Summary: I actually bought this for a stop motion software piece called DargonFrame, as it's separate to the pc I can use the buttons with ease. Satisfying button press if you're into that sort of thing and it does what it does for a good price. Build quality is very good for the price, some might say the plastic is light - don't be discouraged. Really long review for a number pad, but it's rather good.
Summary: A very good accessory with nice key 'touch'. Well priced too. Really pleased with it. One suggestion that would make it even better would be making the numbers on the keypad a little bigger. Otherwise just great.
Summary: Purchased for use with a laptop running Windows Vista that does not have a number pad. It was a case of 'plug-in-and-go' - it worked and continues to work without problem. The keys are well spaced and easy to use - with a 'pip' on the 5 . The little rubber feet stop the unit from sliding arround and the angle of the pad makes for easier keying. There is sufficient wire to allow access to any of the laptop usb ports. All in all a good solid product.
Summary: Bought this to use with a laptop at work for spreadsheet number input. The keypad is similar look and feel to my laptop so intuitive to use, has + - * = buttons that all work on office 2007. The lead is far far longer than I needed, the pad is well angled and has rubber feet to stop it sliding about... Does everything you need, looks a little cheap, but what do you expect at the price?!
Summary: works fine out of the box. The documentation is quite amusing though - it comes with a 10 page leaflet in explaining in 25 languages that the user guide is availalbe for download from a website ([...]) that takes us to a PDF of a 57 page used guide with 2 pages for each of 26 languages (they have added arabic) explaining that you just need to plug it in.