE connectivity along with a dedicated 40G uplink configuration, ensuring robust performance in environments that demand low latency and high throughput.
QFX5100-48S-DC-AFI offers flexible power options with a dedicated DC power supply and delivers energy‐optimized performance suitable for demanding enterprise and service provider networks. Its compact, rack-mount design and advanced stacking support (via Virtual Chassis technology) enable seamless network expansion and reliable operations across modern data center use cases.
QFX5100-48S-DC-AFI price is is available on request. Get immediate quote.
Request bulk order quote for QFX5100-48S-DC-AFI for additional pricing. Browse the full Juniper Qfx5100 Series Switches series or explore all Juniper products.
In hyperscale data centers, network architects deploy the QFX5100-48S-DC-AFI to connect 48 10GbE servers via SFP+/SFP and six 100GbE QSFP28 uplinks into a leaf-spine fabric. Redundant fans and power supplies combined with PSU-to-port airflow guarantee continuous operation and optimal thermal management. Benefit: delivers non-blocking 1.44Tbps throughput, sub-microsecond latency and 99.999% availability, enabling seamless capacity scaling and simplified operations.
Financial exchanges integrate the QFX5100-48S-DC-AFI at trading floors to aggregate 48 direct 10GbE links to algorithmic trading servers and six 100GbE QSFP uplinks to exchange gateways. The built-in PSU-to-port airflow design and redundant components prevent thermal throttling and eliminate single points of failure. Outcome: achieves sub-microsecond round-trip latency, 24/7 fault tolerance and regulatory compliance through precision QoS and hardware redundancy.
Service providers deploy the QFX5100-48S-DC-AFI at 5G cell sites to aggregate 48 SFP+/SFP links from remote radios and six 100GbE QSFP uplinks to the core network. The PSU-to-port airflow path plus redundant fans and power supplies maintain optimal performance in harsh edge environments. Benefit: delivers carrier-grade reliability, automated MPLS/EVPN segmentation and seamless failover, reducing OPEX and accelerating service roll-out.
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| QFX5100-48S-DC-AFI |  QFX5100-24Q-AA-AFI |  QFX5100-48S-DC-AFO |  QFX5100-96S-AFO |  QFX5100-96S-AFI | |
|---|---|---|---|---|---|
| Depth | 10.7 inches | 17 inches | 18 inches | 18.5 inches | 18 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10GbE | 10G |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.72 inches | 1.75 inches | 1.75 inches | 1.73 inches | 1.75 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10GbE | 10G |
| 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-AFI | QFX5100-24Q-AA-AFI | QFX5100-48S-DC-AFO | QFX5100-96S-AFO | QFX5100-96S-AFI |
| Media Type Supported | Fiber | Fiber | Fiber | Fiber | Fiber |
| Memory | 512 MB | 4 GB | 4 GB | 4 GB | 4 GB |
| Number of Ethernet Ports | 24–48 Ports | 12–24 Ports | 24–48 Ports | Over 48 Ports | Over 48 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Power Source | DC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | Juniper Networks QFX5100-48S-DC-AFI Datacenter Switch | Juniper QFX5100-24Q-AA-AFI Switch | Juniper QFX5100-48S-DC-AFO | Juniper Networks QFX5100-96S-AFO | Juniper QFX5100-96S-AFI |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | Yes | No | Yes | Yes |
| SFP Ports | 48 SFP Ports | 4 SFP Ports | 48 SFP Ports | 96 x 10GbE SFP+ ports | 96 SFP Ports |
| Switching Capacity | 1280 Gbps | 1280 Gbps | 1280 Gbps | 1920 Gbps | 2560 Gbps |
| Uplink Configuration | 40G | 40G | 10G | 40G | 10G |
| Weight | 21 lbs | 15 lbs | 15 lbs | 15 lbs | 30 lbs |
| Width | 17.17 inches | 19 inches | 17.5 inches | 17.5 inches | 17.5 inches |
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.
DC powered model integrates well into our racks.
Strong SFP+ density with reliable airflow.
Stable performance for leaf switching.
No issues under sustained traffic.
Excellent value for data center access.
The QFX5100-48S-DC-AFI is a high-performance data center switch featuring 48 SFP+/SFP ports, six QSFP ports, redundant power supplies and fans, and DC-to-airflow cooling.
It supports 48 SFP+/SFP ports at 1/10 GbE and six QSFP ports at 40 GbE for flexible uplinks and spine-leaf topologies.
The switch delivers 1.44 Tbps of switching capacity and up to 1.07 Bpps of throughput for low-latency, high-density environments.
Yes, it includes dual hot-swappable DC power supplies and fully redundant, front-to-back fans to ensure uninterrupted operation.
This model uses built-in port (front-to-back) airflow for efficient hot-aisle/cold-aisle data center deployments.
It supports advanced Junos OS features including VXLAN, EVPN, MLAG, QoS, MPLS, BGP, and segment routing for modern data centers.
Yes, it can form a Virtual Chassis of up to 10 switches using high-speed QSFP+ uplinks for unified management and scaling.
Ideal for spine-leaf fabrics, server top-of-racks, HPC clusters, and cloud-scale workloads requiring low latency and high port density.
Maximum power draw is approximately 370 W under full load, with each DC power supply supporting up to 600 W.
The switch is 1 RU high, 17.25” deep, and mounts in standard 19” racks. Weight is 12.3 kg (27.1 lb) fully loaded.
It operates between 0 °C and 40 °C (32 °F to 104 °F) with relative humidity from 5% to 90% non-condensing.
Junos OS comes with a Base license; advanced features like EVPN and MPLS require optional Advanced Feature licenses.
Manage via CLI, Junos Space, J-Vision, NETCONF/REST APIs, and SNMP. It supports Zero-Touch Provisioning for rapid deployments.
Typical port-to-port latency is ≤500 ns, ensuring consistent low-latency performance for sensitive applications.
Yes, it fully supports VXLAN EVPN for scalable, multi-tenant fabrics with simplified provisioning and operational flexibility.
Juniper offers a one-year limited warranty, with options for Juniper Care and Advanced services for 24/7 hardware and software support.
United States
