Raspberry Pi: Create a Raspberry Pi-powered quad NAS with the Radxa SATA HAT
Fancy using the Raspberry Pi to create NAS but do not fancy going to the trouble of more involved projects? Well, Radxa has a solution for you. Imaginatively called the SATA HAT, the accessory allows you to connect up to four 3.5-inch drives to a Raspberry Pi or Rock Pi. Radxa has a Penta version of the SATA HAT too, but this only works with the Rock Pi because it requires PCIe M.2 connectivity.
According to Radxa, the SATA HAT utilises USB 3.0 busses on the Raspberry Pi 4 and supports 3.5-inch or 2.5-inch drives. The SATA HAT also supports USB Type-C power delivery, allowing you to connect a Raspberry Pi and 2.5-inch drives simultaneously without needing several power supplies.
Additionally, the SATA HAT supports UAPS and RAID 0/1/5. You can also add a dedicated fan and an OLED panel should you wish to do so. The manufacturer has provided a Debian package for configuring the HAT and offers a metal case to create a tidier build. Radxa is yet confirm pricing or availability, though.