Below are answers to frequently asked questions about the Hitachi HTS725025A9A361 hard drive, based on available technical information and user discussions.
Q: What is the Hitachi HTS725025A9A361?
A: The Hitachi HTS725025A9A361 is a 2.5-inch 250GB internal hard disk drive designed for use in laptops and portable external storage enclosures. It operates at 7200 RPM and features a SATA 3Gb/s interface.
Q: What are the key specifications of this hard drive?
A: Key specifications include a storage capacity of 250GB, a rotational speed of 7200 RPM, a form factor of 2.5 inches, a SATA 3Gb/s interface, and a cache size of 16MB. The drive uses a standard 9.5mm z-height.
Q: Is this drive compatible with my laptop?
A: This drive is compatible with most laptops that accept a 2.5-inch SATA drive with a 9.5mm height. Compatibility depends on your laptop’s specific drive bay requirements and whether it supports SATA 3Gb/s or backward-compatible SATA 1.5Gb/s interfaces.
Q: What is the maximum operating temperature for this drive?
A: The maximum operating temperature for the Hitachi HTS725025A9A361 is 60 degrees Celsius (140 degrees Fahrenheit). The recommended storage temperature range is between -40 and 70 degrees Celsius.
Q: What is the average latency and seek time?
A: The average rotational latency is approximately 4.16 milliseconds for a 7200 RPM drive. The average seek time is rated around 8.5 milliseconds for read operations and 9.5 milliseconds for write operations.
Q: How much power does this drive consume?
A: Under typical read/write operations, power consumption is about 2.0 to 2.5 watts. Idle power consumption is approximately 0.8 to 1.0 watt. The drive also supports advanced power management features like low-power idle modes.
Q: Does this hard drive support SATA 6Gb/s speeds?
A: No, this drive is designed for SATA 3Gb/s speeds. It will operate at SATA 3Gb/s when connected to a SATA 6Gb/s port, but will not achieve speeds beyond its native interface limit.
Q: What is the shock tolerance for this drive?
A: Operating shock tolerance is 325 G for 2 milliseconds. Non-operating shock tolerance is 1000 G for 1 millisecond. These ratings provide basic protection during normal use and handling.
Q: How long is the expected lifespan of this hard drive?
A: The expected lifespan is typically measured in Mean Time Between Failures (MTBF) which is rated at 1.4 million hours. Actual lifespan varies based on usage conditions, temperature, and workload.
Q: Can this drive be used in a desktop computer?
A: Yes, it can be used in a desktop computer with a compatible SATA port and a 2.5-inch drive bay or an adapter bracket for a 3.5-inch bay. It requires a standard SATA data and power connection.
Q: What is the warranty period for this product?
A: Warranty periods vary by retailer and region, but typically range from one to three years. Original equipment manufacturers may offer different terms. Check the specific warranty policy provided at the time of purchase.
Q: Does this drive use Advanced Format technology?
A: No, this drive uses traditional 512-byte sectors, not Advanced Format 4K sectors. It is fully compatible with operating systems that expect standard 512-byte sector formatting.
Q: What sound level does this drive produce during operation?
A: Acoustic noise levels are typically around 2.6 to 2.8 bels during seek operations and 2.4 bels during idle. These levels are within typical ranges for 2.5-inch 7200 RPM hard drives.