The Dryer Module add-on from Roborock (original), for the O35 Onyx3R oborock S7 Pro Ultra /Roborock S7 MaxV Ultra Models. Roborock S7 MaxV Ultra Dock Hot Air Dryer Module - Full Test Results! The reason is probably due to differences in hardware: the S7 MaxV model has an IR device that S7 Pro model doesn't.
Dryer Module with Empty Filling Base, Drying Time Adjustment, Intelligent Drying, Compatible with Roborock S7 MaxV Ultra/S7 PRO Ultra (Color : Drying) : Home & Kitchen
roborock S7 Max Ultra Robot Vacuum and Mop Combo, Auto Mop Drying and Washing, Self-Emptying and Refilling, 5500Pa Suction, Reactive Tech Obstacle Avoidance, White (RockDock Ultra Series)
Roborock S7 MaxV Ultra Review: Siri-Controlled Smart Vacuum & Mop
Original Roborock Empty Wash Fill Dock Smart Dryer Module Robot Cleaner Accessory Part Mop Drying For S7 MaxV Ultra App Control - AliExpress
Roborock S7 Empty Wash Fill Dock Dryer Roborock S7 Maxv Ultra Vacuum Dock - S7 - Aliexpress
Original Mop Drying Accessories For Roborock S7 MaxV Ultra S7 Pro Ultra Dry Empty Wash Fill Dock Smart Dryer Module Spare Parts - AliExpress
Roborock S8 Pro Ultra Robot Vacuum with RockDock® Ultra – Roborock Malaysia
after waiting for more than a month it finally arrived! will update with pics from progress : r/Roborock
Roborock S8 Pro Ultra Review