The DexHand021 MP, our flagship model, is an industrial-grade, mass-produced five-fingered dexterous hand featuring 19 DoF with three-joint fingers. Equipped with 23 built-in sensors, it enables operations such as single-handed cube solving, multi-object grasping, and the use of common tools through visual servoing and an exoskeleton control suit. The DexHand021 MP excels in reliability, high integration, strong compatibility, easy maintenance, low power consumption, and multi-modal capabilities. By integrating tendon-driven elastic underactuation technology with multi-modal sensory processing, motion planning, and embodied intelligence algorithms, it achieves precise measurement and fine-grained perception of the environment and manipulated objects.