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841716-B21
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QSFP+ 40GB BI-DIRECTIONAL XCVR PL=SI
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Name:
841716-B21
- Description:
- QSFP+ 40GB BI-DIRECTIONAL XCVR PL=SI
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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841716-B21 Overview
841716-B21 is a high-performance SFP+ transceiver module engineered to deliver 10G data rate connectivity for short-range applications. Featuring LC connectors and optimized for multi-mode fiber infrastructure, this 10GBASE-SR transceiver supports Ethernet protocols within compact form factor designs ideal for dense data center and enterprise network deployments.
Designed for robust performance in dynamic networking environments, the 841716-B21 meets strict operational standards while ensuring seamless compatibility with leading network platforms such as Cisco, Juniper, Huawei, and Arista. Its reliable design, defined physical dimensions, and efficient power usage make it a preferred choice for telecom and data center applications requiring swift and secure optical transmission.
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841716-B21 Specifications
- Product Type
- Transceiver
- Brand
- Hpe
- Form Factor
- SFP+
- Data Rate
- 10G
- Connector Type
- LC
- Wavelength
- 850 nm
- Transmission Distance
- Short-Range
- Fiber Type
- Multi-mode
- Max Distance
- 300 meters
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Huawei / Arista
- Product Name
- 841716-B21 10GBASE-SR SFP+ Transceiver
841716-B21 Use Case
Top-of-Rack 40 GbE Aggregation in Enterprise Data Centers
In a global finance firm’s flagship data center, network architects consolidated four 10 GbE uplinks from each Top-of-Rack (ToR) switch into a single 40 GbE trunk using the 841716-B21 QSFP+ 40 GB Bi-Directional Transceiver. This bi-directional module leverages existing duplex multimode fiber to halve cabling complexity and cost. Outcome: 75% reduction in fiber plant expenses, simplified port management on core switches, and a sustained 40 GbE aggregate throughput with full vendor support and rigorous testing for financial-grade SLA compliance.
High-Performance Computing Cluster Interconnect for Scientific Research
A university supercomputing center deployed the 841716-B21 QSFP+ transceivers to link GPU-accelerated compute nodes over short-reach multimode fiber. By converting each 40 GbE port into a dual 20 Gbps bidirectional channel, researchers achieved low-latency, high-bandwidth inter-node communication for large-scale simulations. Outcome: 30% faster job completion on MPI workloads, reduced power consumption per rack by 15 W per port, and seamless integration with existing HPE networking infrastructure for predictable cluster scaling.
Cost-Effective Campus Backbone Upgrade with Reused Fiber Plant
A multinational university leveraged 841716-B21 QSFP+ 40 GB Bi-Directional Transceivers to modernize its campus backbone over legacy OM3 multimode fiber. Without running new cabling, IT upgraded six key buildings from 10 GbE to 40 GbE connectivity by using four-pair bidirectional MHz-graded optics. Outcome: Zero civil-works downtime, 4× per-link capacity increase, and a 60% savings in capital and labor compared to a new fiber install — all while meeting academic network reliability targets.
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Product Comparison Table 
| 841716-B21 |  AP783A |  C8R25B |  QK724A |  AW537A | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP+ | SFP+ | SFP28 | SFP+ | CFP2 |
| Data Rate | 10G | 10G | 25G | 10G | 100G |
| Connector Type | LC | LC | LC | LC | LC |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Short-Range | Long-Range |
| Fiber Type | Multi-mode | Multi-mode | Multi-mode | Single-mode | Single-mode |
| Max Distance | 300 meters | 300 meters | 100 meters | 80km | 80km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | 841716-B21 10GBASE-SR SFP+ Transceiver | AP783A 10GBASE SFP+ Optical Transceiver | C8R25B 25G SFP28 Transceiver | QK724A SFP+ Optical Transceiver | AW537A 100G CFP2 Transceiver Module |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
B
Brandon Lee
5
Bi directional QSFP+ transceiver simplified fiber usage.
S
Shahbaz Khan
4
Stable 40Gb connectivity.
A
Alessandro Conti
4
Good optics performance.
M
Mads Kristensen
4
Easy deployment.
P
Peter Lawson
4
Satisfied with results.
Questions & Answers
What is the data transfer rate of the QSFP+ 40GB Bi-Directional XCVR PL=SI?
This transceiver delivers up to 40 Gbps aggregated bandwidth, providing two simultaneous 20 Gbps channels over a single fiber link for high-performance data transmission.
Which fiber type is compatible with the QSFP+ 40GB Bi-Directional XCVR PL=SI?
It is compatible with single-mode fiber (SMF), enabling long-distance connectivity with low signal loss and optimal performance.
What is the maximum transmission distance for this bi-directional QSFP+ transceiver?
When used with G.652 compliant single-mode fiber, it supports link distances up to 10 km at full 40 Gbps throughput.
How does the bi-directional technology work in this QSFP+ module?
Bi-directional operation uses wavelength-division multiplexing (WDM) to send and receive data over a single fiber by assigning different wavelengths for each direction.
What form factor does the 841716-B21 QSFP+ transceiver use?
It uses the QSFP+ (Quad Small Form-Factor Pluggable Plus) form factor, supporting hot-swappable insertion in QSFP+ ports.
Is the QSFP+ 40GB Bi-Directional XCVR PL=SI hot-swappable?
Yes. The module supports hot-plug capability, allowing you to install or remove it without powering down the host system.
What wavelength does the PL=SI QSFP+ 40GB XCVR operate on?
It operates on dual wavelengths, typically 1271 nm for TX and 1331 nm for RX, supporting bidirectional data over a single fiber pair.
What is the typical power consumption of this QSFP+ module?
The module consumes up to 1.5 Watts in full operation, ensuring energy-efficient performance in high-density environments.
Which devices are compatible with SKU 841716-B21?
It is compatible with all QSFP+ ports on switches, routers, and servers from leading manufacturers that support 40 Gbps optical transceivers.
What operating temperature range does the QSFP+ 40GB Bi-Directional XCVR support?
This transceiver is rated for an operational temperature range from 0 °C to 70 °C (32 °F to 158 °F), suitable for standard data-center environments.
What certifications and standards does this QSFP+ module meet?
It complies with IEEE 802.3ba, RoHS, and Telcordia GR-468 CORE for reliability, performance, and environmental safety.
How do I install the QSFP+ 40GB Bi-Directional XCVR PL=SI?
Align the module with the QSFP+ port, gently insert until the latch engages, and connect your single-mode duplex LC patch cable to the TX/RX ports.
Can I use this QSFP+ transceiver with multi-mode fiber?
No. This bi-directional QSFP+ module is designed exclusively for single-mode fiber and will not operate on multi-mode cable.
What are the typical use cases for the 40GB bi-directional QSFP+ transceiver?
Ideal for data-center interconnects, enterprise backbone links, and high-performance computing clusters requiring efficient single-fiber deployment.
How can I verify the performance of the QSFP+ 40GB Bi-Directional XCVR?
Use SFP diagnostic functions via your switch or host interface to monitor real-time optical power, temperature, and link status.
What warranty coverage is offered for SKU 841716-B21?
This transceiver includes a one-year limited warranty covering defects in materials and workmanship under normal operating conditions.
Does the QSFP+ 40GB Bi-Directional module support digital diagnostics (DDM)?
Yes. It features IEEE-compliant digital diagnostics monitoring for real-time reporting of optical and electrical parameters.