HKM-623763 Cherry Four-Axis Mechanical Keyboard Shaft Tester - USB Wired Connection, Non-Waterproof, ABS MaterialDiscover the HKM 623763 Cherry Four Axis Mechanical Keyboard Shaft Tester, a must have tool for both keyboard enthusiasts and professionals. This USB wired device is designed to give you an in depth understanding of various mechanical key switches, allowing you to explore different tactile sensations and refine your keyboard setup. Crafted from high quality ABS material, the HKM 623763 is built to endure rigorous testing while remaining lightweight at