3.5-inch external hard drive small problem

150 to buy a box +400 hard to form a 320G external hard drive will not be unable to identify, slow speeds, with less than switch to other issues, I would like a group of external hard drive, group finished in less than fear, Ha ha

external hard drive can use this for a long time there was no problem with normal circumstances, the speed of transmission is certainly a lot of slow Oh, because Use the USB interface is generally not, there are 3.5 External external power supply.
But through the USB transmission, the speed limit could reach 100M / s, but it is only USB2.0 Be able to reach 11MB / s, not large-scale software installed on the top, very slow, motion pictures and the like documents pretty good.All right to load the virtual drive, drive really quickly.
Can be used for a long time, I have been hanging on in the Computers, few have nothing but the best off after the hard disk turn off the power supply.
If not satisfied with the speed of USB, you can buy support for eSATA hard drive box, of course, to support the computer.Or IEEE1394 interface is good .All this may be your side, as long as you have a computer interface.USB2.0 hard drive box with the support.Has an external power supply box, do not have to consider not recognize.Electricity for a long time you have no problem.