REFURBISHED
Juniper
Juniper EX4650-48Y-AFI Refurbished — 48x25G 8x100G 1U Switch
MPN: EX4650-48Y-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.
Professionally tested to factory specification. Backed by 25 years of enterprise trust.
This refurbished Juniper EX4650-48Y-AFI is a high-density 1U Layer 3 managed Ethernet switch delivering 48 ports of 1GbE/10GbE/25GbE (SFP/SFP+/SFP28) and 8 ports of 40GbE/100GbE (QSFP+/QSFP28), with back-to-front (AFI) airflow for cold-aisle data center deployments. Every unit has been professionally tested, reset to factory defaults, and verified against Juniper's published hardware specifications before shipment.Powered by Junos OS, the EX4650-48Y-AFI delivers up to 4 Tbps of wire-speed Layer 2 and Layer 3 forwarding at up to 2.98 Bpps with latency as low as 550 nanoseconds. A 2.3 GHz quad-core Intel CPU paired with 16 GB of memory and 64 GB SSD storage drives a feature-rich control plane that supports EVPN-VXLAN, MPLS, BGP, IS-IS, Virtual Chassis, MC-LAG, Zero Touch Provisioning, and Python automation. Each QSFP28 uplink port can break out to 4x25GbE, expanding maximum 25GbE port density to 80 per switch. Dual 650W AC power supplies ship pre-installed with full hot-swap redundancy.
WhaleyComm sources and tests enterprise-grade Juniper hardware so organizations can expand or refresh network capacity at a fraction of new-unit cost. At $6,495, the EX4650-48Y-AFI represents exceptional value for data center, campus distribution, and top-of-rack deployments — backed by WhaleyComm's Lifetime Warranty and 25+ years of serving 5,000+ enterprise customers.
Technical Specifications
Part Number
EX4650-48Y-AFI
Form Factor
1U rack-mountable
Downlink Ports
48 x 1GbE/10GbE/25GbE (SFP/SFP+/SFP28)
Uplink Ports
8 x 40GbE/100GbE (QSFP+/QSFP28)
Max 25GbE Ports (with breakout)
80
Switching Capacity
4 Tbps
Forwarding Rate
2.98 Bpps
Latency
As low as 550 nanoseconds
Buffer Memory
32 MB shared
CPU
2.3 GHz quad-core Intel
System Memory
16 GB
Storage
64 GB SSD
Power Supplies
2 x 650W AC (hot-swappable, redundant, load-sharing)
Airflow Direction
Back-to-front (AFI — cold-aisle intake)
Fan Modules
5 (4+1 redundancy), hot-swappable
Dimensions (H x W x D)
1.72 x 17.36 x 20.48 in (4.37 x 44.09 x 52.02 cm)
Operating System
Juniper Junos OS
Layer Support
Layer 2 and Layer 3
Virtualization
EVPN-VXLAN (L2 and L3 gateway)
Virtual Chassis
Supported (up to 8x uplink ports usable as VCPs)
Switching Modes
Cut-through and store-and-forward
Ideal Use Cases
Data Center Top-of-Rack (ToR)
The EX4650-48Y-AFI connects high-density 25GbE servers at the top of rack with 100GbE uplinks to spine or aggregation switches, delivering wire-speed performance and latency as low as 550 nanoseconds.
Campus Distribution and Aggregation
With 4 Tbps switching capacity and support for EVPN-VXLAN IP fabric, the switch serves as a high-performance campus distribution layer connecting access switches upward to core infrastructure.
EVPN-VXLAN Leaf Switch in IP Fabric
The EX4650-48Y-AFI supports full L2 and L3 VXLAN gateway services with EVPN overlay programming, making it a natural leaf node in modern IP Clos data center fabrics.
Enterprise Server Access Aggregation
With tri-speed 1GbE/10GbE/25GbE downlinks and up to 8x100GbE uplinks, the switch provides very low 1.5:1 oversubscription from access to aggregation — ideal for mixed-generation server environments.
Cold-Aisle Data Center Deployment
Back-to-front (AFI) airflow draws cool air from the front cold aisle and exhausts warm air to the rear hot aisle, maintaining consistency with standard data center thermal management design.
Virtual Chassis Fabric Expansion
The EX4650-48Y-AFI can participate in an all-EX4650 Virtual Chassis using the QSFP+ or QSFP28 uplink ports as Virtual Chassis Ports (VCPs), simplifying management of multi-switch deployments as a single logical device.
What's Included
1 x Juniper EX4650-48Y-AFI Switch
2 x AC Power Supplies (650W, pre-installed)
2 x AC Power Cords
5 x Fan Modules (pre-installed, 4+1 redundancy)
4-Post Rack Mount Kit
Certificate of Testing
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. We have stood behind our hardware for 25 years and 5,000+ customers — that is not a marketing line, it is our operating standard.
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
COMPATIBLE OPTICS & CABLES
✓
It supports SFP, SFP+, and SFP28 transceivers on downlink ports and QSFP+ and QSFP28 transceivers on uplink ports.
✓
Virtual Chassis configurations are supported using QSFP+ or QSFP28 uplink ports (ports 48–55) as Virtual Chassis Ports.
SOFTWARE COMPATIBILITY
✓
The EX4650-48Y-AFI runs Juniper Junos OS and is compatible with the broader Juniper EX Series, QFX Series, MX Series, and SRX Series platforms through a shared Junos OS code base.
For compatibility verification specific to your environment, contact our engineering team: +1 214 607-4800 or sales@whaleycomm.com
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
Shipping
Orders typically ship within 1-2 business days after payment confirmation. Tracking details are shared once the order has been dispatched.
Returns
Eligible products can be returned according to WhaleyComm's return policy. For DOA, warranty, or product-related issues, contact the support team for replacement or resolution.
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
Basic L2 switching and L3 routing are included with the Base license that ships with the hardware. EVPN-VXLAN and BGP require the Premium software license (EX4650-PFL), which must be purchased separately, and the license is not portable across devices. Contact our team to discuss licensing options before deployment.
Yes. Each QSFP28 uplink port can be configured as a 4x25GbE interface using breakout cables, increasing the total number of 25GbE-capable ports to 80 per switch. Each QSFP+ port can similarly be broken out into 4x10GbE interfaces.
Yes. AFI (Air Flow In) denotes back-to-front airflow, meaning cool air is drawn in from the front panel (cold aisle) and exhausted from the rear (hot aisle). This matches standard cold-aisle intake data center thermal designs and is confirmed in Juniper's official hardware documentation.
Yes. Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it at no cost — no time limits, no questions asked.
Every unit goes through our ISO 9001-certified testing process: full power-on diagnostics, port-by-port functionality testing, firmware verification, factory reset, and final inspection. A Certificate of Testing ships with every unit.
Juniper EX4650-48Y-AFI Refurbished — 48x25G 8x100G 1U Switch
$6,495.00
Juniper
Juniper EX4650-48Y-AFI Refurbished — 48x25G 8x100G 1U Switch
MPN: EX4650-48Y-AFI
$6,495.00
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