The FS DW-SFP10G40-21-I Compatible LINK-PP 10G SFP+ module provides high-speed data transmission up to 10.7Gbps over single-mode fiber (SMF). It supports communication distances of up to 40km and operates at an exact DWDM wavelength of 1560.60nm for reliable, stable performance.
FS Part Number
DW-SFP10G40-21-I
Vendor Name
LINK-PP
Form Factor
SFP+
Max Data Rate
10.7Gbps
Wavelength
1560.60nm
Max Cable Distance
40km
Connector
Duplex LC
Media
SMF
Transmitter Type
EML
Receiver Type
PIN
TX Power
-1 to +2dBm
RX Power
-16 to -1dBm
Receiver Sensitivity
<-15.5dBm
Receiver Overload
0.5dBm
Operating Temperature Range
-40 to 85°C
Protocols
SFP+ MSA Compliant, CPRI, eCPRI
Key Features of FS DW-SFP10G40-21-I Compatible LINK-PP 10.7G SFP+
Built for demanding next-generation networks, the FS DW-SFP10G40-21-I Compatible LINK-PP offers robust, long-distance 10G performance with transmission distances of up to 40km over SMF. Whether deployed in metro aggregation, data centers, backbone links, or DWDM transport networks, it ensures consistent, high-speed connectivity that scales effortlessly with your network growth.
This advanced optical module integrates a DWDM EML laser transmitter, a PIN receiver with TIA, and a smart MCU-based control unit. Together, they ensure powerful optical output, minimal signal loss, and smooth, high-speed data transmission, delivering connectivity you can count on.
DW-SFP10G40-21-I: 10 Gbps Connectivity for Next-generation Networks
The FS DW-SFP10G40-21-I Compatible LINK-PP offers low-latency, reliable transmission for superior 10G Ethernet performance, which is perfect for organizations seeking a future-ready foundation for high-bandwidth networks and data-intensive operations.
DW-SFP10G40-21-I Module with DWDM Technology Maximizes Fiber Capacity
Using Dense Wavelength Division Multiplexing (DWDM), this DWDM SFP+ module enables multiple data channels to travel simultaneously on a single fiber, resulting in significantly enhanced fiber capacity, reduced infrastructure strain, and greater connectivity efficiency.
DW-SFP10G40-21-I Module with 1560.60nm Wavelength
With a targeted wavelength of 1560.60nm, the FS DW-SFP10G40-21-I Compatible LINK-PP transceiver provides low crosstalk and precise wavelength control, enabling dense multiplexing and scalable optical network expansion.
The FS DW-SFP10G40-21-I Compatible LINK-PP 10G SFP+ module delivers strong performance across long distances with up to 40 km transmission over single-mode fiber. It is perfect for metro, enterprise, and carrier-grade network applications, where seamless long-range data flow is essential.
DW-SFP10G40-21-I Module with Duplex LC Interface
With a standard duplex LC interface, installation is fast and secure. It is also universally compatible, allowing for plug-and-play integration with most fiber optic systems.
DW-SFP10G40-21-I Module with DOM for Real-Time Monitoring
The built-in Digital Optical Monitoring (DOM) feature provides real-time data on important metrics like temperature, voltage, and optical power, helping ensure system uptime and simplify maintenance.
Each module is produced under ISO 9001 quality control and certified for CE, RoHS, and FCC Compliance, affirming LINK-PP’s commitment to safety, performance, and environmental standards.
Our multi-step quality testing process ensures that each module meets or exceeds international standards for performance, reliability, and durability.
DW-SFP10G40-21-I Quality Certifications
Each LINK-PP module meets globally recognized standards, including ISO 9001 for quality assurance, CE for product safety, RoHS for environmental responsibility, and FCC for electromagnetic compliance.
This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
ISO/IEC 27001 is an international standard for managing and processing information security. This standard is jointly developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It sets out requirements for establishing, implementing, maintaining, and continually improving an information security management system (ISMS). Ensuring the confidentiality, integrity, and availability of organizational information assets, obtaining an ISO 27001 certificate means that the enterprise has passed the audit conducted by a certification body, proving that its information security management system has met the requirements of the international standard. Please contact us to learn more.
This product is in conformity with ISO14001.It is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability. Please contact us to learn more.
ISO 45001 is a global standard that sets out the requirements for an occupational health and safety management system (OH&SMS).
REACH is a European Union regulation concerning the Registration, Evaluation, Authorization and Restriction of Chemicals. It came into force on 1st June 2007 and replaced a number of European Directives and Regulations with a single system. The regulation aims to protect human health and environmental safety, maintain and improve the competitiveness of the EU chemical industry, and develop innovative capabilities for non-toxic and harmless compounds to prevent market fragmentation, increase the transparency of the use of chemicals, promote non-animal experiments, and pursue sustainable social development.Please contact us to learn more.
