60-Day Money-Back Guarantee

Cozlink offers a 60-day money-back return policy

  • 1

    Apply for a Refund

  • 2


  • 3

    Return Product

  • 4

    Check Product

  • 5

    Refund or Exchange

Limited Warranty

Different products have different limited warranty

Ten Years

CWDM/DWDM Serials and Optic Splitter

1. The warranty period is calculated from the date of purchase. Products during the warranty period appear artificial damage failure of performance (due to defective materials or workmanship), users with proof of purchase can enjoy free repair / replacement or refund the original purchase price; if there is no certificate, or no other debugging information to determine the final acceptance date of purchase, date of production places authorized warranty.

2. Due to disassemble the internal parts of the product, improper use, maintenance, custody that caused damage, over the warranty period, the certificate does not match the product model.These kinds of situation do not fall within the warranty.

Three Years

Transceivers 、Network Interface Cards

30 Days Exchange and Return Policy

The cables

One Years

The rest items

3rd-Party Compatible

Perfectly replace the original products, much lower price than original products

Privacy Policy

We respect and protect your privacy


We have put in place appropriate physical, electronic, and managerial procedures to safeguard and secure the information we collect online.


Cozlink uses the data collected from website visitor cookies and hosted racking in aggregate form only and does not collect any personally identifiable information.


We will not sell, distribute or lease your personal information to third parties unless we have your permission or are required by law to do so.