The WD Red Pro WD142KFGX is a 14 TB 3.5-inch NAS hard drive for multi-bay NAS systems, storage arrays, and 24/7 continuous operation. It operates at 7,200 rpm, has a 512 MB cache, and achieves speeds of up to 265 MB/s via SATA 6 Gb/s.

As a drive in the Red Pro series, it is designed for commercial NAS environments with up to 24 drive bays, supports a workload of up to 300 TB per year, and has an MTBF of 1 million hours. CMR recording, NASware 3.0, and rotational vibration sensors ensure stable performance in RAID systems. The helium-filled enclosure provides high capacity with low power consumption. Western Digital provides a limited 5-year warranty.