WD Red Provides Storage Compatible with Leading NAS Systems. With drives up to 14TB, the WD Red series offers a wide array of solutions for customers seeking reliability and performance in their NAS environments. This Western Digital WD101EFAX is a 10 TB Internal Hard Drive featuring a SATA III interface and 5400rpm rotation speed, designed for optimal performance in NAS (Network Attached Storage) devices. Its robust design ensures data integrity and consistent operation for demanding workloads.