This product meets the applicable requirements of Directive (EU) 2015/863 of RoHS. It restricts the use of 10 hazardous materials in the manufacture of various types of electronic and electrical equipment: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and four different phthalates. Please contact us to learn more.
This product fully accords with the FCC, which aims to manage the radio wave and magnetic fields more reasonably. Please contact us to learn more.
CB is an international system operated by IECEE. This product is based on IEC standards for testing the safety performance of electrical products. Please contact us to learn more.
This product fully accords with UKCA (UK Conformity Assessed) certificate, which signifies that it meets all relevant quality standards as well as health and safety requirements. Please contact us to learn more.
UL certification is a non-mandatory certification in the United States,mainly testing and certification of product safety performance.Its ultimate purpose is to obtain products with a fairly safe level for the market,and to contribute to ensuring human health and property safety.Please contact us to learn more.
DW-SFP10G40-21-I Certified for Reliable Host-Device Compatibility
Fully validated for LINK-PP-compatible switches, routers, and optical systems, guaranteeing seamless plug-and-play interoperability and host reliability.
Every unit is subjected to multiple inspection processes to confirm durability and performance consistency. Learn more at the LINK-PP Test Support Center.
Optical Spectrum Test
Verifies wavelength precision.
Eye Pattern Test
Ensures clear, distortion-free signals.
Bit Error Rate Test
Detects and resolves transmission errors.
Temperature Test
Confirms reliability under extreme conditions.
Product Shipping for FS DW-SFP10G40-21-I Compatible LINK-PP 10.7G SFP+
Every LINK-PP module is shipped with care through trusted transportation logistics networks to ensure it arrives securely and ready for use.
Empower your network with smooth 10G DWDM transmission of up to 40km. This is ideal for data centers, metro network aggregation, telecommunications carriers, enterprise backbones, and other applications requiring scalable, long-distance, high-throughput connectivity.
DW-SFP10G40-21-I Technical Support
LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.
Pre-Sales Technical Consultation
Professional technical guidance to help customers select the most suitable DW-SFP10G40-21-I modules based on network architecture and application requirements.
Compatibility Verification Support
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Deployment & Installation Assistance
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.
A:
The product page lists Cisco and Juniper among the compatible platforms, along with Arista, Brocade, Ciena, Dell, Extreme, H3C, MRV, Netgear, FS, and generic systems. For a specific switch model, it is still best to verify the exact host compatibility before ordering. By
admin on
2025-12-18
A:
Yes. The product specifications list SFP+ MSA compliance, CPRI, and eCPRI. The module supports up to 10.7Gbps and is designed for high-speed transmission over single-mode fiber. By
admin on
2025-07-27
A:
Yes. The LS-DW2110-40I is specified for up to 40km over SMF and uses a Duplex LC interface. Actual reach still depends on the fiber plant, optical loss, connectors, splices, and the DWDM system design. By
admin on
2025-04-17
A:
The module operates at 1560.60nm and is identified as DWDM C21. It is intended for use within a DWDM wavelength plan where the C21 channel is required. By
admin on
2025-02-11
A:
Yes. The specified operating temperature is -40 to 85°C, making the industrial version suitable for applications with wider temperature variation, including remote and outdoor network cabinets. Actual deployment conditions should still be checked against the complete system requirements. By
admin on
2024-05-28
Please write comments with more than three
character.
495288
440169
G***s
Germany
Verified
Purchase
5 .0
2026-03-16
The 40km DWDM SFP+ modules were installed as part of a campus backbone expansion. We had existing SMF cabling and a planned C21 channel, so keeping the same fiber infrastructure was important. The 1560.60nm wavelength matched our design, while the 10.7Gbps maximum data rate supports our 10G Ethernet traffic comfortably. We also checked TX/RX power and receiver sensitivity during commissioning. So far, these have been reliable workhorses.
Please write comments with more than three
character.
495288
440183
C***z
Taiwan, Province of China
Verified
Purchase
5 .0
2026-01-18
Good fit for our outdoor network cabinets. The -40 to 85°C operating range was one of the reasons we selected the industrial version. We ran it through a temperature test before deployment and the link stayed stable.
Please write comments with more than three
character.
495288
440174
M***s
Sweden
Verified
Purchase
4 .0
2026-01-03
Price is reasonable for a 40km industrial DWDM SFP+. We used it on an SMF campus link and performance has been good. The only thing I would improve is having clearer labeling on the individual packages for larger orders. The modules themselves have been reliable. :)
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character.
