Description
The HPE Aruba Networking 4x100G FR QSFP-DD SN 2km SMF Transceiver (S3N91A) delivers high-performance, short-reach optical connectivity for next-generation data center and enterprise networks. Designed to support 400Gbps Ethernet across single-mode fiber (SMF), this transceiver features four 100G PAM4 channels and uses QSFP-DD SN form factor for maximum port density. With a maximum range of up to 2 km, it is ideal for high-speed interconnects in spine-leaf architectures, aggregation layers, or large campus backbones.
This transceiver supports advanced networking demands while offering efficient power usage and robust signal integrity, backed by HPE’s commitment to quality and reliability.
| Specification | Details |
|---|---|
| Product Name | HPE Aruba Networking 4x100G FR QSFP-DD SN 2km SMF Transceiver |
| Part Number | S3N91A |
| Transceiver Type | QSFP-DD SN |
| Max Data Rate | 4x 100Gbps (400Gbps aggregate) |
| Distance Supported | Up to 2 km (SMF) |
| Wavelength | Not specified (typically 1310 nm for FR optics) |
| Cable Type | Single-mode fiber (SMF) |
| Connector Type | SN connector |
| Form Factor | QSFP-DD |
| Dimensions | 1.3 cm (H) x 1.8 cm (W) x 15 cm (L) |
| Weight | 68 grams |
| Compatibility | HPE Aruba Networking switches and routers |
| Operating Temperature | Not specified |
| Warranty | Limited lifetime warranty |
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Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
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