No driver available, but still has some functionality without
Steven Gauck, Amazon
22 June 2014
Summary: As others have observed, there is no driver available for this device. The website HP refers you to in its user manual is defunct. I searched the HP site for the unit and it is listed and it does provide a manual for it -- BUT NO DRIVER. I've searched for the driver from third party sites, but there are none. The only thing you'll find are other people looking for the driver. It is not plug 'n play, so don't expect to be able to install a driver that way.
Summary: When I bought this item I thought I was going to be able to use it with my laptop but unfortunately this item did not meet my expectations and did not work with my laptop, not saying it won't work for you but it did not work for what I wanted for.
Summary: The product appears consistent with the anticipated quality. At this point, I'm very pleased with the purchase. The quality, fit and finish of the product is consistent with other products from the same manufacturer. As with similar HP products, this item is not a disappointment.
HP CalcPad 200 Calculator and Numeric Keypad is discontinued. Do not buy this product
Marilyn Baldini "Mrs. B", Amazon
14 August 2013
Summary: HP CalcPad 200 Calculator and Numeric Keypad is discontinued and does not have any drivers available for it. So it is useless. I would think that if you are going to sell items like these, that they are current and not obsolete. After contacting HP for help and told that the drivers were not available it was obvious that I wasted money buying it.
Summary: Device requires driver and the website listed in the product's user guide is not operational. HP's standard website only provides a copy of the useless manual. Even when tried to call the 800 customer service number, the person said just to try to log in to their website daily to see if the driver is available. Ridiculous.
Summary: The calculator works as a calculator, but so do the ones you can buy at the Dollar Store. The Hewlett-Packard keypad does not work with my Vista platform on my computer. I have an HP laptop, but the calculator does not work. I will give Amazon FIVE stars for crediting my account, for the vendor who sold this to me would not answer my emails, nor would he address my complaint.