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LINK-PP LS-MM8525-S3C 25G SFP28 850nm 300m Duplex LC/UPC DOM MMF Optical Transceiver Module
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LINK-PP LS-MM8525-S3C 25G SFP28 850nm 300m Duplex LC/UPC DOM MMF Optical Transceiver Module

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Product summary

Product
LINK-PP LS-MM8525-S3C 25G SFP28 850nm 300m Duplex LC/UPC DOM MMF Optical Transceiver Module
SKU
181540
P/N
LS-MM8525-S3C
Price
$ 19.8
Stock
1040 in Stock
Sold
970
For Order Over $1000 Get $15.00 Off , Code: Linkpp15
For Order Over $3000 Get $50.00 Off , Code: Linkpp50
For Order Over $5000 Get $100.00 Off , Code: Linkpp100
New Users: $10 Coupon for Orders , Code: linkpp2610
43 Reviews
4 Questions
970 Sold
$ 19.8 0% OFF )
Free shipping. For wholesale pricing, please contact us directly.
Qty (pcs) :
Unit Price :
1
$ 19.8
100
$ 18.81
1000
$ 18.216
3000
$ 17.622
6000
$ 17.028
Manufacture: LINK-PP P/N: LS-MM8525-S3C SKU: 181540
Shipping:
Free Shipping
to United States via FedEx
Estimated delivery time : 3 - 10 days.
5-Year Warranty 30-Day Returns 30-Day Exchange
Warranty
  • Providing industry-leading 5-year warranty.
  • Read the table for details of all products' warranty.
Returns & Exchange
  • Refunds will be received about 5 business days after the receipt of returned items.
  • Items in stock for replacement can be shipped within 1 business day.
  • Read the full return policy for details.
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LINK-PP LS-MM8525-S3C 25G SFP28 Specifications

LINK-PP LS-MM8525-S3C describes a 25G SFP28 transceiver compliant with the 25GBASE-ESR standard, utilizing 850nm VCSEL technology, a Duplex LC/UPC optical interface, and built-in DOM capabilities, while enabling reliable data transmission across 300m on OM3 MMF.

LINK-PP Part Number LS-MM8525-S3C Vendor Name LINK-PP
Form Factor SFP28 Max Data Rate 25.78125Gbps
Wavelength 850nm Max Cable Distance 300m
Connector Duplex LC Media MMF
Transmitter Type VCSEL Receiver Type

PIN

TX Power -6 to 3dBm RX Power -11 to 3dBm
Receiver Sensitivity -10.3dBm Receiver Overload 2dBm
DOM Supported Operating Temperature range

0°C to +70°C

Protocols SFP28 MSA Compliant, SFF-8472, SFF-8024, SFF-8431, SFF-8432 Warranty 5 Years

Key Features of LINK-PP LS-MM8525-S3C 25G SFP28

LINK-PP LS-MM8525-S3C provides 25Gbps Ethernet over 850nm multi-mode fibre, with reach extending to 300m on OM3. It also incorporates a digital diagnostic interface and an MCU for parameter logging, making it a practical choice for leaf-spine aggregation and top-of-rack interconnections.

LINK-PP LS-MM8525-S3C 25G SFP28 Optical Module

This transceiver is built with three main components: an 850nm VCSEL laser transmitter, a PIN photodiode with an integrated TIA, and an MCU control unit. These components work together to ensure accurate signal transmission and reception. The design supports reliable optical performance and stable operation.

LS-MM8525-S3C: 25 Gbps Connectivity for Leaf-Spine Aggregation

It enables 25Gbps data links commonly used in leaf-spine network architectures. The module supports fast and efficient data exchange between switches. It is suitable for short-distance high-density network connections.

LS-MM8525-S3C Module with 850nm Wavelength

The module operates at 850nm, a wavelength optimised for multi-mode fibre transmission using VCSEL sources. This wavelength ensures low modal dispersion and efficient coupling into OM3 fibre types. It is the standard choice for 25G short-range optical links.

