They link together with some operating systems. But with MS$ you get them usable and they are recognized on bootup, one as 20 the other as 80. You have your 100, just in 2 cans.
This is presupposing that your system can handle the 80. You may find that there are some limitations so the largest piece you can see is 32 or multiples of 32 plus remainder.
Your machine manual should help.
Ed Fair
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