Black Widow V3 full size disassembly. There's 15 screws underneath the key caps that you have to remove in order to separate the bottom part from the top. Gonna add some foam
Amazon.com: Razer BlackWidow TE Chroma v2 TKL Tenkeyless Mechanical Gaming Keyboard: Yellow Key Switches, Linear & Silent, Chroma RGB Lighting, Magnetic Wrist Rest, Programmable Macros, Classic Black : Video Games
How to remove and install mechanical switches on a keyboard - YouTube