DETAILS100% working, tested and confirmed by authorized technician.I/O Shield / Backplates: IncludedCompatible CPU: Intel LGA1151 CPUs (Please look up manufacturer manual to check supported CPU list)BIOS version: Unknown (We didn't check the BIOS version so we do not guarantee that it will be the latest version)BIOS Reset to factory defaultThis motherboard designed for the OEM manufactuere and we do not recommend to use it with custom build PCPicture shows actual item's conditionPOLICYWarranty: 30 Days money back guaranteed by except AS-IS product. If you have any issue, please send a message us first then we will fix the issue smoothly.Return: We provide free return shipping label. This policy will be covered in United States ONLY. Any international buyer or location must return a product at your cost. No exception.Payment: Paypal and Major Credit Card Accepted through Shipping operation day: Monday - FridaySame-day ship out available before CUT OFF time (Deadline):7:00AM PT (10:00AM ET)Friday:If you order an product after deadline, it will be shipped on next available business day. No exception. (CLOSED on SAT, SUN)We do not offer faster shipping service than we provided on shipping option tab. If you want to use your own shipping label, please contact us immediately after purchase a product.Shipping carrier can be changed without any notice.We do not accept local pick up.Please leave a note if you want drop-shipping service.Please be informed that expedited shipping is available for single unit purchases at an additional cost. Unfortunately, this offer does not extend to bulk buyers. If you purchase multiple units and opt for expedited shipping, we'll refund the extra shipping charge and ship via ground mail. We apologize for any inconvenience caused. Thank you for your understanding. (We're sorry for this limitation for bulk buyer...)Additional shipping fees paid by the buyer are not eligible for refund in any circumstance