1. Whether the motherboard is brand new or old, it is shipped after 100% testing2. Delivery time: 2-7 working days on site, with a delivery warranty of 90 days3. Return: Received 14 kicks. Contacted the seller for a refund and paid for the shipping fee4. The motherboard shipment does not include COMS batteries5. Regarding express delivery: Air mail: Generally, it takes approximately 7-15 working days to transport to the United States. Delivery to Canada, the African Union, the United Kingdom, and other European countries takes approximately 25-45 working days.6. If urgently needed, please contact us to send other express shipments such as DHL UPS, etc., and additional shipping costs need to be calculated7. International buyers - Please note that import tariffs and taxes are not included in the price or shipping cost of the goods. These costs are the responsibility of the buyer. The buyer is responsible for any loss caused by undelivered address - please verify with the customs office in your country before offerding or purchasing to determine the amount of these additional fees.The domestic processing time is usually within 2-4 working days after receiving the settled payment for shipment8. Due to any personal reasons (wrong size/wrong color/unsuitable fit), you can simply send us an email to obtain the return shipping address and return the item intact. The return shipping fee will be borne by the buyer, and payment will be refunded when we receive the goodsWe always reply to messages within 1-2 working days. If you have not received our reply, please check your message or contact us later