This offer was fetched from reverb.com. You cannot contact the seller via ModularGrid. You have to visit their site.
Look up onComes with TRS > 2x TS (Stereo to dual mono) cable but NO POWER SUPPLY (it didn’t come with one when I bought it)A 9v centre negative PSU will power it but it needs a higher mA rating than your standard 9v pedal PSU. I ran it from a Cioks DC10 PSU with no issues.

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.
About the Unicorn AccountDisclaimer: 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. Always prefer having Buyer Protection when you make a purchase using PayPal. Don't use Friends & Family unless the seller is your friend or family!