HP Compaq dc7900 CMT Specifications page 57

QuickSpecs
Technical Specifications - Optical Storage
SATA DVD-ROM Slim SATA DVD-ROM Slim SATA DVD-ROM Slim SATA DVD-ROM Slim
Drive Drive Drive Drive
Height Height Height Height
Orientation Orientation Orientation Orientation
Interface type Interface type Interface type Interface type
Dimensions (W x H x D) Dimensions Dimensions Dimensions
Weight (max) Weight Weight Weight
Read speeds Read speeds Read speeds Read speeds
Access time Access time Access time Access time
(typical reads, including
settling)
Power Power Power Power
Audio output Audio output Audio output Audio output
Environmental (all Environmental Environmental Environmental
conditions non-
condensing)
DA - 13029 North America — Version 11 — February 9, 2009
12.7mm
Either horizontal or vertical
SATA/ATAPI
5.0 x 0.5 x 5.0 in (128 x 13.6 x 129 mm)
0.42 lb (190 g)
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
DVD-ROM DVD-ROM DVD-ROM DVD-ROM
CD-ROM, CD-R CD-ROM, CD-R CD-ROM, CD-R CD-ROM, CD-R
CD-RW CD-RW CD-RW CD-RW
Random DVD Random DVD Random DVD Random DVD
Random CD Random CD Random CD Random CD
Data Transfer Modes Data Transfer Modes Data Transfer Modes Data Transfer Modes
Source Source Source Source
DC Power Requirement DC Power Requirement DC Power Requirement DC Power Requirement
DC Current DC Current DC Current DC Current
Total Drive Power Total Drive Power Total Drive Power Total Drive Power
(standby mode)
Line-Out Line-Out Line-Out Line-Out
Signal-to-Noise Ratio Signal-to-Noise Ratio Signal-to-Noise Ratio Signal-to-Noise Ratio
Channel Separation Channel Separation Channel Separation Channel Separation
Temperature Temperature Temperature Temperature
Relative Humidity Relative Humidity Relative Humidity Relative Humidity
Maximum Wet Bulb Maximum Wet Bulb Maximum Wet Bulb Maximum Wet Bulb
Temperature (operating) Temperature Temperature Temperature
HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC
Up to 4X
Up to 8X
Up to 24X
Up to 24X
DVD: < 140 ms (typical), CD: < 125 ms
(typical)
DVD: < 250 ms (seek), CD: < 210 ms (seek)
ATA PIO mode 4 (16.7 MB/s); ATA Multi-word
DMA mode 2 (16.7 MB/s)
Four-pin, DC power receptacle
5 VDC ± 5%-100 mV ripple p-p
5 VDC - <1000 mA typical, < 1600 mA
maximum
< 2.5 Watt
0.7 VRMS
74 dB
65 dB
41° to 122° F (5° to 50° C)
5% to 85%
86° F (30° C)
Page 57