SFP20K-CW1450 SFP module combines a 1450nm CWDM DFB laser with a sensitive PIN photo detector to support transmission rates up to 1.25Gbps. Capable of spanning up to 20km on single-mode fiber, it allows network administrators to execute real-time digital optical monitoring for proactive system health checks. The module guarantees steady operation across thermal conditions spanning 0°C to +70°C.
HPE Part Number
SFP20K-CW1450
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1450nm
Max Cable Distance
20km
Connector
Duplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-5 to 0dBm
RX Power
-26 to -1dBm
Receiver Sensitivity
-24dBm
Receiver Overload
-1dBm
EMC (Electromagnetic Compatibility)
Supported
DOM Support
Yes
Operating Temperature Range
0 to 70°C
Protocols
SFP MSA、SFF-8472
Key Features of HPE SFP20K-CW1450 Compatible LINK-PP 1.25G SFP
Designed to maximize existing fiber capacity, the HPE SFP20K-CW1450 Compatible LINK-PP leverages 1450nm CWDM technology to deliver reliable 1G data transmission over single-mode fiber. Supporting distances up to 20km via duplex LC connectors, it integrates digital optical monitoring (DOM) to provide efficient, cost-effective bandwidth expansion for enterprise and carrier access networks.
The transceiver features a hot-pluggable SFP footprint that allows seamless installation without shutting down active network devices. Its strict compliance with SFP MSA standards guarantees universal interoperability with a wide range of industry-standard networking hardware.
SFP20K-CW1450: 1 Gbps Connectivity for Edge Optical Access
Delivering a dedicated 1 Gbps data rate, this module provides reliable gigabit throughput for bandwidth-intensive edge routing. It enables operators to maintain stable, low-latency communication across enterprise campus backbones and local service access networks.
SFP20K-CW1450 Module with CWDM Technology for Fiber Efficiency
Coarse Wavelength Division Multiplexing (CWDM) allows multiple distinct optical signals to share a single fiber pair without mutual interference. This technology drastically reduces dark fiber leasing costs by maximizing existing cable capacity.
SFP20K-CW1450 Module with 1450nm Wavelength
The standardized 1450nm center wavelength enables precise channel routing within ITU-T G.694.2 CWDM grid topologies. Operating on this specific band prevents signal crosstalk when multiplexing several data channels onto one physical strand.
SFP20K-CW1450 Module Supporting 20km Transmission
Integrated DFB and PIN components drive reliable long-reach optical signals up to 20km over single-mode fiber. Such extended reach easily bridges regional aggregation switches and physically distant central offices.
SFP20K-CW1450 Module with Duplex LC Interface
An industry-standard duplex LC optical connector ensures precise mechanical locking and low insertion loss during cable insertion. This compact interface format enables high port density on switches and patch panels.
SFP20K-CW1450 Module with DOM for Real-Time Monitoring
Real-time digital optical monitoring (DOM) tracks critical operating parameters including Rx/Tx optical power, transceiver temperature, laser bias current, and supply voltage. Fully compatible with SFF-8472 digital diagnostics specifications, it gives system administrators early visibility into potential link failures.
The HPE SFP20K-CW1450 Compatible LINK-PP CWDM SFP module meets rigorous ISO 9001, CE, RoHS, and FCC certifications, ensuring excellent build quality, reliable electromagnetic compatibility, and full adherence to global environmental standards.
Every CWDM module undergoes strict optical, electrical, and thermal inspection before leaving the factory floor. This comprehensive screening process filters out defects to maintain stable operation in real-world network deployments.
SFP20K-CW1450 Quality Certifications
Holding these recognized industry approvals confirms that the transceiver satisfies strict safety and performance benchmarks. Network engineers can deploy this optical module with total confidence in its long-term operational stability.
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.
SFP20K-CW1450 Certified for Reliable Host-Device Compatibility
Extensive switch and router testing validates that the module connects seamlessly across diverse vendor hardware. This proven hardware interoperability eliminates link errors and prevents unexpected downtime during switch integration.
Rigorous Testing Ensures Reliable SFP Performance
HPE SFP20K-CW1450 Compatible LINK-PP 1G CWDM SFP undergoes multi-stage quality validation to guarantee flawless optical link stability and network uptime. To see how each module meets industry standards, visit the LINK-PP Test Support Center.
Optical Spectrum Test
Verify central wavelength alignment to prevent channel optical interference.
Eye Pattern Test
Measure transmitter signal clarity to ensure low pulse distortion.
Bit Error Rate Test
Evaluate packet transmission accuracy over long single-mode fiber links.
