1756-L55 / 1756-M13
ALLEN BRADLEY 1756-L55/A PROCESSOR UNIT and 1756-M13/A MEMORY EXPANSION
A nice touch is that it comes ready for Cub, Cub Loboy, A, AV, Super A, and Super AV.
ALLEN BRADLEY 1756-L55 /A LOGIX 5555 PROC UNIT W/ 1756-M13 /A MEMORY EXP*READ*
What stands out about Allen Bradley is their compatibility with Rockwell software.