ADTRAN 1442440G1 Compatible 10GBase-ER SFP+ 1550nm 40km SMF(LC Duplex) DOM Optical Transceiver

We provide free refund & return within 30 days and the customer will be responsible for the return fee.

Please contact customer service to confirm before returning. Customer Service Email: info@flypro.com. The product must be guaranteed to return in its original status.

Once the return is received, the order amount will be refunded to your payment account.

If you place an order on the FLYPRO.com website, we will provide permanent technical support. If you need help, please feel free to contact us.

The service hours are from 9:00 to 18:00, Monday to Friday(GMT+8)

For information on technical support products, please send them to info@flypro.com.