For the right combination of capacity and long battery life in a lightweight design, choose the HGST Travelstar Z5K500. With a speed of 5400 RPM, it is the ideal solution for mobile devices, security systems, and gaming consoles. Innovations such as Advanced Format Technology increase drive capacities and improve data reliability. The eco-friendly drive is efficient and halogen-free. Replaces standard 95mm hard drives with more storage in a slimmer, lightweight blunt. Bust Design Specifications. Travelstar Z5K500 Drive Family. Form Factor 25. Capacity 500GB 500 x 1,000,000,000 bytes. Number of Platters 1. Number of Heads 2. Rotational Speed 5400 RPM. Rotational Time 1111 ms. Average Rotational Latency 556 ms. Drive Interface SerialATA600. BufferHost Maximum Speed 600 MBsec. Buffer Size 8192 KB. Typical Drive Preparation Time 35 seconds. Full Stroke Seek Time 25 ms. Width 275.000 in 275 inches. Depth 39.449 in 394 inches. Height: 2.677 in 027 inches. Spinup Power Required 900 mA. Seek Power Required 17 W. Idle Power Required 08 W. Standby Power Required 02 W. Weight 03 lbs