HP DC7900 - Manual (Page 56)

LightScribe DVD Writer LightScribe DVD Writer LightScribe DVD Writer LightScribe DVD Writer
Drive
Drive Drive Drive
Orientation Orientation Orientation Orientation Either horizontal or vertical
Interface type Interface type Interface type Interface type SATA/ATAPI
Disc recording capacity Disc recording capacity Disc recording capacity Disc recording capacity Up to 8.5 GB DL or 4.7 GB standard
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 Weight Weight Weight (max) 0.42 lb (190 g)
Write speeds Write speeds Write speeds Write speeds DVD-RAM DVD-RAM DVD-RAM DVD-RAM Up to 5X
DVD-R DL DVD-R DL DVD-R DL DVD-R DL Up to 4X
DVD+R DVD+R DVD+R DVD+R Up to 8X
DVD+RW DVD+RW DVD+RW DVD+RW Up to 4X
DVD+R DL DVD+R DL DVD+R DL DVD+R DL Up to 4X
DVD-R DVD-R DVD-R DVD-R Up to 8X
DVD-RW DVD-RW DVD-RW DVD-RW Up to 6X
CD-R CD-R CD-R CD-R Up to 24X
CD-RW CD-RW CD-RW CD-RW Up to 16X
Read speeds Read speeds Read speeds Read speeds DVD-RAM DVD-RAM DVD-RAM DVD-RAM Up to 5X
DVD-RW, DVD+RW DVD-RW, DVD+RW DVD-RW, DVD+RW DVD-RW, DVD+RW Up to 8X
DVD-R DL, DVD+R DL DVD-R DL, DVD+R DL DVD-R DL, DVD+R DL DVD-R DL, DVD+R DL Up to 6X
DVD+R, DVD-R DVD+R, DVD-R DVD+R, DVD-R DVD+R, DVD-R Up to 8X
DVD-ROM DL, DVD- DVD-ROM DL, DVD- DVD-ROM DL, DVD- DVD-ROM DL, DVD-
ROM
ROM ROM ROM
Up to 8X
CD-ROM, CD-R CD-ROM, CD-R CD-ROM, CD-R CD-ROM, CD-R Up to 24X
CD-RW CD-RW CD-RW CD-RW Up to 24X
Access time Access time Access time Access time
(typical reads, including
settling) Random Random Random Random DVD: < 140 ms (typical), CD: < 125 ms
(typical)
Full Stroke Full Stroke Full Stroke Full Stroke DVD: < 250 ms (seek), CD: < 210 ms (seek)
Stop Time Stop Time Stop Time Stop Time < 4 seconds
Cache Buffer Cache Buffer Cache Buffer Cache Buffer 2 MB (minimum)
Data Transfer Modes Data Transfer Modes Data Transfer Modes Data Transfer Modes ATA PIO mode 4 (16.7 MB/s); ATA Multi-word
DMA mode 2 (16.7 MB/s); ATA UltraDMA Mode
3 (44.4 MB/s - default)
Power Power Power Power Source Source Source Source Four-pin, DC power receptacle
DC Power Requirement DC Power Requirement DC Power Requirement DC Power Requirement 5 VDC ± 5%-100 mV ripple p-p
12 VDC ± 5%-200 mV ripple p-p
DC Current DC Current DC Current DC Current 5 VDC (< 1000 mA typical, 1600 mA
maximum)
12 VDC (< 600 mA typical, 1400 mA
maximum)
Total Drive Power Total Drive Power Total Drive Power Total Drive Power
(standby mode) < 2.5 Watt
Audio output Audio output Audio output Audio output Line-Out Line-Out Line-Out Line-Out 0.7 VRMS
Signal-to-Noise Ratio Signal-to-Noise Ratio Signal-to-Noise Ratio Signal-to-Noise Ratio 74 dB
Channel Separation Channel Separation Channel Separation Channel Separation 65 dB
QuickSpecs
HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC
Technical Specifications - Optical Storage
DA - 13029 North America — Version 15 — March 30, 2009 Page 56