Mini USB Numeric keyboard with 19 keys(Black)

1) USB numeric keypad with 19 keys 2) Works seamlessly with USD-ready notebook and PC computers 3) light design, ideal for travel 4) Human body engineering design 5) Good tactile feedback 6) Plug and Play * Specification: 1) Key trip: 3.0+-0.3mm 2) Maximum pressure: 55+-5g 3) Operating temperature: 0-55 Degree C 4) Product size: 131x100x12mm 5) Operating voltage: 5V