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Seagate Barracuda XT Barracuda XT Series SATA Product Manual - Page 22

Barracuda XT SATA Product Manual, Rev. D, Drive Specifications

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Drive Specifications www.seagate.com caution exposing any electronic components to uncontrolled chemical pollutants and corrosive chemicals as electronic drive component reliability can be affected by the installation environment. The silver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or exposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulcanized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives. 22 Barracuda XT SATA Product Manual, Rev. D

Section	Page
Barracuda®XT	1
1.0 Introduction	9
1.1 About the Serial ATA interface	9
2.0 Drive Specifications	10
2.1 Formatted capacity	11
2.1.1 LBA mode	11
2.2 Default logical geometry	11
2.3 Recording and interface technology	12
2.4 Physical characteristics	12
2.5 Start/stop times	12
2.6 Power specifications	12
2.6.1 Conducted noise	16
2.6.2 Voltage tolerance	16
2.6.3 Power management modes	16
2.7 Environmental specifications	17
2.7.1 Ambient temperature	17
2.7.2 Temperature gradient	17
2.7.3 Humidity	17
2.7.4 Altitude	17
2.7.5 Shock	18
2.7.6 Vibration	18
2.8 Acoustics	18
2.8.1 Test for Prominent Discrete Tones (PDTs)	19
2.9 Electromagnetic immunity	19
2.10 Warranty	20
2.11 Agency certification	20
2.11.1 Safety certification	20
2.11.2 Electromagnetic Compatibility (EMC)	20
2.11.3 FCC verification	20
2.12 Environmental protection	21
2.12.1 European Union Restriction of Hazardous Substances (RoHS) Directive	21
2.12.2 China Restriction of Hazardous Substances (RoHS) Directive	21
2.13 Corrosive environment	21
3.0 Configuring and Mounting the Drive	23
3.1 Handling and static-discharge precautions	23
3.2 Configuring the drive	23
3.3 Serial ATA cables and connectors	23
3.4 Drive mounting	24
4.0 SATA Interface	27
4.1 Hot-Plug compatibility	27
4.2 Serial ATA device plug connector pin definitions	27
4.3 Supported ATA commands	29
4.3.1 Identify Device command	31
4.3.2 Set Features command	35

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Barracuda XT SATA Product Manual, Rev. D

Drive Specifications

www.seagate.com

caution exposing any electronic components to uncontrolled chemical pollutants and corrosive chemicals as

electronic drive component reliability can be affected by the installation environment. The silver, copper, nickel

and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate

contaminants. Sulfur is found to be the most damaging. In addition, electronic components should never be

exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or exposed to an

ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulcanized rubber, that

can outgas corrosive compounds should be minimized or eliminated. The useful life of any electronic equipment

may be extended by replacing materials near circuitry with sulfide-free alternatives.