4 TB internal hard drive delivers high‑capacity storage with a 6 Gb/s SATA III interface and 7,200 RPM spin speed for fast data access. Its 3.5″ form factor fits standard server bays, while the 128 MB cache improves read/write performance. Lightweight at 1.36 kg and dual‑power compatible (5/12 V), it supports flexible deployment in enterprise environments.