Protect your existing IT investments with the cost-effective HP Pro Book 645, that integrates with your legacy devices & is equipped with the security & productivity features. Ideal for professionals in corporate settings or small to medium businesses, wanting an affordable combination of innovation, essential security & multimedia capabilities. ** Utilize your existing IT infrastructure** Legacy features on the HP Pro Book 645 like an optional optical drive, a standard VGA port, & an RJ-45 connection help you get the most out of your existing IT investments. ** Create a full-featured experience** 6th or 7th generation AMD APUs, robust DDR4 memory, & professional-grade peripheral devices like the HP Ultra Slim dock create a full-featured budget-friendly experience. ** Strong security easily managed** Help protect & manage your PCs with business-class security & manageability solutions. TPM, HP BIOSphere Gen 3 & HP Client Security Gen 3 help guard data while global configuration across 180 countries simplifies management. ** Business-ready collaboration** Impressive collaboration tools like Skype for Business, bi-directional HP Noise Cancellation Software, HP Audio Boost, & a 720p webcam make you ready for collaboration on the go.