United States$5,000,000+
Inventory Delivered By
B
Bernard Colton
4
10G Base-T ports worked well for mixed environments.
QFX5100-48T-AFI
Original Stock
Ready to Ship
QFX5100, 48 100M/1G/10G Base-T, 6 QSFP ports, redundant fans...
FEATURED DEAL
Name:
QFX5100-48T-AFI
- Description:
- QFX5100, 48 100M/1G/10G Base-T, 6 QSFP ports, redundant fans, redundant power supplies, PSU to built in port air flow.
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Juniper
- GTIN:
- 658759179333
- Condition:
- Warranty:
- 3
- List Price:
$34,500.00
- Price:
$9,378.0072.8% off
Quantity:
1
Business price:
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:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
QFX5100-48T-AFI Overview
QFX5100-48T-AFI is a high-performance Ethernet switch engineered with a robust, modular architecture to meet the demanding needs of data centers and enterprise networks. It is designed with advanced stacking and scalability in mind, ensuring optimal performance while maintaining low latency in high-density environments.
QFX5100-48T-AFI offers 48 high-speed 10/100/1000 copper ports alongside 4 QSFP+ uplink ports, delivering versatile connectivity options for diverse network deployments. With support for AC power supply configurations and a focus on reliable, mission-critical performance, this switch meets the rigorous requirements of modern access and aggregation applications.
QFX5100-48T-AFI price is $9,378.00, a 72.8% saving from the Juniper list price of $34,500.00. QFX5100-48T-AFI is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QFX5100-48T-AFI for additional pricing. Browse the full Juniper Qfx5100 Series Switches series or explore all Juniper products.
QFX5100-48T-AFI Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 220W
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 48 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Twisted Pair
- Redundant Power Supply Supported
- No
- Manufacturer Part Number
- QFX5100-48T-AFI
- Uplink Configuration
- 10G
- IOS
- IP Services
- POE Support
- Non POE
- SFP Ports
- 4 SFP Ports
- Memory
- 4 GB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Port/Expansion Slot Details
- 48 x 10GBase-T ports and 4 x 40G QSFP+ uplink ports
- Flash Memory
- 256 MB
- Switching Capacity
- 1440 Gbps
- Switching Capacity with Stacking
- N/A
- Product Name
- Juniper Networks QFX5100-48T-AFI Ethernet Switch
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 18 inches
- Weight
- 19 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QFX5100-48T-AFI |  QFX5100-24Q-DC-AFO |  QFX5100-24Q-3AFO |  QFX5100-96S-DC-AFI |  QFX5100-24Q-AA-AFI | |
|---|---|---|---|---|---|
| Depth | 18 inches | 12 inches | 17 inches | 18 inches | 17 inches |
| 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 | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.73 inches | 1.73 inches | 1.75 inches | 1.75 inches |
| IOS | IP Services | IP Services | IP Lite | IP Services | IP Services |
| 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 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | QFX5100-48T-AFI | QFX5100-24Q-DC-AFO | QFX5100-24Q-3AFO | QFX5100-96S-DC-AFI | QFX5100-24Q-AA-AFI |
| Media Type Supported | Twisted Pair | Fiber | Fiber | Fiber | Fiber |
| Memory | 4 GB | 4 GB | 4 GB | 512 MB | 4 GB |
| Number of Downlink Ports | 48 Ports | 24 Ports | 24 Ports | N/A | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 12–24 Ports | 12–24 Ports | Over 48 Ports | 12–24 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | 48 x 10GBase-T ports and 4 x 40G QSFP+ uplink ports | 24 QSFP+ ports for high-density 40/100G connectivity | 24 QSFP+ ports | N/A | 24 x 40GbE QSFP ports, 4 x 10GbE SFP+ ports |
| Power Consumption | 220W | 230 W | 370W | 450 W | 250 W |
| Power Source | AC Power Supply | DC Power Supply | AC Power Supply | Redundant Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | Juniper Networks QFX5100-48T-AFI Ethernet Switch | Juniper QFX5100-24Q-DC-AFO | Juniper QFX5100-24Q-3AFO | Juniper QFX5100-96S-DC-AFI | Juniper QFX5100-24Q-AA-AFI 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 | No | Yes | Yes |
| SFP Ports | 4 SFP Ports | N/A | N/A | 96 SFP Ports | 4 SFP Ports |
| Switching Capacity | 1440 Gbps | 1280 Gbps | 1440 Gbps | 1440 Gbps | 1280 Gbps |
| Switching Capacity with Stacking | N/A | N/A | N/A | 1440 Gbps | N/A |
| Uplink Configuration | 10G | 40G | 40G | 10G | 40G |
| Weight | 19 lbs | 20 lbs | 8 lbs | 25 lbs | 15 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches | 19 inches |
Reviews & Ratings
M
Miles Davenport
5
Stable switching with good airflow design.
