Perixx PERIBOARD-505H Wired Mini Keyboard with Built-in Trackball, 0.55 Inch Trackball and 2 USB Hubs, Black, US English Layout

All-In-One Design: Mini keyboard with a built-in trackball; Keyboard dimension: 12.4 x 5.79 x 1.02 inches (315 x 147 x 26 mm), Weight: 15.5 oz (440 g), Cable length: 5.9 feet (1.8 m) Precise Trackball: A 0.55-inch trackball with an optical sensor and 1000 DPI; With left-click and right-click buttons, which are adjacent to the ball to perform as a mouse replacement Intuitive Design: With two extra USB hubs to connect other USB devices to your device; PERIBOARD-505H is a perfect fit for various industrial and professional uses Comfortable Typing Experience: 87 membrane short distance keys; The keys are quiet and require less pressure to press for comfort and efficiency