Esata interface of Wang Biao hard disk box

When it comes to the interface of external storage devices (such as mobile hard disks), people will invariably think of USB2.0 or IEEE 1394. Although the data transmission rate of these two interfaces has reached 480Mpbs/400Mbps, they can't really exert the maximum potential of hard disk and other devices. This is because both USB2.0 and IEEE 1394 mobile hard disk must use bridge chip to realize interface conversion, which will undoubtedly greatly affect the performance of the device. Nowadays, a brand-new interface technology has quietly come to everyone-ESATA, whose characteristics can be summarized in one sentence: 6 times faster than USB2.0!

To use eSATA function, your PC must have two conditions, one is that your motherboard must have a SATA2 interface, and the other is that you must have an external eSATA adapter. For example, at present, Huaqing 775XFire-e SATA motherboard has integrated an eSATA adapter, or you can buy a high point to launch an external eSATA adapter: if you have these two conditions, then you only need to connect the SATA interface with the eSATA interface with a SATA data cable to realize the ESATA function of your motherboard.

Note: When using eSATA function, you need to replace the external hard disk, that is, the jumper. At present, official website, a hard disk manufacturer, has provided specific jumper guides.

The full name of eSATA is external serial ATA. Namely: external serial ATA, look, it is the external extension specification of SATA interface. In other words, eSATA is an "external" version of SATA, which is used to connect external rather than internal SATA devices. For example, the motherboard has an e SATA interface, so it is convenient to connect the SATA hard disk with the eSATA interface of the motherboard without opening the chassis to replace the SATA hard disk.

Compared with SATA interface, eSATA has some changes in hardware specifications, and metal shrapnel is installed at the connection of data line interface to ensure the firmness of physical connection. The original SATA uses L-shaped plug to distinguish the interface direction, while eSATA uses different thicknesses and grooves at the upper and lower ends of the plug to prevent wrong insertion, and also supports hot plugging. Although the interface mode has been changed, the physical specifications of the bottom layer of eSATA have not changed, and 7-pin data lines are still used, so compatibility with SATA devices can be achieved only by changing the interface. However, eSATA only provides data interface and lacks power supply.