There's a company called QuickerTek that makes USB transcievers that works for Macs. Only problem is the cost; its about US$200 excluding freight. Specification wise it's supposed to boost the signal by about 27db, but I've not tried that so I can't verify this.
BTW, the word PCMCIA is so last century. Its called PC card slot now. And furthermore, Apple dropped that when they started making MacBook Pros; they have in its place what's known as ExpressCard/34 slot.
BTW, the word PCMCIA is so last century. Its called PC card slot now. And furthermore, Apple dropped that when they started making MacBook Pros; they have in its place what's known as ExpressCard/34 slot.