LS-MM8525-S3C Module Supporting 300m Transmission

It supports transmission distances of up to 300m over OM3 multimode fiber, making it well suited for short-reach links in data center and enterprise network environments. It provides a reliable option for typical switch-to-switch or server connectivity where stable performance and efficient cabling are important.

LS-MM8525-S3C Module with Duplex LC/UPC Interface

The module uses a Duplex LC/UPC optical interface for reliable fiber connectivity. This interface allows simple installation and stable signal transmission. It is widely adopted in SFP28 optical modules.

LS-MM8525-S3C Module with DOM for Real-Time Monitoring

Built-in DOM allows real-time tracking of key operating parameters such as optical output power, received power, laser bias current, and module temperature. The MCU continuously updates these values via the I²C interface, enabling the host system to monitor link health and predict potential failures. 


LINK-PP LS-MM8525-S3C 25G SFP28 Certification

LINK-PP LS-MM8525-S3C meets key industry standards and is certified with ISO 9001, CE, RoHS, and FCC to ensure product quality and compliance.

Optical Transceivers Testing

The module undergoes a comprehensive testing program that includes optical parameter validation and bit-error-rate verification.

LS-MM8525-S3C Quality Certifications

It holds multiple quality certifications that attest to its manufacturing process consistency and product reliability.

LS-MM8525-S3C Certified for Reliable Host-Device Compatibility

The module has been certified for compatibility with a wide range of host devices, ensuring stable 25G Ethernet connections without interoperability issues.


Rigorous Testing Ensures Reliable SFP28 Performance

Comprehensive validation checks confirm stable transmission and consistent optical behavior across operating conditions. For additional details, visit the LINK-PP Test Support Center.

Optical

Optical Spectrum Test

Verify wavelength range and optical signal distribution accuracy.

Optical

Eye Pattern Test

Inspect eye diagram clarity to assess signal quality.

Optical

Bit Error Rate Test

Check error rates to ensure dependable data transmission.

Optical

Temperature Test

Assess performance stability across different temperature ranges.


Product Shipping for LINK-PP LS-MM8525-S3C 25G SFP28

Orders are processed quickly to ensure timely shipment and delivery. Reliable logistics services support safe and efficient global distribution.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Protect modules from static damage during handling and transit.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Reduce impact risks during transportation with secure packaging.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Ensure quick order handling and timely shipment dispatch.

Global Logistics and International Delivery

Global Logistics and International Delivery

Support worldwide shipping with reliable delivery services.

LINK-PP LS-MM8525-S3C 25G SFP28 Usage Demonstration

LINK-PP LS-MM8525-S3C is easy to install with plug-and-play support in SFP28 ports, enabling fast deployment in data centers, enterprise networks, and leaf-spine architectures, where it supports stable 25G short-range connections over multi-mode fiber.

LS-MM8525-S3C 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

Pre-Sales Technical Consultation

Professional guidance to help you select the optimal LS-MM8525-S3C module for your network design and application needs.

Compatibility Verification Support

Compatibility Verification Support

Validated compatibility with LINK-PP switches and other mainstream networking platforms for seamless deployment.

Deployment & Installation Assistance

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

Long-Term Technical Assurance

Ongoing technical support throughout the product lifecycle, delivering long-term stability for enterprise and carrier-grade networks.

LINK-PP LS-MM8525-S3C 25G SFP28 After-Sales Assurance

LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.

