SZ Kehang Technology Development Co., Ltd. www.metal-keyboard.com Item Number KH-K86-TBV2-445 Description The KH-K86-TBV2-445 is a rugged keyboard engineered to meet the stringent demands of military and marine environments. Its high-strength titanium black alloy housing and wide operating temperature range ensure reliable performance in extreme conditions. Featuring self-developed backlit keys for low-light operation and secure industrial connectors. It is Kehang self-develop and design device. It delivers a dependable, mission-critical input solution. Ideal for the critical input operations in military vehicles, naval vessel control consoles, ship bridges, offshore platforms, and other maritime and defense equipment where size, durability, and environmental resistance are paramount. Features      Built to operate reliably in a wide temperature range, with extreme environmental tolerance. Constructed with a high-strength titanium black alloy front panel. With an ergonomic designed trackball mouse. 86 backlit keys with self-developed black switches Secure & Robust Integration: USB industrial connector for vibration-resistant and reliable connectivity in the shock environment. Specifications Dimensions Keys Key Switch Connector Top Panel Power Supply OS Compatibility Temperature Range Humidity MTBF MTTR Warranty 445 × 172mm 86 backlit keys Mechanical switches (2.00mm travel) USB Metal construction 5.0V DC ±5% All Windows versions, Vista/Linux/Unix/Mac OSX/iOS/Android Storage: -40°C to +90°C Operating: -25°C to +80°C 30–95% RH (operating) > 50000H < 30min 1-year lim