A SCSI connector assembly includes a housing including forward upper and lower plates either having top and bottom grooves, a rear staged seat including upper and lower platforms and an intermediate, longer platform; four stacked rows of conductors of different configurations, each conductor including an electrical terminal and a bifurcation at both ends, the conductors passed through the housing to seat on the grooves; flat cables connected to the conductors and fastened by the bifurcations; a metal case secured to the housing; and four mounting boards each including two side pegs and two rows of valleys separated by a channel. The mounting boards are mounted on tops and bottoms of the platforms by inserting the pegs into side holes of the platforms. The cables are fastened by the valleys.