Just formally requesting it. My APU works great as an Arch Linux file server with a USB3 hub and 6TB of storage via external USB hard drives. That USB2.0 bus, however, is a big bottleneck.
The APU has USB2 on its hub, USB3 would require an additional controller. The CPU the APU2 is built on does include USB3, and that model is spec'd with external USB3. I'm still skeptical that this is the best platform for a storage server.