USB 2.0 Keypad Encoder from Storm-Interface. Compatible with most Storm keypads and key formats including 4, 12 and 16 key calculator and telephone layout variants. Suitable for Storm product series 700, 720, 1000, 2000, 3000, GFX and PLX. The output code table can be customised using the USB Configuration Utility which is available free by download from; www.storm-interface.com. The 450i version has an integral power supply enabling colour and brightness control for keypad illumination where applicable. The 450i also features a piezo sounder for key press confirmation or status signal.

Connection via USB Mini-B socket
Operational voltage 5V+/- 5% (USB)
Operating current 20 mA including illumination current
Generic keyboard (HID) device - no additional drivers are required
Easily attached to the rear face of the compatible keypad
Factory configured for standard numeric data entry.
Operational temperature range; -20 to +60°C
Humidity 10% to 90% non condensing