Ah! (sigh) STEREO! A simple little word but the cause of much confusion. Let me start with MY personal definition of what a stereo recording is?
It is made with an array, minimum two* of microphones that ultimately end up as two tracks that are reproduced by two speakers ("stereo" does not mean "two" nor are we so limited but for now, K.I.S.Sir? ).
In the rock/pop world a number, often QUITE a number of microphones are recorded to individual tracks and then after the event the real work starts of blalancing, panning, and otherwise moulding the multitrack takes into a meaningful, believable stereo "stage". This is "mixing" and it is a great skill and I don't have clue one!
So, the UCA202 is a TWO CHANNEL device and as such is perfectly capable of recording a stereo track IF you feed it signal of the correct sort. Say you had a mixer? You set up two mics as a stereo pair (Google "co-I" and "spaced pair" recording) feed the line out from the mixer to the 202 and setup a stereo track in your DAW. Job's a good'un.
Now, Plug a mic in one channel and guitar in the other and record two tracks. You will have vocals one side and guitar the other. You might like that but STEREO it ain't.
Bottom line. Any AI with two XLR inputs will allow stereo recording but YOU have to know how to set that up!
*Purist "classical" recordings can be made with just a pair of directional microphones. Figure eights are said to be best. In practice such recording are done with multiple mics and the result "approximates" a simple setup. Music critics have a lovely time deliberating over such mixes!
#Errors and omissions excepted#! I am but a solderer.
Dave.