What ports does the QFX3500-48S4Q-E support?

It features 48 x 10GbE SFP+ dual-mode ports (configurable as 10GbE or 1GbE) and 4 x 40GbE QSFP+ ports (each as 4x10GbE or 40GbE). Additional interfaces include dual management ports (copper/fiber), 1x console port, and 1x USB port for comprehensive data center connectivity.

What is the switching performance?

The switch delivers 1.28 Tbps switching capacity and 960 Mpps throughput, supporting cut-through and store-and-forward modes with high-density MAC learning for wire-speed, low-latency operation in demanding environments.

Does it support FCoE and DCB?

Yes, it includes IEEE DCB, T11 FC-BB-5 FCoE Transit Switch, and FCoE-FC Gateway capabilities, with protocols like ETS and QCN for converged storage and lossless Ethernet in data centers.

What management options are available?

Management via web-based interface, CLI, and SNMP. Supported protocols include IEEE 802.1Q VLAN, STP/RSTP, LACP, LLDP, DCB, and FCoE for flexible Layer 2/3 control.

What are the power and environmental specs?

Dual redundant hot-swap power supplies with ~1,200W max consumption. Operates 0°C to 40°C, stores -40°C to 70°C, with front-to-back or back-to-front airflow for data center deployments.

What is the form factor and weight?

1U rack-mount (1.75 inches height) for 19-inch racks, weighing 30.75 lb (13.95 kg) with dual PSUs and fans. Fixed chassis with rear port connections optimizes space and cabling.

QFX3500-48S4Q-E - Juniper QFX3500-48S4Q-E 48 SFP+ 4 QSFP+ L3 Switch

Name: Juniper QFX3500-48S4Q-E 48 SFP+ 4 QSFP+ L3 Switch
Brand: Juniper
SKU: QFX3500-48S4Q-E
Price: 288 USD
Availability: InStock

QFX3500-48S4Q-E - Juniper QFX3500-48S4Q-E 48 SFP+ 4 QSFP+ L3 Switch | US IT Hardware

Product overview

The Juniper Networks QFX3500-48S4Q-E is a high-performance 1U rack-mount Layer 2/Layer 3 managed switch designed for data center environments. It features 48 x 10GbE SFP+ dual-mode ports configurable as 10GbE or 1GbE, and 4 x 40GbE QSFP+ ports that can break out to 4x10GbE. Delivering 1.28 Tbps switching capacity and 960 Mpps throughput, it supports cut-through and store-and-forward modes with low latency. Key capabilities include IEEE DCB, FCoE transit switching, and FCoE-FC gateway functionality. Management options encompass web-based interface, CLI, and SNMP, with protocols like 802.1Q VLAN, STP/RSTP, LACP, and LLDP. Dual redundant hot-swap power supplies ensure reliability, while front-to-back or back-to-front airflow suits hot/cold aisle deployments. Operating from 0°C to 40°C, it weighs 30.75 lb with dimensions for 19-inch racks. Ideal for top-of-rack in virtualized data centers, HPC, and cloud computing.

48x10GbE SFP+ + 4x40GbE QSFP+ ports, dual-mode flexibility
1.28 Tbps capacity, 960 Mpps throughput, low latency
Dual hot-swap PSUs, redundant fans for high availability
FCoE, DCB support for converged data center I/O
1U form factor, rear ports for top-of-rack efficiency
IEEE 802.1Q VLAN, LACP, STP for L2/L3 management

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	QFX3500-48S4Q-E
Brand	Juniper
Condition	Refurbished
Model	QFX3500-48S4Q-E
Product Line	Juniper QFX3500
Product Type	Managed Layer 2/Layer 3 Data Center Switch
Redundancy Features	Redundant power supplies; redundant fan modules; hot-swap capability
Standards Compliance	IEEE 802.1Q; IEEE 802.3ad; IEEE 802.1D; IEEE 802.1w; IEEE 802.1s; T11 FC-BB-5

Network & Communication

Throughput	960 Mpps (million packets per second)

Compatible systems

QFX3500-48S4Q-E is a standalone Layer 2/3 data center switch compatible with QFabric architecture deployments; no OS support required (network appliance)

Juniper Networks QFabric System
Model: QFX3500 QFabric Node
Form factor: 1U
Generation: QFabric Architecture
QFX3500-48S4Q-E functions as a QFabric Node in conjunction with QFX3100 QFabric Director and QFX3008-I QFabric Interconnect

Best for

Top-of-Rack
Provides high-density 48x10GbE ports and 1.28 Tbps capacity for connecting rack servers and storage in demanding data centers with rear-port design for easy cabling.
Virtualized Data Centers
Supports Virtual Chassis with QFX3600/EX4300/QFX5100, FCoE, and DCB for converged I/O in virtualized environments with low-latency wire-speed switching.
High-Performance Computing
Delivers 960 Mpps throughput and high MAC learning for HPC clusters, enabling ultra-low latency and jitter-free performance across 10/40GbE links.
Cloud Computing
Offers scalable L2/L3 features like LACP, VLANs, and redundant power/fans for reliable fabric edge in cloud infrastructures with investment protection via QSFP+ flexibility.

Details

Shipping, warranty & returns

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Switching Mode	Cut-through and store-and-forward

MAC Address Table	Supports high-density MAC learning for data center environments

Network Protocols	IEEE DCB (Data Center Bridging); T11 FC-BB-5 FCoE Transit Switch; FCoE-FC Gateway

Switching Capacity	1.28 Tbps

Supported Protocols	IEEE 802.1Q VLAN; STP/RSTP; LACP; LLDP; DCB; FCoE

Management Interface	Web-based management; CLI; SNMP

Max Wattage	Approximately 1,200W (typical operation)
Power Supplies	Dual redundant hot-swap power supplies

Physical Characteristics

Depth	Rear port connections; standard 19-inch rack depth
Height	1.75 inches (1U)
Weight	30.75 lb (13.95 kg) with dual power supplies and fan modules
Rack Units	1U
Form Factor	1U rack-mount
Chassis Type	Fixed configuration; no modular components
Mounting Type	19-inch rack mount

Airflow	Front-to-back or back-to-front (hot aisle/cold aisle deployment)
Storage Temperature	-40°C to 70°C
Operating Temperature	0°C to 40°C

Interface/Ports

USB Port	1 x USB port
SFP+ Ports	48 x 10GbE SFP+ dual-mode ports (configurable as 10GbE or 1GbE)
QSFP+ Ports	4 x 40GbE QSFP+ ports (each configurable as 4x10GbE or 40GbE)
Console Port	1 x console port
Management Ports	Dual management ports (copper and fiber versions)

Juniper QFX3500-48S4Q-E 48 SFP+ 4 QSFP+ L3 Switch