What is the serial port hard drive?

The hard drive using the SATA (serial ATA) interface is also called a serial drive. In the 2001, the Serial ATA Commission, made up of Intel, APT, Dell, IBM, Seagate and Serial, officially established the ATA 1.0 specification, and in 2002, although serial ATA related equipment was not officially listed, serial The ATA Commission has preempted the Serial ATA 2.0 specification. Serial ATA uses serial connection, the Serial ATA bus uses the embedded clock signal, has the stronger error correcting ability, compared to the past its biggest difference is can carry on the transmission instruction (not only the data) to examine, if discovers the error will automatically correct, this greatly enhances the data transmission reliability. The serial interface also has the advantages of simple structure and hot-swappable support.

New Hard Disk Interface

Serial disk is a kind of new type of hard disk interface which is completely different from parallel ATA, which is well-known for transmitting data by serial way.

Compared to parallel ATA, it has a lot of advantages. First, the Serial ATA transmits data serially, and only 1 bits of data are transmitted at a time. This reduces the number of pins in the SATA connector, making the number of cables less and more efficient. In fact, serial ATA can do all of its work with only four pins, which are used to connect cables, connect ground wires, send data and receive data, and such architectures can reduce system energy consumption and reduce system complexity.

Second, Serial ATA has a higher starting point and greater development potential, and Serial ATA 1.0 defines a data-transfer rate of up to 150mb/s, which is higher than the most recent parallel ATA (that is, ata/133) to achieve the highest data transmission rate of 133MB/S, while Serial ATA 2.0 of the data transmission rate will reach 300mb/s, the final SATA will achieve 600mb/s maximum data transmission rate.