WD

As of 2010, a typical 7,200 RPM desktop HDD has a disk-to-buffer data transfer rate up to 1030 Mbit/s. Access time · Seek times & characteristics · Rotational latency · Data transfer rate

You need to research the drive using the model number. Tap +R (e.g. Run) and type or paste in devmgmt.msc then click OK.

There are many ways to measure Revolutions per minute (RPM), which is a measurement of how many times the disc spins every sixty seconds.

RPM measures how many revolutions a computer's hard drive platter makes in a single minute. The higher the RPM, the faster the data will be accessed.

RPM is a measure of the speed at which a computer's hard drive spins. It refers to the number of times the disk platters rotate within a minute.

RPM is a measure of the speed at which a computer's hard drive spins. It refers to the number of times the disk platters rotate within a minute.

RPM stands for rotations per minute, which indicates how many times the platter in a disk drive can complete a 360-degree rotation each minute.

Hard drives have been engineered with spin rates as low as 1200 RPM and as high as 15K RPM.

... HDD的馬達轉得多快，一定會有物理的運轉極限，轉速大約落在4200 RPM至15,000 RPM之間，家用的轉速大約落在4200 RPM至7200 RPM，更高的轉速為伺服器 ...