The first type to mention is the multiplatform Adesso USB Mobile Mini Keypad, which has 19 numeric keys which are accompanied by a retractable, portable USB cable which has a hot-swappable connection. It is shaped elegantly, with a professional black keycap enveloped in a silver case. The retractable cable length is 30 inches, and the keypad itself has dimensions of 5.2" x 3.5" x 0.6". The weight is 4.59 oz. It is compatible with Notebook, PC and Mac computers and the following operating systems : Windows 98/Me/2000/XP and MacOS X. Special features include a special key for inserting triple zero, ex. "000', a backspace key, and a high-quality membrane key switch.



For a greater number of keys, a full size CKS 32-key number pad, which can be connected to any laptop, is available. It is highly desirable for both left- and right-handers, as the numeric keypad can be easily positioned on the left, providing the ideal convenience for left-handed computer operators. In addition, this USB numeric keypad is an easily-positioned, disconnected addition to your existing layout.

The standalone PS/2 / USB input device, which has 32 keys, is especially made for data entry personnel who are unaccustomed to the Comfort Keyboard Signature Original. It can be angled, tilted, and adjusted for the ergonomic comfort of the operator to help alleviate or prevent work-related symptoms such as RSI or carpal tunnel syndrome. This is also the ideal chance to get left-handed (or rather, ambidextrous) data input device that prevents one from hunching uncomfortably over a traditional keyboard for tediously long hours working on spreadsheets, data entry applications, or processing accounts. It has an excellent switch life of 20,000,000 duty cycle.

The SC N4 is a standard asynchronous ten-key mouse pad and a scroll wheel, with embedded optical mouse function, offers 3 different modes of operation by pressing a mode switch. The mouse functions by its only mode, just as the keypad functions as its only mode, whereas the mouse and keypad have a combined function mode. The 3 buttons and wheel mouse function also offer convenient and USB slot saving when using in Notebook. Other additional features are: a resolution of 400 dpi, a USB interface, as well as compatibility with the following operating systems: Win 98SE/2000/ME/XP.

The USB Numeric Keypad Hub product is the latest ergonomic peripheral designed to enhance the operator's productivity and comfort. The USB Numeric Keypad Hub allows all calculations to be executed from the keypad; therefore there is no need to tediously use a mouse to select these functions, or worse still, to use a calculator to do the work and then to re-enter the values manually. As a consequence, errors are reduced, and efficiency is significantly enhanced. Attractive features include: a USB connector, 22 keys. The keypad has all the functions that allow efficient output for Excel spreadsheets by providing ready access to essential keys such as:

Tab, Escape, Backspace and also frequently needed symbols such as: , ( ) % $ Y L E c as well as calculator functions such as: MS, M+, MC, MR. It supercedes the use of MS calculator as well as the Clear (Esc), CE (Del), Backspace, +/-, and =. The inclusion of a 00 will enhance the efficiency in many applications when working with dollars and cents. It also boasts of a long switch life of 20 million cycles. Physical features consist of a soft tactile feel, operating force of 2.0 oz ± 0.7 oz, a pre-travel of 0.08" ± 0.24", a total travel of 0.16" -0.2", and a tactile force 2.3 oz ± 0.7 oz.