Does any shop in Chittagong sell such thing?

I need it to hook up my ps2 to my monitor.

I would prefer if it can output at 4:3 aspect ratio and the converted signal doesnt turn into a 16:9 format. I don't want to play the games with stretched image and prefer to maintain aspect ratio with black bars [or stretch it using monitors scaler incase the game has widescreen support].

I had a TV card but the conversion was horrible on that one and the resultant image looked like a blurred mess [Not low res blur, but its like wearing wrong spectacles], not ideal at all.

I'm aware of some upscallers but currently I don't budget to buy those. So having a simple converter will be nice. But the real question is, do they exist and where can I buy them from?