Hello

I bought three Digisparks USB Development Board from Ebay and after a decade of waiting....It finally arrived to me

pic :
http://img2.buyincoins.com/gallery3/1/f3/54359/054359-1-01.jpgThe problem I'm facing is when I connect it to the computer It doesn't recognize (not giving me new device notification) and I keep hearing the 'Disconnected device' Sound every 10 seconds
And as a beginner in everything, I thought I'm missing something, so I tried these things:
- Downloading and installing the Digispark driver, didn't work
- Tried another one, since I've bought 3 of them and got the same problem
- Tried another computer and still the same problem
- tried re-installing the arduino program just for the sake of trying, nothing positive
In the devices management, it keeps refreshing and I can't identify the device there
So am I missing something? Please help