Synology 8TB 3.5' SATA HDD High-performance, reliable hard drives for Synology systems Enterprise storage drives for Synology systems Synology HAT5300 HDD offers class-leading performance thanks to tight integration with DSM and Synology hardware. With over 400,000 hours of in-house validation testing and backed by Synology’s 5-year limited warranty1, the HAT5300 series brings unmatched reliability to Synology deployments.