When the Mac Pro became available for purchase a few weeks ago, we bought a base model and have since been demonstrating upgrades with third-party components for those interested in boosting their ‌Mac Pro‌'s capabilities without having to shell out for Apple's upgrades. We covered upgrading the RAM in a ‌Mac Pro‌ in our last video, and today, we're demonstrating how to add additional SSD storage using one of the ‌Mac Pro‌'s PCIe slots. Luckily, it's easy to add additional storage if you purchase a compatible third-party SSD. Completely replacing the SSD in a ‌Mac Pro‌ with a new one requires visiting an Apple Store or an Apple Authorized Service Provider because the built-in SSD is tied to the T2 chip that provides encryption and other security benefits, but the existing storage can simply be augmented if you have a free PCIe slot. Note that what we've done here means the SSD we're installing is extra storage space and not a boot disk - it's been added in addition to the existing 256GB SSD the base ‌Mac Pro‌ ships with. Once the case is back in place and the ‌Mac Pro‌ is booted up after installing a new SSD, the drive will show up on the desktop.