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PATA DVD-ROM Slim
PATA DVD-ROM SlimPATA DVD-ROM Slim
PATA DVD-ROM Slim
Drive
DriveDrive
Drive
Height
HeightHeight
Height
12.7mm
Orientation
OrientationOrientation
Orientation
Either horizontal or vertical
Interface type
Interface typeInterface type
Interface type
PATA/ATAPI
Dimensions
Dimensions Dimensions
Dimensions
(W x H x D)
5.0 x 0.5 x 5.0 in (128 x 13.6 x 129 mm)
Weight
WeightWeight
Weight
(max)
0.42 lb (190 g)
Read speeds
Read speedsRead speeds
Read speeds
DVD+R/-R/+RW/
DVD+R/-R/+RW/DVD+R/-R/+RW/
DVD+R/-R/+RW/
-RW/+R DL /-R DL
-RW/+R DL /-R DL-RW/+R DL /-R DL
-RW/+R DL /-R DL
Up to 4X
DVD-ROM
DVD-ROMDVD-ROM
DVD-ROM
Up to 8X
CD-ROM, CD-R
CD-ROM, CD-RCD-ROM, CD-R
CD-ROM, CD-R
Up to 24X
CD-RW
CD-RWCD-RW
CD-RW
Up to 24X
Access time
Access timeAccess time
Access time
(typical reads, including
settling)
Random DVD
Random DVDRandom DVD
Random DVD
DVD: < 140 ms (typical), CD: < 125 ms
(typical)
Random CD
Random CDRandom CD
Random CD
DVD: < 250 ms (seek), CD: < 210 ms (seek)
Data Transfer Modes
Data Transfer ModesData Transfer Modes
Data Transfer Modes
ATA PIO mode 4 (16.7 MB/s); ATA Multi-word
DMA mode 2 (16.7 MB/s)
Power
PowerPower
Power
Source
SourceSource
Source
Four-pin, DC power receptacle
DC Power Requirement
DC Power RequirementDC Power Requirement
DC Power Requirement
5 VDC ± 5%-100 mV ripple p-p
DC Current
DC CurrentDC Current
DC Current
5 VDC - <1000 mA typical, < 1600 mA
maximum
Total Drive Power
Total Drive PowerTotal Drive Power
Total Drive Power
(standby mode)
< 2.5 Watt
Audio output
Audio outputAudio output
Audio output
Line-Out
Line-OutLine-Out
Line-Out
0.7 VRMS
Signal-to-Noise Ratio
Signal-to-Noise RatioSignal-to-Noise Ratio
Signal-to-Noise Ratio
74 dB
Channel Separation
Channel SeparationChannel Separation
Channel Separation
65 dB
Environmental
EnvironmentalEnvironmental
Environmental
(all conditions non-
condensing)
Temperature
TemperatureTemperature
Temperature
41° to 122° F (5° to 50° C)
Relative Humidity
Relative HumidityRelative Humidity
Relative Humidity
5% to 85%
Maximum Wet Bulb
Maximum Wet BulbMaximum Wet Bulb
Maximum Wet Bulb
Temperature
Temperature Temperature
Temperature
(operating)
86° F (30° C)
QuickSpecs
HP Compaq dc7800 Business PC
HP Compaq dc7800 Business PCHP Compaq dc7800 Business PC
HP Compaq dc7800 Business PC
Technical Specifications - Optical Storage
DA - 12744 North America — Version 25 — May 16, 2008
Page 57