That's a Synology released four years ago. Contrast with a model released in February this year. Not a single drive non-Synology drive on the HCL larger than 4T

That's a Synology released four years ago. Contrast with a model released in February this year. Not a single drive non-Synology drive on the HCL larger than 4TB: https://www.synology.com/en-us/compatibility?search_by=products&model=RS2421RP%2B&category=hdds_no_ssd_trim&p=1&change_log_p=1 https://www.synology.com/en-us/compatibility?search_by=produ... It's not a hard requirement to use Synology drives, but on the newer/higher-end models the options to not use Synology drives are very limited. For example the FS2500 only has four models of SSD on the HCL and two are Synology. IMHO, the price premium for the Synology branded drives is reasonable. Pay for the validated drives. Maintaining a broad HCL is no small task. https://blog.synology.com/in-pursuit-of-reliability-hat5300-enterprise-hard-drives https://blog.synology.com/in-pursuit-of-reliability-hat5300-...