Do you by chance mean SD Card instead of SIM card? SIM cards are for GSM cell phones and tablets, so while I don't exactly make it a point to keep up with these things, it would be news to me that there is a sudden rush of devices to read SIM cards. And given how little data they tend to store, I'd be a bit baffled as to why you'd WANT to read the SIM card on a PC.
Now if you mean SD cards, that would be a whole other story, but before I get too far ahead of myself, I want to verify you meant SD card or something else besides SIM card, or at least get some idea of what you're planning to do with a device to read SIM cards.
On my PC there is a card reader connected. It shows up as 4 different drives when I look at "My Computer" and elsewhere. One of the slots in the reader is for sim cards. When a sim card is inserted a Windows sound is heard and the "Installing Device Driver" window shows up but then another window stating the installation was not successful. Any further action from within windows does not solve the problem. I tried an external card reader connected via USB and the same negative results. this was tried with 3 different sim cards. Any solutions out there?