T
Tobias Finch
5
Reliable for server access roles.
Q
Quincy Harrow
5
Easy to integrate into existing fabric.
E
Edmund Blakeley
5
Consistent performance.
Questions & Answers
What is the Juniper QFX5100-48T-AFI switch?
The QFX5100-48T-AFI is a high-performance data center switch from Juniper featuring 48 100M/1G/10G Base-T ports, 6 QSFP ports, redundant fans and power supplies, and front-to-back airflow to support demanding enterprise and cloud environments.
How many ports and what speeds does the QFX5100-48T-AFI support?
It provides 48 Base-T ports that auto-negotiate 100 Mbps, 1 Gbps, or 10 Gbps, plus 6 QSFP uplink ports for 40 Gbps connectivity, allowing flexible server and spine links.
What redundancy features ensure high availability?
The switch includes dual, hot-swappable AC or DC power supplies and redundant, front-to-back cooling fans, enabling uninterrupted operation during component maintenance or failure.
What is the switching capacity and throughput?
With a 1.44 Tbps backplane and up to 1.07 billion packets per second (bpps) forwarding performance, the QFX5100-48T-AFI handles large east-west data flows with low latency.
Which airflow direction does the QFX5100-48T-AFI use?
It uses front-to-back airflow, drawing cool air in from the front and exhausting warm air out the back, optimized for hot-aisle/cold-aisle data center layouts.
What network operating system does this switch run?
It runs Juniper’s Junos OS, offering consistent CLI, automation APIs, modular architecture, and a rich feature set for Layer 2/Layer 3 protocols.
Can the QFX5100-48T-AFI be deployed in a Virtual Chassis?
Yes, it supports Virtual Chassis technology, allowing you to interconnect up to 10 QFX5100 switches and manage them as a single logical device for simplified operations.
Which Layer 2 and Layer 3 features are supported?
It supports VLAN, VXLAN, MLAG, Spanning Tree, OSPF, BGP, IS-IS, VRF-Lite, and advanced MPLS capabilities, delivering full data center fabric flexibility.
How is the switch managed and automated?
Management options include Junos CLI, Junos Space, Juniper Network Director, REST APIs, Ansible modules, and native Python scripting for end-to-end network automation.
What uplink options are available on the QFX5100-48T-AFI?
Six QSFP ports support 4×10 GbE breakout or native 40 GbE, enabling spine-leaf architectures with flexible uplink speeds.
Does the QFX5100-48T-AFI support PoE/PoE+?
No, the QFX5100-48T-AFI does not provide PoE or PoE+; it is optimized for data center leaf and spine deployments where power over Ethernet is not required.
What are the typical use cases for this switch?
Ideal use cases include top-of-rack leaf switches, campus aggregation, NFV infrastructure, and spine-leaf fabrics in cloud and enterprise data centers.
What is the power consumption of the QFX5100-48T-AFI?
In typical operation, the switch consumes around 250 W; maximum power draw with all modules and fans installed is approximately 350 W, depending on environment.
Which environments and temperature ranges are supported?
Operating temperature ranges are 0 °C to 40 °C (32 °F to 104 °F), with relative humidity from 5% to 90% non-condensing, suitable for standard data center conditions.
Does Juniper offer a warranty and support for this model?
Yes, Juniper provides a limited lifetime hardware warranty and offers optional support tiers through Juniper Care for software updates, 24×7 support, and advance replacement.
How do I order spare modules and parts for the QFX5100-48T-AFI?
Spare fans, power supplies, and transceiver modules can be ordered via Juniper’s part numbers; consult Juniper’s Spare Module Matrix or contact your Juniper sales representative.