explain1 The service time is from Monday to Saturday2 delivery time: 5 working days3. The warranty period is 60 days, effective from the date of receiving the products4. The returned goods must be kept as they are. Freight is not refundable.5. The motherboard does not have battery, please tell the seller if necessary6. The price does not include any tax and import tax7. If you are satisfied with our products, please give us a five-star praise. If you have any problems, please contact us first, and we will actively solve the problems for youshipment1. The main board will be fully tested before shipment. If it fails the test, we will not ship it and contact the buyer.2. If you need to change the shipping address, please contact the seller's customer service personnel3. There are many modes of freight transportation in our shop. Customers can choose their own mode of transportationAbout shipment:We ship the products all over the world, the delivery time is 3-5 working days after payment confirmation. You can also choose the operator, and you will be informed of the extra charges in remote areas as soon as possible.We usually ship to the address is registered by you, temporarily do not support to modify the address.All prices do not include import and export duties and need to be paid by the buyer. (we will cooperate with the declaration information you need)About after sales service:When you receive the package, please open it and check it before signing. If there is any physical damage, please ask the delivery company for "damage certificate", otherwise we will not accept any return due to physical damage.Please feel free to contact us if there are any functional problems with our products during the warranty period.The returned goods must include all the packaged accessories. Please contact us before delivery.Return by post and no refund of insurance premiumThe warranty period of all products is 60 days, effective from the date you receive the productsAbout feedback:If you are satisfied with our products and services, please give us 5-star positive feedbackWe are honored to make you satisfied with our products and services.Please contact us before posting any negative feedback.If you have any suggestions, welcome, if it is good, we will thank you very muchAbout notes:This price does not include any taxes and import dutiesThe motherboard is without battery. Please contact us if you need.If you need a large quantity, we will give you some discount.Contact Email: [email protected]