This is a case designed for the Ursula 40% by jimmerricks for both MX and Choc variants. It has optional tenting baked into the design via M3 heatset threaded inserts. The design is a vaulted switch plate, gasket mount design that fastens with 6mm x 3mm magnets. A base with support for LED underglow is coming soon.
6mm Magnets: https://www.amazon.com/DIYMAG-6x3mm-Refrigerator-Premium-Brushed/dp/B07KZQGWNN
M3 inserts: https://www.amazon.com/dp/B07LBRB5HL?psc=1&ref=ppx_yo2_dt_b_product_details
The author hasn't provided the model origin yet.