Free Express Shipping! Synology 8TB HAT5310 SATA III 3.5" Internal Enterprise HDD 8TB Storage Capacity, 3.5" Form Factor, SATA III 6 Gb/s Interface, 256MB Cache, 7200 rpm, Up to 230 MB/s Sustained Transfer Rate, 2.5 Million Hours MTTF, 550TB Yearly...