ZINMARK USB to RS485 Serial Converter Adapter CH340T Chip LED Display Data Communication/PLC Data Reading/Data R&W Centralized Control Converter Module for Win 7 / XP/Vista

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. 

To start a return, you can contact us at Service@Zinmark.com . If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. 

You can always contact us for any return question at Service@Zinmark.com.

12 months Warranty

We provide a 12-month warranty period for all the products sold (subject to the date of receipt). If the products are damaged within 3 months, you can replace them for free. If the products are damaged within 3 months, you can provide free maintenance service (customers repair by themselves, and we will reimburse the expenses).

Note: If your products need after-sales service, please contact customer service within the after-sales period.You need to take a picture of the damaged product including the details and send it to customer service

Damages and issues 
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items 
Non-returnable factors include products that have been used for a while and don't like them.Product damage caused by human factors such as intentional scratches or other intentional damage within the warranty period.

Please get in touch if you have questions or concerns about your specific item. 

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges 
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds 
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.