Key features 1 530 mbs throughput and 129 000 iops two internal cache ports for io acceleration scalable design up to 1056tb raw capacity virtualization ready centralized data storage backup sharing recovery the qnap tvs 471u featuring the easy to use qts operating system provides a reliable and scalable nas solution to fulfill data backup file synchronization and remote access the tvs 471u is 10gbe ready delivers exceptional performance and supports cross platform file sharing