We want to make sure that you don't get stuck with a lemon and will either replace or have the unit repaired by an authorized service center on our dime. All gear is tested prior to listing for sale. Any known issues will be mentioned in the item description.You will have 14 days from receipt of the item to test and make sure that everything meets your expectations. We are happy to assist! We insure every package for the full amount. If you experience a problem with a unit. Attempt to open or repair the unit yourself. Please send us a detailed description of the problem you are experiencing and we will have a team member contact you as soon as possible. We are not responsible for unit damaged due to use of improper voltage. Please make sure to double check voltage compatibility and use a proper voltage converter when necessary. We are here to help, so if you don't get ahold of us leave a message and we'll be back with you as soon as possible. The item "MOTU 828 MK3 Hybrid USB Firewire Audio INTERFACE USED PERFECT CIRCUIT" is in sale since Wednesday, December 6, 2017. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Audio/MIDI Interfaces". The seller is "perfect_circuit_audio" and is located in 91504. This item can be shipped to United States, all countries in Europe, all countries in continental Asia, Canada, Australia.