I have an external hard drive from iogear that I no longer have a charger for. I have contacted the company several times and they no longer make external hard drives and do not supply the unique charger from said hard drive. I was told by the company that no universal charger will work on the hard drive and my best bet is to put it into a new case. My question is what case would make and acceptable transfer case? It is model:GHD335C20 Thank you for any help you can give me.