HP Slimline 450-a30 Desktop Computer The HP Slimline 450-A30 desktop computer is powered by the AMD E1 Accelerated Dual-Core processor for the speed you need. 4GB of memory is available to run your programs. Memory is expandable up to 16GB. Additional memory is sold separately. 500GB hard drive provides ample storage space hold documents, photos and songs. Wireless-N (802.11b/g/n) for high-performance, cable-free networking. Access wireless networks to share files, surf the Web and exchange email. Features Microsoft Windows 8.1 operating system. / Features 2 USB 3.0 ports for ultra-fast data transfers. USB 3.0 is up to 10 times faster than USB 2.0, yet fully compatible with USB 2.0.