Dear Expert. I was using BUFFALO HD-H300u2 External HDD which I bought in Japan. and this one has been broken...(I was using in U.K.) I was using electric transformer 100v to 240v but I think Transformer had a bit of problem. I stepped on Electric Transformer, then I could see the inside of transformer...I was using that for a while with this HDD, but keep switching off and kinda smelly sometimes, I completely forgot about it was half broken, and I used it yesterday... suddenly this HD cannot switch on (as the transformer) , then I can hear strange small sound zizizizizi when I plug into normal safe transformer.. I don think its HDD damaged(I hope)but the power supply... I just wonder if this Japanese HDD can be usable in the HDD case like > LUPO 3.5" HDD USB 2.0 External IDE Hard Disk Case Enclosure take out from the case and put in the case. cos the Voltage is different from UK... and i have no idea what is inside the baffalo product is it 3.5inch? special one? maybe 2HD? its 300GB... normal internal HDD I don think there is a difference between Japanese, UK... or maybe I should buy HD case in Japannnnn? Thank you