For sell is a fully working condition Power/B BN44-01264A for Samsung QN77S90DAFXZA and QN77S90DDFXZA with free shipping! If you need it faster, you can choose Fedex 2Day Air for an additional $45 at check out. Otherwise, FedEx ground is free as always. All of our boards are stress-tested for at least 48 hours before being listed for sale. We are proud to have sold more than 200 units (both Local Pickup and Online Shipments) with zero reported failures. Thank you.