If I recall correctly, Lain found the Psyche chip in her locker. However, he did give her an envelope containing a memory chip in episode 9. CLICK_HERE 03:50, 3 January 2014 (UTC)
JJ's Japanese VA
"JJ is voiced by an actual DJ, Wasei Chikada"
I can't seem to find a source on this; it may be true that Chikada voice some clips for the show, but it seems that all sources point to Ari Morizumi being the actual voice for JJ during regular dialogue. Just going to give it the benefit of the doubt for now until further investigation is done.