I was finally able to get Beelink support  - They said the Seagate Baracuda 2TB 2.5 was not compatible with the U57.  This drive was $76, instead, they recommended a Crucial CT2000MX500SSD 2TB SSD Drive @ $225.This mini-computer should run and recognize any SATA drive.  I did manage to get a Toshiba 360GB HDD drive to work after much trial and error with the BIOS settings.Can't recommend this for high-volume storage on the internal HDD.I did connect an external 1TB SSD to the USB 3.0 Type C port and it works without a flaw.Beelink should do better in Hard Disk storage selection and interoperability with any SATA drive.