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SPEED7 MemUp4- 256K
Part No: VIPA 953-1LH00
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MCC - Memory expansion card 256kByte for SPEED7-CPUs, 128kByte program/128kByte data

This adds additional 256kB to your CPU memory. ie. if you have 128kB onboard your CPU then add this MCC the result will be total 384kB available to the CPU.
(note: CPU upper memory limits are restricted by CPU type, for eg. if a CPU has a upper limit of 4MB, then the total upgradeable memory is limited to 4MB regardless of the size of the MCC inserted.)