Temperature Test
Validate thermal stability across full commercial operating temperature ranges.
Product Shipping for HPE SFP20K-CW1450 Compatible LINK-PP 1.25G SFP
LINK-PP ensures that every SFP20K-CW1450 CWDM SFP module is securely packed and handled to prevent damage during transit. Our streamlined fulfillment system guarantees safe and timely delivery to customers worldwide.
Anti-Static Protective Packaging
Shield sensitive optical components from harmful electrostatic discharge damage.
Shock-Resistant Transport Protection
Cushion inner optical assemblies against severe vibrations and drops.
Fast Order Processing and Dispatch
Expedite warehouse fulfillment to ensure rapid dispatch for orders.
Global Logistics and International Delivery
Partner with reliable international carriers for safe global shipments.
Deploying the SFP20K-CW1450 involves hot-swapping the module into an active switch and connecting single-mode fiber via duplex LC connector. Tailored for edge optical access, it multiplexes 1450nm signals into existing CWDM infrastructure while real-time DOM monitoring ensures reliable link operation.
SFP20K-CW1450 Technical Support
LINK-PP offers end-to-end technical support, from pre-sales consultation to post-deployment assistance, ensuring smooth integration and reliable network performance.
Pre-Sales Technical Consultation
Professional guidance to help you select the optimal SFP20K-CW1450 module for your network design and application needs.
Compatibility Verification Support
Validated compatibility with LINK-PP switches and other mainstream networking platforms for seamless deployment.
Deployment & Installation Assistance
Comprehensive step-by-step guidance for installation, configuration, and initial setup, ensuring accurate deployment and reliable, stable operation from the start.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle, delivering long-term stability for enterprise and carrier-grade networks.
A:
Yes, in most cases it handles that comfortably. This module provides an optical power budget of roughly 19 dB (launching between -5 and 0 dBm, with a -24 dBm receiver sensitivity). Typical single-mode fiber loses about 0.35 to 0.4 dB per kilometer around 1450nm, so an 18km fiber run consumes around 7 dB. Adding 3 to 6 dB of total multiplexer and patch loss still leaves you with around 6 dB of healthy operating margin. By
admin on
2026-03-26
A:
You can use any standard duplex LC single-mode fiber (OS2). However, 1450nm sits near the "water peak" region of optical glass. If your network runs on modern low-water-peak single-mode fiber (ITU-T G.652.D), attenuation is low and 20km is easily reachable. If you are patching into a very old legacy fiber plant, attenuation at 1450nm can be slightly higher than at 1550nm, so it is always smart to check your total link loss with the built-in DOM before commissioning. By
admin on
2025-12-06
A:
The DFB laser produces a much narrower, single-frequency light beam compared to a standard FP laser. In a CWDM network where multiple channels are packed closely together, the narrow spectral width of a DFB laser prevents the 1450nm light from drifting or bleeding into adjacent channels. It also reduces chromatic dispersion over the 20km single-mode run, ensuring your 1.25Gbps signal stays crisp and error-free over long distances. By
admin on
2025-04-04
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491790
461806
A***l
Argentina
Verified
Purchase
5 .0
2026-05-05
Put this unit to work inside an outdoor roadside cabinet for a remote camera feed. Even when the enclosure warmed up during hot sunny afternoons between 15°C and 42°C, the optic stayed around 53°C, which is well inside the safe 0 to 70°C rating. The metal casing keeps out electrical noise from nearby power units, keeping our 1.25G link completely clean and running smoothly across 14km of fiber. ;)
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491790
461820
E***e
Turkey
Verified
Purchase
5 .0
2026-04-16
Nice option for refreshing 1G links without rebuilding the whole CWDM plan. DFB output and PIN receive performance were stable on our existing SMF route. It is especially useful where a short-reach optic does not leave enough margin.
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491790
461808
E***z
Morocco
Verified
Purchase
5 .0
2026-03-31
Set up these transceivers to bridge two municipal offices separated by roughly 13km of outdoor single-mode fiber. We needed a clean separate wavelength so we could split emergency lines from routine office traffic over the same glass pair. This 1450nm CWDM 1G SFP module cleared up our crosstalk concerns entirely and carried continuous line-rate data without a single transmission glitch. An easy and practical way to get more out of existing fiber lines.
