SATA是Serial ATA的缩写，即串行ATA这是一种完全不同于并行ATA的新型硬盘接口类型，由于采用串行 方式传输数据而得名SATA总线使用嵌入式时钟信号，具备了更强的纠错能力，与以往相比其最大的区别在 于能对传输指令（不仅仅是数据）进行检查，如果发现错误会自动矫正，这在很大程度上提高了数据传输的可 靠性串行接口还具有结构简单、支持热插拔的优点图片:SATA.jpgGNDTXPTXNGNDRXNR^PGNDSATA SIGNAL1 AGND2 TXD?3 TOT4 AGND5' RXDi^；6 RXDP-1 AGNDSATA HO呂T SignalSATA PCJWERYCC33VCC33 VCC33 DGND AGND AGND 'V5■V5 ：V5 AGND Resen/e DGND V12 V12 V121CHIP-3.3^.2CHIP-3.3V3CHIP-3.3V4GND5AGND6AGND1弘HDD8SV^HDD95V-HDD10AGND-4^<-GND1312V-HDD14WHDD1512V-HDDryr□SATA HOST PowerSATA Data pinoutSATA PinOut, Data Pin # Signal Name Signal Description1 GND Ground2 A+ Transmit+3 A- Transmit-4 GND Ground5 B- Receive -6 B+ Receive +7 GND GroundSATA Power pinoutSATA PinOut, Power Pin # Signal Name Signal Description1 V33 3.3v Power2 V33 3.3v Power3 V33 3.3v Power, Pre-charge, 2nd mate4 Ground 1st Mate5 Ground 2nd Mate6 Ground 3rd Mate7 V5 5v Power, pre-charge, 2nd mate8 V5 5v Power9 V5 5v Power10 Ground 2nd Mate11 Reserved -12 Ground 1st Mate13 V12 12v Power, Pre-charge, 2nd mate14 V12 12v Power15 V12 12v PowerPATA Power pinoutIDE Power Connector Pin Out Pin # Signal Function 18 AWG Wire1 +12V DC Yellow4 +12V Return Black3 +5V Return Black4 +5V DC Red。