Logitech Wireless Touch Keyboard K400 Plus Maximum data transfer rate___130 Mbit s and System Latency and System Latency The My Book drive’s built in 256 bit AES hardware encryption with WD Security™ tools helps keep your content private and safe Logitech Wireless Touch Keyboard K400 Plus 9 mm Packaging data Package volume 1755 cm� Wireless receiver interface USB Type A Receiver included Yes Batteries included Yes Package weight 530 g User guide Yes Package width 31 mm Package type Box Package height 153 mm Package depth 370 mm Number of products included 1 pc(s) Logistics data Master (outer) case width 171 mm Master (outer) case length 379 mm Master (outer) case height 321 mm Master (outer) case gross weight 5