High-end crossfade module.
http://www.ericasynths.lv/en/shop/eurorack-modules/by-series/black-series/black-xfade/
If you had an Unicorn Account you could see a chart with the price development of this module and the average price asked for this module.
Essentially brand new, I’ve never used this module, probably had it in a rack, but I have different options for what it does. I no longer have the original box, but will package accordingly and include the power cable.The fade curve is calculated in a way that you do not loose signal amplitude in any stage of crossfade, LEDs give visual feedback on currently active input. When used with CVs, the module helps to come up with really advanced modulations. In addition Black XFADE can be used to boost CV and audio signals.

This offer was fetched from reverb.com. You cannot contact the seller via ModularGrid. You have to visit their site.
Look up onDisclaimer: Modules listed for sale on the ModularGrid Marketplace are offered explicitly by their respective owners. ModularGrid is not affiliated to the sellers and takes no legal responsibility in any transaction.
The internet is a rough place and fraudulent behavior can occur. If you are concerned about dealing with strangers consider buying your module at an authorized dealer.