That wouldn't work. I don't know about the others but I do know that a PS/2->USB keyboard adapter only works with either keyboard HID USB devices or Mouse HID USB devices. Usually, they work with either one or the other, sometimes both keyboards and mice, but using it for any other USB device and expecting it to work is completely ludicrous. How would the converter translate, the operation of a Mass storage device so that it works through the same interface that a keyboard and mouse use, neither if which have much more then a few kilobits of data transfer (they both use the very slowest USB mode, which utilizes a subchannel of the very slowest 1.5mbps speed, and even then it get's translated to the far slower (a few kilobits, maybe) PS/2). One can assume that the PS/2 adapter would be specifically designed to translate the instructions being set from the PS/2 (stuff like wether caps lock is on and so forth... at least for keyboards. I don't think Mice even accept anything in response from the PC) to HID instructions for the USB device in question, and Vice versa. Also, notice that despite the fact that the PS/2 to USB converter always bears a small USB symbol toward the USB side on the top and a small symbol sometimes) that is either a mouse or keyboard on the PS/2 side I find it curious how this one bears neither. (it's not on "the other side" side that would be the bottom and they never put it there.
Let's go through each little device, shall we?
First, we have the parallel port itself. connected to this is a white block that Must be a Parallel DB-25 to Serial DB-25. I say this because there is no Parallel DB-25 to Serial DB-9 and also because otherwise the white thing is just a parallel port extension, which is rather pointless.
Connected to this we have the Serial DB-25 to Serial DB9, and then what appears to be a PS/2 to Serial DB9, and the final PS/2 to USB.
As well as what I noted about the PS/2 to USB device itself, it's important to know that in a similar vein the PS/2 to Serial devices only work properly with Mice. First off, it only even works properly with mice that are designed to use it. (that is, the mouse actually has to change what it outputs dependent on wether it is connected to PS/2 or Serial.
This sort of use would never work, especially because USB plug and play doesn't work through ANY of the adapters.
