Replace your NVIDIA SHIELD's 500GB hard drive with a speedier SSD - Android Community
Nvidia Shield TV 1st Generation Hard Drive Replacement - iFixit Repair Guide
Yes! I finally upgraded my 2015 Pro to an SSD. Fellas let me tell you this is an easy upgrade anyone can do. It's just time consuming cloning the HDD. : r/ShieldAndroidTV
ATV Workshop: Nvidia Shield TV Pro drive replacement / SSD upgrade step-by-step guide - YouTube