Replacement THW10 Chassis Sections. Feel free to cut, drill and replace chassis sections as needed without worry of ruining your case. Each chassis section can be purchased individually as part of our "mod-friendly" design. Chassis sections do not include any retention clips, covers or any other joining parts. The Chassis Dividers and Divider Covers do include new u-channel around cable management holes. The motherboard chassis dividers do include motherboard tray rails.