'QFX5100'}
Juniper
Juniper QFX5100-48T-DC-AFI New - 48-Port 10G DC Switch
MPN: QFX5100-48T-DC-AFI
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Lifetime
Warranty
ISO 9001
Certified Testing
R2v3
Responsible Refurb
25+
Years
5K+
Customers
ISO
Certified
✓
Tested
Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.
Tested to factory specification. Backed by 25 years of enterprise trust.
The Juniper QFX5100-48T-DC-AFI is a purpose-built, fixed-configuration top-of-rack (ToR) switch tailored for high-performance data center deployments. Featuring 48 x 10GbE RJ-45 copper ports and 6 x 40GbE QSFP+ uplink ports, this switch delivers substantial bandwidth density to support compute-heavy workloads and bandwidth-intensive applications.Equipped with a DC power supply and airflow-in (AFI, front-to-back) cooling, the QFX5100-48T-DC-AFI is optimized for data center cabinets where power and airflow are structured for consistent thermal management. DC power input makes it an excellent fit for carrier-grade or purpose-built data center environments where DC power distribution is standard.
Running Juniper's proven Junos OS, this switch supports a rich feature set including VXLAN, EVPN, BGP, OSPF, and robust Quality of Service (QoS) capabilities. Its programmable architecture enables automation-ready deployments compatible with modern DevOps workflows and orchestration tools.
The QFX5100 series is widely recognized for its reliability, consistent forwarding performance, and deep integration within Juniper's broader data center fabric solutions. Whether deployed as a standalone ToR switch or as part of a larger spine-leaf architecture, the QFX5100-48T-DC-AFI delivers the performance and flexibility that enterprise IT teams demand.
Offered new by WhaleyComm, this unit provides full access to Juniper support and software updates for the duration of any active service contract.
Technical Specifications
{'MPN'
'QFX5100-48T-DC-AFI', 'Brand': 'Juniper Networks', 'Condition': 'New', 'Form Factor': '1U Rack-Mount', '10GbE Copper Ports (RJ-45)': '48', '40GbE QSFP+ Uplink Ports': '6', 'Power Supply Type': 'DC', 'Airflow Direction': 'AFI (Airflow In / Front-to-Back)', 'Operating System': 'Junos OS', 'Switch Series': 'QFX5100'}
Ideal Use Cases
Top-of-Rack Data Center Deployment
The QFX5100-48T-DC-AFI excels as a top-of-rack switch in high-density server environments, connecting 48 servers via 10GbE copper while providing 40GbE uplinks to the aggregation or spine layer. Its compact 1U form factor maximizes rack efficiency without sacrificing port density.
Spine-Leaf Fabric Architecture
Deploy the QFX5100-48T-DC-AFI as a leaf node within a modern spine-leaf network fabric, leveraging EVPN/VXLAN support for scalable Layer 2 and Layer 3 overlay networking. This architecture simplifies east-west traffic flows essential for virtualized and containerized workloads.
DC-Powered Carrier or Colocation Environments
Facilities utilizing DC power distribution—such as carrier hotels, colocation data centers, or telecom-grade environments—benefit from the native DC power input, eliminating the need for AC-to-DC conversion equipment. Combined with front-to-back airflow, it integrates cleanly into structured hot-aisle/cold-aisle cooling designs.
What's Included
✔ Juniper QFX5100-48T-DC-AFI Switch (New)
✔ DC Power Supply
✔ Rack-Mount Hardware
✔ Junos OS Pre-installed
✔ Documentation Package
Lifetime Warranty - No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. 25 years, 5,000+ customers.
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
✓
The QFX5100-48T-DC-AFI runs Junos OS and is compatible with Juniper's QFX and EX series switching platforms in mixed fabric deployments. It integrates with Juniper Contrail Networking and supports standard protocols including BGP, OSPF, VXLAN, and EVPN for multi-vendor interoperability. Management compatibility includes Juniper Junos Space Network Management Platform and supports NETCONF/YANG for automation-driven environments. Standard 40GbE QSFP+ uplinks are compatible with industry-standard DAC cables, AOC cables, and optical transceivers.
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
Shipping
Orders ship within 1-2 business days.
Returns
Contact support for DOA or warranty issues.
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
AFI (Airflow In) means air enters from the front of the unit and exits out the back, aligning with front-to-back airflow data center designs. AFO (Airflow Out) is the reverse, for back-to-front airflow configurations. Choosing the correct airflow direction is essential for proper thermal management in your rack.
Yes, the QFX5100-48T-DC-AFI running Junos OS supports both VXLAN overlay networking and EVPN (Ethernet VPN) control plane, making it well-suited for modern virtualized data center fabrics and multi-tenant environments.
The DC power configuration is designed for data centers and carrier environments where DC power distribution infrastructure is already in place, such as telecom facilities or colocation providers. It eliminates the need for additional AC/DC power conversion and can improve overall power efficiency in those environments.
Yes, WhaleyComm is offering this unit as New. As a new product, it is eligible for Juniper support contracts, software updates, and standard warranty coverage, giving your team full access to Juniper's technical resources.
Juniper QFX5100-48T-DC-AFI New - 48-Port 10G DC Switch
$1,549.00
Juniper
Juniper QFX5100-48T-DC-AFI New - 48-Port 10G DC Switch
MPN: QFX5100-48T-DC-AFI
$1,549.00
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