Hard disk decoupler
A hard disk decoupler is a component from computer technology and is used to reduce noise.
functionality
Hard drives are driven by a motor that causes vibrations. These are transferred to the computer housing, which then acts as a resonance body, thus increasing the operating noise of the computer. A hard disk decoupler usually consists of a rubber block that is attached to the hard disk itself and to the housing. This dampens the vibrations on the one hand and does not transmit them to the housing on the other. If a hard disk decoupler is used, the hard disk usually has to be installed in a 5¼ "slot, as it is then too wide for the 3.5" slots commonly used today.
Hard drive decouplers are available in different versions: either in the form of four individual blocks, two of which are mounted on each side of the hard drive housing, or as larger blocks, which often also contain a heat sink and thus not only reduce the noise but also the operating temperature.
Various studies have shown that with some hard disks with some hard disk decouplers, the access times are longer. This is due to the changed natural resonance of the hard drives mounted in this way. Hard drives are designed to deliver the best performance when screwed tight. With a soft suspension, vibrations can build up, which can increase access times. The extent to which a hard disk decoupler can impair the service life of a hard disk has not yet been adequately investigated. Such examinations are very difficult and poorly representative, since the result depends on the hard disk model, model of the decoupler, the computer case used and all other individual equipment in the computer case.