[H] Memory card reader with floppy

[Winterlight]

I have a external USB2 Sandisk 8 in 1 memory card reader that has four 
input slots. Unfortunately, it creates FOUR drive letters when I plug it 
in. I use a lot of partitions, and mapped drives so this is not a good 
thing for me. I am thinking about getting a USB floppy with memory card 
reader(s) and I am concerned about all the drive letters.

Do all multi readers use more then one drive letter?