What are the transmission speeds of IDE, SATA and SATA2? ! !

IDE is also called ATA interface. From the beginning to now, * * has released seven different versions, namely: ATA-1 3.3MB/s, ATA-2 16.6MB/S, ATA-3 16.6MB/s, ATA-4 33MB/s and ATA-5 66.6 MB.

the speed of p>SATA is 15mb/s; The speed of SATA2 is 3 MB/s. But these are theoretical external transmission speeds, and the actual speed depends on the internal transmission speed. Now the internal transmission speed of mechanical hard disk can't even reach 1 MB/s.

extended data

SATA has many advantages over IDE hard disk:

1. Transmission speed

SATA hard disk has higher transmission speed than IDE hard disk. SATA 1. can provide a peak transmission rate of 15MB/s, while SATA 2. can reach 3MB/s, and 3. can be increased to 6 MB/s..

2. Cables

IDE hard disk needs PATA4-pin data cable, while SATA cables are few and thin, and the transmission distance can be extended to 1 meter, which makes it easier to install equipment and wiring in the machine, and is also beneficial to heat dissipation in the chassis.

3. Power consumption

SATA hard disk can work with a current of 5 mA, which reduces the power consumption compared with IDE hard disk system.

4. Compatibility

SATA can be backward compatible with PATA devices by using a multi-purpose chipset or serial-parallel converter, without upgrading the operating system or other changes.

5. Simple setup

IDE hard disks need to be set with jumpers to set the master and slave disks, while SATA does not need to set the master and slave disk jumpers, and the BIOS will number them in the order of 1, 2 and 3.

6, hot plug

SATA also supports hot plug, which can be used like a USB flash drive, while IDE hard disk does not support hot plug.