Hi, I am Singapore Based SI, and we have been using LockStar from China, and are trying to find alternative brands to replace the exiting system. We are looking into your hotel key system for my customer's dormitories using Mifare 4KB  cards, and I see that you are offering two models HDS(HA)7, MPH7. Please kindly quote us each model with qty of 50 pcs each, together with its management SW, and if there are any, other related accessories as well.