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491790
461809
G***g
Singapore
Verified
Purchase
5 .0
2026-02-07
As a field network technician, finding standard-compliant optics with accurate channel wavelengths without paying huge brand premiums is a huge win. This module sits right on the 1450nm wavelength grid and pairs up nicely with our older multiplexer gear across an 11km span. Standard MSA compliance makes it easy to interchange between different aggregation setups without headaches. Will definitely pick up another batch for future node expansions. =)
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491790
461822
R***s
Iran, Islamic Republic of
Verified
Purchase
5 .0
2026-01-26
Perfect solution for our remote backup site. The 20km link budget easily handles our 12km run through multiple patch panels and a passive mux. DDM reporting through our monitoring stack confirmed rock-solid stability from day one.
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491790
461816
A***e
United Arab Emirates
Verified
Purchase
4 .0
2026-01-05
Replaced an aging OEM optic with this LS-CW451G-20C CWDM module. Real-time temperature monitoring hovers around 38°C inside a crowded server room switch stack. Receiver sensitivity is great with a -24dBm received signal. Very impressed with the build quality. ;)
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491790
461812
S***n
United Arab Emirates
Verified
Purchase
4 .0
2025-11-24
Everything arrived working, and the DOM readings looked normal. I would just prefer a little more cushioning around the individual SFP boxes for long-distance delivery.
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491790
461810
C***z
Nepal
Verified
Purchase
5 .0
2025-10-31
We used these 1G 1450nm CWDM SFP transceivers to light up a secondary connection through our passive CWDM multiplexer. The DFB laser output is very clean on the spectrum analyzer, sitting accurately right at 1450nm. Smooth installation overall. :D
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491790
461807
M***y
Taiwan, Province of China
Verified
Purchase
5 .0
2025-09-03
We used this 20km 1450nm CWDM SFP module to upgrade an uplink between two multi-tenant buildings. The run goes through several patch panels and a passive filter, but the optical power came through nicely with a clear, steady signal that stayed far away from the receiver limit. It linked up immediately on our switches without needing special command tweaks or extra setup steps. Truly dependable hardware for everyday networking. :D
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491790
461821
N***k
Sweden
Verified
Purchase
5 .0
2025-08-26
Put several of these units through our test bench across different switches before deploying them out in the field. Every single module showed very uniform transmit power around -2 dBm, sitting comfortably above the minimum baseline. The receiver also tolerated short patch tests with an attenuator without any signal overload issues. Consistent manufacturing quality from piece to piece, which makes bulk rollouts much easier. :-D
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491790
461824
L***l
Australia
Verified
Purchase
5 .0
2025-07-30
We used this 1450nm SFP module on an 18km single-mode fiber line connecting our main office to a remote backup site. With our CWDM multiplexers in place, the optical link loss came out right around 16 dB. The transmitter launched at -1.8 dBm, and our receiver showed -18.3 dBm, which leaves plenty of safety headroom above the receiver limit. Internal temperature stayed super steady at 41°C during our busiest work hours. It is an honest, dependable fiber optic that just works. :)
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491790
461818
S***e
Thailand
Verified
Purchase
5 .0
2025-06-09
Ordered a batch of these CWDM SFP modules for connecting remote surveillance NVRs across municipal fiber. Even inside ventilated outdoor street enclosures reaching 48°C ambient, the transceivers operated stably well within their 0 to 70°C rating. =)
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491790
461815
C***z
South Africa
Verified
Purchase
5 .0
2025-05-13
Connected this module to link our offsite backup server to the main server room over a 16km single-mode run. The duplex LC connector clicked in securely, and all the live power readings showed up on our monitoring system right away. We pushed large multi-gigabyte file backups across the link for three consecutive days at full Gigabit speed without any slowdowns or frame drops. Great everyday value and rock-solid link stability.
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491790
461823
A***l
Austria
Verified
Purchase
4 .0
2025-04-29
Added this to our core router for an offsite backup link. SFF-8472 compliance is genuine; RouterOS pulls voltage, bias current, and optical levels accurately. Handles full Gigabit throughput continuously with no dropped packets.
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491790
461813
E***t
Macao
Verified
Purchase
5 .0
2025-02-01
We were running low on spare fiber across our business campus, so we set up multiple channels over one single-mode strand. This 1450nm SFP optical module slid smoothly into our distribution switch, and the built-in diagnostic monitoring worked straight out of the box. Signal readings on our network dashboard matched our handheld power meter perfectly. After a month of non-stop daily traffic, we have seen zero dropped packets, and the metal pull latch feels solid and well made.
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491790
461819
E***g
Finland
Verified
Purchase
5 .0
2025-01-22
Needed a reliable 1450nm CWDM channel to expand backhaul capacity on an existing duplex LC pair without trenching new fiber. Plugged into our switches, accepted without vendor lock warnings, and negotiated 1.25Gbps line rate immediately.
Germany · English · EUR
