I wish there was a checkbox to search for passive modules only. Similar to the checkbox for including exotic modules, there should be one that says "passive modules only" or something similar. Checking that box would exclude all powered modules.

I think this would be useful because it seems like there's always a time when you need one more thing for your rack, but don't want to rearrange all the power cables or add another bus. I've also heard of people making a small skiff of entirely passive modules so they don't have to worry about a power supply. The feature seems useful to me.

Just an idea... I love the site overall.