WD Red Pro drives are engineered to handle high-intensity workloads in 24x7 multi-user commercial and enterprise NAS environments. WD Red Pro drives deliver the performance, scalability and dependability businesses require to store, share and collaborate on large amounts of data in multi-bay RAID-optimized NAS systems. This specific model is the WD103KFBX, a 10TB internal hard drive with a 7200 RPM rotation speed and 512MB cache, utilizing Serial ATA III interface and a 3.5-inch form factor. It is designed for 24/7 operation and NAS environments, supporting CMR technology.