This is a high quality usb cable with molded connectors for the HP48 series calculators. It will allow you to load your programs from your computer to your calculator. The HP48 USB Cable comes with a standard USB connector for any computer equipped with a standard USB Port. The other cable end comes with the 4 pin HP48 Series Connector - please refer to images for more details. Link software is available on the internet for free.
We also sell a less expensive serial version of this cable.
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Download drivers here http://www.hpcalculators.com/drivers/