If your laptop doesn't have a number pad, you owe it to yourself to buy this inexpensive gizmo.
Amazon Customer "...", Amazon
30 October 2014
Summary: I had been considering a Canon DK100i for a long time. Prices have been fluctuating. Then I saw how much cheaper the DK10i was and decided I couldn't afford NOT to give it a try. It's lightweight. Plug & play. Works as a calculator when not connected. I keep this in my laptop bag. It's a must have accessory for anyone that does a lot of data entry and their laptop doesn't have a number pad. The seller, Arsenal PC, shipped it quickly.
I bought this because my laptop doesn't have a separate ...
Sandy K, Amazon
29 September 2014
Summary: I bought this because my laptop doesn't have a separate numeric keypad. It works very well for that, as well as using it for a normal calculator and being able to input the results into the computer through the USB connection. It's a little flimsy, but does the job well.
Summary: I recently found myself in a position where I needed a handheld calculator with just basic functions. This one fit the bill and deid satisfy my need. Remember though, that this is a barebones calculator. Even the square root function is not on the keyboard. The USB function is cute but has a very limited use.