The tilda ~ here is important; no one wants to buy an expansion card intended for their computer, especially if it is a vital circumstance, and it does not work, the expansion card you just overnighted was for phone systems, and vice versa; open the box, try to hook your business phone system up a few minutes before the big conference, and all the business people waiting outside the conference room, have to stand outside a bit longer, then a lot longer, then no conference, no deal..., the exp...
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