Optional User upgradeable expansion packs (xPak) that incude I/O serial, VGA, LAN and USB ports as well as DVD and Blu-Ray optical drives, authentication readers, and even AMD Radeon™ Pro WX 4150 discrete graphic expansion packs are available to customize your exact requirement needed today.  And, in the future if you need changes your original configuration, no problem, just swap in or swap out the xPak you need.