1、Mechanical Linear Switche: 18 key mechanical numeric keyboard, mechanical linear switche linear switche structure, excellent feel, suitable for office and game use. 2、Long Key Life: Long key life, key life: > 50 million times, keycap is comfortable. Suitable for special equipment such as bank securities, financial accounting, etc. 3、Splashproof: It adopts waterproof and splashproof design to avoid the loss caused by sudden water entry. With Esc key, with F1 F2 F3 F4 keys, with Enter key etc. 4、Plug and Play: The mechanical numeric keyboard is plug and play, USB interface, no driver required, and compatible with multiple systems. 5、Anti Skid Pads: There are four large anti skid pads at the bottom of the mechanical numeric keyboard, which can effectively avoid shaking or falling during use. Item Type: 18 Key Numeric Keypad Material: Plastic Model: DX 18A Keys: 18 Key Cable Length: Approx. 1.4m / 1.5yd Key Structure: Mechanical linear switche linear switche Button Life: >50 Million Times Product Size: Approx. 140 x 102 x 25mm / 5.5 x 4.0 x 1.0in Function: Splashproof, Mechanical linear switche linear switche, With Delete Key, with Esc Key, with F1 F2 F3 F4 Key, with Enter Key Applicable: Business, Industrial Control, Sound Visual Education, Security, Road and Bridge, Securities and Other Different Scenarios Support: For DOS, for Windows 95, for Windows 98, for NT, for ME, for 2000, for 2003, for XP, for VISTA, for Windows 7, for Windows 8, for Windows 10, for Linux, for OS X, etc. 1 x 18 Key Numeric Keypad