The maximum storage capacity of the hard disk, usually measured in bytes e.g. GB.
The rotational speed of a hard disk expressed in rotations per minute. The faster the better.
Interface ports to connect pieces of equipment. USB (Universal Serial Bus) has become the most popular wired interface to connect peripherals. USB 2.0 supports speeds up to 480 Mbit/s (USB 1: 12 Mbit/s). The interface FireWire is also known as the IEEE 1394 standard. Enhanced IDE (EIDE)is sometimes referred to as Fast ATA, Fast IDE or ATA-2.
Characteristics of the device.
HDD number of cylinders
The average duration before a device can start with a job (for example reading a file from a hard disk).
Statistical model used to indicate product/mechanism reliability; expressed in hours and percentage of duty cycle. This number (in hours) does not indicate the mean time before failure for a single unit/mechanism.
Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.
The amount of electricity that is consumed when the product is on standby.
Defines the range of operating voltages available
The minimum and maximum temperatures at which the product can be safely operated.
5 - 55 °C
8 - 90%
Environmental requirements for vibration in operating mode
Environmental requirements for vibration in non-operating mode
Environmental requirements for optimal protection from impact in operating mode
Environmental requirements for optimal protection from impact in non-operating mode
The measurement or extent of something from side to side.
The measurement of the product from head to foot or from base to top.
The distance from the front to the back of something.
Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
Level of sound pressure per ISO 9614-1.
寸法 （幅 x 奥行 x 高さ）
Dimensions of the product (Width x Depth x Height).
69.85 x 100 x 9.5 mm
The colour e.g. red, blue, green, black, white.
The product is built in.
Rates at which data can be transferred. May vary according to network configurations.