https://www.seagate.com/files/www-content/product-content/ironwolf/en-us/docs/100807039n.pdf

Seagate ST4000VN006, IronWolf NAS, 4TB, 3.5″, SATA 6Gb/s, 5400RPM, Cache: 64MB, MTBF: 1,000,000 Hours, 3 Year Warranty