This great product also comes with a removable/retractable cable system, so not only can you attach the keypad via the USB port immediately. You can disconnect by either removing the cable from the back of keypad or by removing the USB cable from USB port. The retractable cable allows you to decide on what length of cable you need and keep you desk free from excess cable.

Features & Specifications:

• 19 keys keypad layout with built-in 12 calculator functional hot keys.
• Dual usage: as a calculator or a regular keypad.
• 12 Digit LCD.
• Special removable/retractable cable management.
• Send the calculation result to computer systems.
• Plug and Play, Hot swapping.
• Low power consumption.
• USB 1.1 interface.
• Operating: Force 55 ± 20gm.
• Total Travel 3.5 ± 0.5mm.
• Cable Length: 750 ± 20 mm (Black).
• Key Switches: Membrane switch with tactile feedback.
• Keycaps Type: Low profile.
• Operating Temperature: -10 ~ 60 oC.
• Storage Temperature: -20 ~ 60 oC.
• Operating Humidity: 10% to 90 % RH.
• Power consumption:
  Two-Way Power System for calculator mode: USB power or one A3 battery
  - Without plug into USB: DC 1.5V 160mA max
  - Plug into USB: DC 5V ± 10%, 6 mA max.
• Switch Life: 8 million cycles.
• Keycaps Color: Black.
• Case Color: Silver and Black.
• CE & FCC compatible.
• OS Compatibility: IBM PC compatible system, Windows 98/ 98SE/ 2000/ ME/ XP.

Calculator :

• 12 calculator functional hot keys: M-, M+, MRC, %, TAB, MU, GT, SQR, +/-,BS, MODE, SEND.
• The Two-Way Power System for calculator mode uses USB power, or one A3 battery (LR41).
• Auto Power Off Function: Auto power off after 4 minutes approximately from the last key input.
  Provide Independent and Grand Total Memory.
• Selectable Rounding from among floating-point, cut off, round off and Add Mode.
• Selectable Number of Decimal Places: 0, 2, 4
• Battery Life: Approximately one year for A3 battery (1 hour per day of operation)

Packaging:

• 1 x USB Mini Keypad with Calculator
• 1 x Retractable USB cable
• 1 x Software
• 1 x User Manual