not sure who makes them but there are cards you can get to attach inside of your pc so that you can plug your dongles inside the towers and dont have to worry about someone snatching them or losing them, not if you are switching your dongle from computer to computer this wouldnt be ideal for your situation. We also do structual steel detailing and a seat of that software is $25-30,000(Tekla Structures) so losing a dongle isnt an option for us. Our other softwares that require a dongle we have locked up in a safe. Detail Cad, Flexi, etc.