6ES7720-1AB00-0YB0
PG 720C,486DX2-50,8MB, 360MB HD

From SIEMENS

SIMATIC S7, PG 720C CPU 80486DX2/50SL, 8 MB RAM, 360 MB HD, STEP5, STEP7, WINDOWS 3.11, 5 LANG. VERSION (G,E,F,S,I)

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