I just bought a affordable laptop cooler pad, it has two USB ports. One is used to extract power from laptop and running the fans, other port I tried to connect keyboard
KAYMAN 6 x Reusable Cooling Gel Pads | Multifunction Gel Cushion Pillows for Absorbs, Dissipates Heat, and Sports Injuries | Improves Sleep Quality and Reducing Night Sweats - 40x50cm Jelly Inlay :
Best cooling pads for your laptop in 2023 | Evening Standard