Hi~ I am interested about getting CR5400 Adapter. But here's the problem, I am a newbie in this... Could it be used with only 1 Kingmax MicroSD 16GB (Class 10) or I need to fill up the 2 slots in order to use it? Btw, I will be using it on my PSP-3000. If it can be used with one slot empty, can you pm me the price of CR5400 with 1 Kingmax MicroSDHC 16GB (Class 10)? Thanks in advance