Another bonkers sale. Thanks to all of you for your support, encouragement, and patience!!
I’ve started boxing and shipping. I’m a little under 20% through the orders and am expecting to box a lot more when I get home from work tonight.
Do unfold your invoice when you open your box - I’m stuffing all of the little pieces of paper with instructions, hints, and general ramblings in there.
My ability to predict things once again was proven wrong. How many times did I mention that the TXb weren’t going to sell out? I was so confident. And so very off.
I also massively underestimated the need for i2c cables (see discussions above). Sorry. Good thing is that they are super easy to make. (I just use jumpers broken into threes, shrink wrap the ends, and mark one end with a silver sharpie.)
There are a few modules left if you were worried that you missed out. After less than 24 hours we are in single digits on the TXo+ and TXi. Less than twenty each of the TXo and TXn remain as well. Get them while they last. 
This was good as I was worried that I would undershoot the expander demand again. I purposely aimed at the top of the expressed interest to make sure that everyone who wanted one would get a chance. I’m not planning on doing another run of these hand-built units. So, this is it if you want one. 
Can’t wait until everyone gets their units. When yours is boxed and ready, you will get a notification from Shopify. I drop them in the post the next business day (if at night PST) or later that day (if in the morning). Tracking goes active once the post office has processed them.