port

Hi, I am ok on connecting one 8255 i/o chip to an 8085 mpu with an 74138 3 to 8 decoder chip but I am fuzzy on how to connect multiple 8255s? Can somebody please enlighten me, thanks?

Product: Pavilion 15-au146ng Hello guys, one pin of my rj45 port of my HP Pavilion 15-au146ng is broken off. Now i search for the port in the web to replace it by soldering. But i cannot find the correct type. Maybe someone of you knows where to search or even got a link for me to the product...