15 days

15-day no-reason return and refund

Free maintenance or replacement

Free replacement for dead-on-arrival (DOA) or defective items within the initial period

Free maintenance

 Free repair services for manufacturing defects throughout the warranty period

Limitations

Warranty exclusions and conditions apply

LINK-PP

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I***r
Belarus
Verified Purchase
5 .0
2026-05-01
Used in a base station backhaul scenario within a controlled indoor cabinet, these 25G SFP28 modules maintained stable performance even with temperature fluctuations. Optical output and receive sensitivity stayed within expected ranges.
Z***t
Israel
Verified Purchase
5 .0
2026-04-20
Using this 850nm SFP28 module for short-range interconnects in our rack rows, works flawlessly.
A***e
Germany
Verified Purchase
5 .0
2026-03-27
Upgraded our healthcare facility's indoor fiber backbone from 10G to 25G using these LINK-PP 850nm SFP28 optical transceivers. We reused our existing duplex LC MMF cabling runs spanning up to 200m across telecom closets with zero transmission issues. Real-time DOM metrics gave our NOC team full visibility into optical signal health right out of the box. The clean signal output and low insertion loss allowed us to triple our network bandwidth without replacing a single foot of optical fiber infrastructure.
W***r
Macao
Verified Purchase
5 .0
2026-02-07
Works well with multimode fiber at full 300m distance, no signal degradation noticed.
A***s
Iran, Islamic Republic of
Verified Purchase
5 .0
2026-01-11
Installed 35 units of the LS-MM8525-S3C module into enclosed server cabinets where airflow is limited and thermal management is critical. The low power draw of these SFP28 optics kept overall switch ASIC temperatures low, avoiding fan speed spikes across the rack. DOM telemetry monitored via CLI showed steady 3.3V operating voltage and zero temperature alarms over weeks of continuous operation. They are ideal for energy-conscious data centers needing reliable 25G interconnects.
O***r
United Arab Emirates
Verified Purchase
5 .0
2025-12-09
Deployed these 25G SFP28 modules in our campus fiber network, and they’ve been stable across all multi-mode fiber links under 300m.
S***e
Maldives
Verified Purchase
5 .0
2025-11-15
Perfect for short-range high-speed interconnects! If you need reliable 25G SR optical modules for intra-rack patching, these modules are fantastic. The 850nm VCSEL laser delivers clean eye diagrams and low BER. Makes high-density cabling a breeze.
V***r
Japan
Verified Purchase
5 .0
2025-10-02
Deployed these 25G 850nm SFP28 optical transceivers inside our central indoor distribution cabinets to aggregate high-volume data traffic. The metal housing delivers superior EMI protection, and heat dissipation is excellent even in compact, fully populated switch chassis. Running continuously for over a month, ambient operational temperatures remained safely within the 0°C to 70°C commercial threshold. A highly reliable optical transceiver for any enterprise looking for carrier-grade indoor performance.
R***n
Morocco
Verified Purchase
5 .0
2025-09-14
Excellent commercial-grade 25G SFP28 optical transceiver, ideal for indoor data center environments.
T***l
France
Verified Purchase
4 .0
2025-08-24
Very reliable 25G SFP28 transceiver with no performance issues after installation. The only minor concern was that shipping took a few extra days beyond the original estimate, which impacted our project timeline slightly.
L***e
Libyan Arab Jamahiriya
Verified Purchase
5 .0
2025-07-19
In our server cluster interconnect scenario, latency remained low and consistent. No overheating observed even in high-density rack environments.
L***n
Brunei Darussalam
Verified Purchase
5 .0
2025-06-25
Replaced some legacy 10G SFP+ modules with these 25GBASE-SR SFP28 optical modules across our office floors. We tested them up to 250m on multimode fiber and latencies stayed ultra-low. Solid alternative to overpriced OEM optics!
A***a
Romania
Verified Purchase
5 .0
2025-06-01
These work pretty great, cheap, makes connecting switches easy.
J***m
Taiwan, Province of China
Verified Purchase
5 .0
2025-05-24
