Mitsubishi Electric CPU unit bundle - kit / bundle (1 x CPU (Q00UJCPU) + 1 x P.S.U. + 1 x 8-slots backpl. rack) -MELSEC-Q QnU series - 10Ksteps / 40KBytes (Program) memory capacity - connection capacity 256 x I/O points - with USB connector + 9-pin D-Sub female connector (RS-232) - with RS-232 communication capability - Supply voltage 5Vdc (from dedicated Q-series P.S.U.) - Backplane / rack mounting - equivalent to Q00UJCPUS8