A big capacity extended memory for HP-71B


I add a module, and think that the main memories of HP-71B will be increased drastically.
I knew that there were 4KB and a module of 32KB from former times.
It knew that "128KB module" but, that it was inserted in the magnetic card leader port now and which was used existed.
Can this "128KB module" do the way of using it "32KB module"?
What kind of expansion module was in the market for HP-71B?
And, was the expansion module whose capacity was much bigger than 128KB in the market, too?
Do those expansion modules have what kind of strong point and a fault?

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