All OK and Fast delivery.
A***n
United Kingdom
Verified Purchase
4 .0
2025-05-08
Product quality is solid and meets all 25GBASE-SR expectations. However, the packaging inside the box was minimal, and adding more cushioning would improve confidence during transit.
M***n
Norway
Verified Purchase
5 .0
2025-04-27
nice site, good products, simple to use!
R***o
France
Verified Purchase
5 .0
2025-04-17
Good value for the price; easy to order and checkout.
M***t
Lithuania
Verified Purchase
5 .0
2025-04-06
For a recent data center upgrade project, we replaced older 10G SR modules with these 25G SFP28 optics transceivers. The transition was seamless, and bandwidth improvement was immediate without re-cabling.
C***r
Nepal
Verified Purchase
5 .0
2025-03-30
Optical power levels are stable, and the duplex LC interface fits standard cabling perfectly.
R***d
Finland
Verified Purchase
5 .0
2025-02-27
Good product as described, arrived Fast
L***a
Bangladesh
Verified Purchase
5 .0
2025-02-26
This product is used very well.
D***t
United States
Verified Purchase
5 .0
2025-02-21
Replacing budget transceivers with these LINK-PP 25G MMF modules eliminated the frequent link flapping we experienced on our server links. The duplex LC/UPC connector housing features a sturdy bail latch that locks firmly without getting stuck during cabinet maintenance. Links established immediately at 25.78Gbps upon insertion, delivering flawless line-rate throughput across our 250m multimode fiber patch cords. They provide the perfect blend of physical durability and high-speed optical reliability.
R***e
Mexico
Verified Purchase
5 .0
2025-01-13
Excellent support, super Fast delivery, competitive pricing & very good 10/25/40G Transceiver Modules (cant see differences vs other brands) - highly recommend.
H***d
Cambodia
Verified Purchase
5 .0
2025-01-03
Awesome optics for data center top-of-rack links! Bought a batch of these LS-MM8525-S3C 25G SFP28 modules to link our edge switches to our core aggregation layer over multi-mode fiber cable. DDM metrics on our switch stack are spot on with accurate Rx/Tx optical power readings. Highly recommended for cost-conscious sysadmins!
K***o
Australia
Verified Purchase
5 .0
2024-12-22
Fast shipping and pleasant service. Will definitely recommended to my family and friends.
G***a
Romania
Verified Purchase
5 .0
2024-12-19
I needed a solution and the guys were so kind to advise on the exact product that will solve my problem. Very satisfied
T***a
New Zealand
Verified Purchase
5 .0
2024-12-11
A pleasure to use the site. Prompt delivery. Thank you.
D***n
Republic of Korea
Verified Purchase
5 .0
2024-09-05
First purchase! Good price and Fast shipping. I will test it and give some feedback soon.
R***g
Brazil
Verified Purchase
5 .0
2024-07-13
very satisfied ^^ thank you Fiberstore.
B***e
United States
Verified Purchase
5 .0
2024-06-21
The quality of the product is excellent. 5 stars for it
T***r
Philippines
Verified Purchase
5 .0
2024-06-11
High quality pre-sale support and prompt shipping.
W***g
Japan
Verified Purchase
5 .0
2024-06-01
We have tried them and they worked perfectly with our equipment. Solid performance. I will definitely buy more to connect my switches. Thank you for a wonderful product.
E***i
United States
Verified Purchase
5 .0
2024-01-14
Work as described.
R***n
Canada
Verified Purchase
5 .0
2023-12-05
Greatest in every way! Will recommend it to friends.
G***u
Macao
Verified Purchase
5 .0
2023-10-23
The technical help I received pre purchase was excellent and pointed me to the correct item to buy. The item arrived on time and worked perfectly.
A***a
United States
Verified Purchase
5 .0
2023-09-30
Great site and great company!
J***g
Finland
Verified Purchase
5 .0
2023-08-12
The order arrived within estimated time
A***i
Argentina
Verified Purchase
5 .0
2023-07-08
Fast delivery & easy installation. Thanks!
C***z
Morocco
Verified Purchase
5 .0
2023-07-04
Just received my order today and it is exactly what I wanted!
A***v
Germany
Verified Purchase
5 .0
2023-06-04
This is my second purchase from Link-pp and I am well pleased in all aspects of the transactions.
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