Are budget clamp-on trays sturdy enough for heavy mechanical keyboards and gaming mice?

Mostly yes for typical use, but reviewers consistently flag flex and slow loosening over time on sub-$50 trays. Verified-purchase reviewers report needing to periodically retighten clamps, and a high-trust r/Ergonomics thread specifically warns that VIVO clamp screws can work loose. Heavier setups (large desk mats, full-size boards, weighted mice) benefit from a drill-mounted tray or a model rated for higher loads.