100G Extreme Compatible

Extreme® 10403 Compatible 100GBASE-LR4 QSFP28 1310nm 10km DDM LC SMF Optical Transceiver
Extreme® 10403 Compatible 100GBASE-LR4 QSFP28 1310nm 10km DDM LC SMF Optical Transceiver
Extreme® 10403 Compatible 100GBASE-LR4 QSFP28 1310nm 10km DDM LC SMF Optical Transceiver

Extreme® 10403 Compatible 100GBASE-LR4 QSFP28 1310nm 10km DDM LC SMF Optical Transceiver


SKU: 10403-FSZ


Product Highlights


Hot-pluggable QSFP28 form factor


Supports 103.1Gb/s  aggregate bit rates 


Maximum link length of 10km on Single Mode Fiber (SMF)


Power dissipation < 3.5W


Built-in digital diagnostic functions, Built-in CDR


4x25.78Gb/s DFB-based LAN-WDM transmitter


Duplex LC receptacles

New Products


Extreme® 10403 module provides 100GBase-LR4 throughput up to 10km over a standard pair of single mode fiber (SMF) with duplex LC connectors. This transceiver is compliant with IEEE 802.3ba 100GBASE-LR4, IEEE 802.3bm, SFF-8665 and SFF-8636 standards. Digital diagnostics functions are also available via the I2C interface, as specified by the QSFP28 MSA, to allow access to real-time operating parameters. With these features, this easy to install, hot swappable transceiver is suitable to be used in various applications, such as 100G telecom connections, data center, high-performance computing networks, enterprise core and distribution layers, campus networks etc.



Technical Specification

Compatible OEM Extreme Compatible With OEM Part Number(s) 10403
Transceiver Type LR Reach 10km
Wavelength 1310nm Form Type QSFP28
Speed Description 100G Media SMF
Connector LC Duplex  Extinction Ratio >4.0 dB
TX Power -4.3~+4.5 dBm Receiver Sensitivity <-8.6 dBm

100GBASE-LR4 100G Ethernet


Operating: 0 to70°C

Storage: -40°C to 85°C



• Extreme network switches Extreme network routers
Extreme firewalls • Extreme security gateway
• Extreme fiber media converter • Extreme network adapters
• Extreme network interface card (NICs) • Extreme NAS


Quality Assurance



Quality Certification

FIBERTOP has strict control over all products' quality our products, including our strict qualification audit for material suppliers, comprehensive quality management system and production process control which comply with the certifications and safety standard. Our products accord with industry standard and mainstream quality certification, such as  ISO 9001, CE, RoHS, CE, REACH, FCC, FDA, CB, UL etc.


  • Excellent quality is the foundation of FIBERTOPSFP' s survival and development.
  • Our R&D team are experts with rich experience in telecom industry.
  • Our material suppliers are first-class manufacturers in the industry.
  • We have the qualification of OEM for first-class system equipment manufacturers.






FIBERTOP provide after-sales service in strict accordance with Chinese Consumer Protection Law & Product Quality Law of the People's Republic of China. The defects liability period is provided for each product based on the materials, workmanship, frequency of use and service life. The return, replacement and repair services are as follows:




Return within 30 days


Replacement up to 1 year


Up to 5 years warranty

  • Warranty process

Provide relevant information (such as order number, product model, product serial number, product label, etc.)→Describe the problems you meet with →FIBERTOP confirms that the product is complete and still in the warranty period→Send the product back to FIBERTOP repair centre.

Note:The warranty period of the repair or replacement product is based on the longer time,either the remaining warranty period of the original product or ninety days after repair.

  • Request a repair 

When your FIBERTOP products need repairing(RMA-Return Material Authorization ) , please contact your sales consultant to provide timely service to you.


  • Free maintenance items

Guarantee repairing in two years : 1.Not man made damage; 2. Product quality issues caused by design defects or material problems.


  • The following conditions will not be repaired

• Maintenance center judge as a non FIBERTOP products;

The appearance of man-made damage;

End face damage caused by use;

Inapplicable items listed in the warranty statement.


  • Warranty description

FIBERTOP guarantees that all the products are subject to strict quality control from raw materials procurement to production process. According to the problems raised by customers. if it is confirmed that the defective product are caused by raw materials or production process, FIBERTOP will provide repair or replacement services for free ;

The warranty terms do not cover any damage to the product caused by improper installation, accidental disasters, natural disasters, abuse, misuse, inadequate or excessive power supply, incorrect operation, poor environmental conditions, and any unauthorized disassembly, repair or modification ;

The warranty also does not apply to second-hand or unauthorized resale of products;

The FIBERTOP warranty only guarantees that customers can enjoy repair and replacement services when they purchase defective or damaged products ; FIBERTOP is not obliged to compensate or assume responsibility for module damage and repair needs caused by other equipment in use.

The warranty does not cover problems caused by third-party software or connected related equipment,etc.


FIBERTOP always adheres to the concept of "focus, innovation and progress", and is committed to providing every user with reliable products and enthusiastic services.
    Net Weight
0.046kg Gross Weight (with package) 0.32kg


Package of 1~20 pieces
  Step 1 Step 2  
  Step 3 Step 4  
Package of 21~80 pieces
  Step 1 Step 2  
  Step 3 Step 4  
Package of 81~160 pieces or more
  Step 1 Step 2  
  Step 3 Step 4  





FIBERTOP has established long-term cooperation with major global logistics companies to provide distribution services to more than 200 countries and regions.


Receiving Region Logistics Type Timeliness
Hong Kong, Macao and Taiwan SF 1~2 days
FedEx IP 1~3 days
FedEx IE 4~6 days
DHL 2~5 days
Overseas Regions UPS 1~3 days
FedEx 1~3 days
DHL 2~5 days



Note: 1. Timeliness is the estimated delivery time, some remote areas delivery may be delayed, the specific delivery time shall prevail;


  2. If you need to specify a logistics company, please contact  customer service staff or your sales representative.






FIBERTOP has 10+ years of R&D technology experience and more than 100 successful cases. With rich experience and R&D strength, we have a complete set of services from the core system design to the  compatibility design of SFP transceivers and the completion of the final product. We can definitely satisfy our customers' needs through providing customized high-performance products and solutions at the first time.


Product customization



















Scheme Customization













FIBERTOP focuses on customer-oriented solutions and provides technical support.


We can optimize the design based on your original solutions, and also provide you with a complete network solution ,related products and technical support.  





Extreme 100G QSFP28 100m~80km Transceivers

10401 100G SR4 QSFP28 Transceiver MMF 850nm 100m MPO DOM 0-70℃
10404 100G QSFP28 Transceiver SMF 1310nm 2km LC DOM 0-70℃
10403 100G LR4 QSFP28 Transceiver SMF 1310nm 10km LC DOM 0-70℃
10403-40  100G ER4 QSFP28 Transceiver SMF 1310nm 40km LC DOM 0-70℃
10403-80 100G ZR4 QSFP28 Transceiver SMF 1310nm 80km LC DOM 0-70℃





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