495288
440185
R***s
United Arab Emirates
Verified
Purchase
5 .0
2025-12-13
This was part of a multi-vendor compatibility test involving Cisco and Arista switches. The module was recognized correctly and the 10G SFP+ link negotiated without any strange behavior. We also checked optical readings during burn-in. Nice option for keeping a DWDM rollout within budget.
Please write comments with more than three
character.
495288
440176
E***r
Singapore
Verified
Purchase
5 .0
2025-10-28
Used these for a small batch deployment between aggregation switches and remote cabinets. The 40km single-mode fiber rating gives us plenty of margin for our actual route.
Please write comments with more than three
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495288
440171
J***s
South Africa
Verified
Purchase
5 .0
2025-09-14
We used the LS-DW2110-40I for a 40km fiber backhaul between an access site and the main network room. The 10.7Gbps capability gives enough headroom for our 10G service, while the Duplex LC interface works with our existing patch panels. No complaints so far. :-)
Please write comments with more than three
character.
495288
440175
A***s
Cambodia
Verified
Purchase
5 .0
2025-08-12
Used in a base-station backhaul project where the fiber route is exposed to wider temperature swings than our indoor racks. The -40 to 85°C specification made the industrial version a better choice for us. After installation, we monitored the optical levels and temperature through the switch interface. Everything has been stable.
Please write comments with more than three
character.
495288
440178
E***s
Indonesia
Verified
Purchase
5 .0
2025-07-27
Shipping took a little longer than expected, but the modules arrived safely and the optics themselves have performed well. Packaging could have been a bit tighter, but there was no damage. Once installed, the 10G link came up normally and the C21 wavelength worked with our DWDM setup. Four stars mainly for the delivery experience.
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character.
495288
440184
K***t
New Zealand
Verified
Purchase
5 .0
2025-07-14
Our team installed a batch in remote telecom cabinets for 10G transport. The modules are rated for -40 to 85°C, which was important because these cabinets are not maintained like our indoor server rooms. We verified the EML transmitter and PIN receiver behavior through our optical test process, then monitored the links after turn-up. Performance has been consistent.
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character.
495288
440181
J***s
South Africa
Verified
Purchase
5 .0
2025-03-21
Our telecom team needed a DWDM C21 optic for a long campus connection without changing the existing SMF plant. This module matched the 1560.60nm requirement and gave us a clean 10G link over the route. Pretty straightforward install.
Please write comments with more than three
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495288
440163
A***n
Lithuania
Verified
Purchase
5 .0
2025-01-13
We deployed 12 of these across a campus fiber network connecting several remote buildings to the core. All links are running at 10G over single-mode fiber, with C21 DWDM optics on the planned channel. Installation was simple with the Duplex LC connectors, and the modules have remained stable under continuous traffic. Good practical choice for a larger rollout.
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495288
440165
J***l
Australia
Verified
Purchase
5 .0
2024-11-02
We were replacing a few aging long-haul 10G optics in a mixed-vendor network. These worked well as OEM-compatible modules and saved us from buying the higher-priced branded units. The C21 wavelength matched our DWDM plan, and the 1560.60nm channel stayed clean during testing. Very happy with the result. ;)
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495288
440162
A***g
Maldives
Verified
Purchase
5 .0
2024-10-19
We bought this as an OEM-compatible 10G SFP+ option for a mixed-vendor lab. Tested it across Cisco, Juniper, and Dell gear during the rollout, and the module behaved as expected. DOM readings were useful during commissioning too.
Please write comments with more than three
character.
495288
440160
R***n
Lithuania
Verified
Purchase
5 .0
2024-06-03
We ordered a small batch first for a multi-brand interoperability test. Our lab setup included Cisco, Juniper, Arista, and H3C equipment, plus standard single-mode fiber and DWDM components. The LS-DW2110-40I was detected correctly, delivered a stable 10G service, and gave us the optical monitoring information we needed during validation. After the test passed, we used the same model for the production rollout.
Please write comments with more than three
character.
495288
440170
N***n
Nepal
Verified
Purchase
5 .0
2024-03-21
For a network refresh, we needed a 40km DWDM SFP+ optic that could work across multiple switch brands. We tested these against Cisco, Juniper, Dell, and Arista equipment before placing the full order. The compatibility results were good, and the 10G links passed our traffic and stability checks. The industrial temperature range also helped for our less-controlled equipment rooms. =)
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character.
495288
440180
C***u
Maldives
Verified
Purchase
5 .0
2024-03-17
Live chat was prompt and very informative of specifics guiding me and letting to choose the best options. Ordering was easy, check out was Fast.. Looking forward to receiving product.
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