I have blown this transistor while probing a GPU card, I usually take as much care as I could to probe a living device, but yeah, it's not the first time.
I have identified the short I caused and it was a shorted transistor (which also shorted or opened another transistor that connects to the base of this transistor from its collector). It is apparently an NPN one based on the research of the marking code, but based on the need of that transistor it seems more of PNP transistor. I searched many places with the marking ADBA and number 2A on the side as shown in the picture, but could not find any definite answer, as AD is the marking and BA is something like year/week or something else. Honestly, I'm no expert.
How do I identify something similar? I already did the SMD code search with the type SOT-23 or SC-70 etc., but with no success. Or maybe I already found what I want but there are many and they all seem to be doing different things, but can still fit the need above to drive a 12 V fan.