I wasn’t impressed with Keychron’s earlier Mac-focused mechanical keyboards, but the company blew me away when I tried the Q Series a couple of years ago. Since then, it’s been a frequent feature in our best keyboard roundups. And today, Woot is selling many of the initial Keychron Q designs — which can retail for over $200 — starting at just $69.99. So, what’s the catch? These are the first-gen Q keyboards, which means they lack the Bluetooth and 2.4GHz wireless connections of the new standard Q Max designs. These are really only deals if you’re okay with a high-end board that needs a dedicat…