HP Compaq dc7900

SATA Slim SuperMulti
LightScribe DVD Writer
Drive
Height 12.7mm height
Orientation Either horizontal or vertical
Interface type SATA/ATAPI
Disc recording capacity Up to 8.5 GB DL or 4.7 GB standard
Dimensions (W x H x D) 5.0 x 0.5 x 5.0 in (128 x 13.6 x 129 mm)
Weight (max) 0.42 lb (190 g)
Write speeds DVD-RAM Up to 5X
DVD-R DL Up to 4X
DVD+R Up to 8X
DVD+RW Up to 4X
DVD+R DL Up to 4X
DVD-R Up to 8X
DVD-RW Up to 6X
CD-R Up to 24X
CD-RW Up to 16X
Read speeds DVD-RAM Up to 5X
DVD-RW, DVD+RW Up to 8X
DVD-R DL, DVD+R DL Up to 6X
DVD+R, DVD-R Up to 8X
DVD-ROM DL, DVD-ROM Up to 8X
CD-ROM, CD-R Up to 24X
CD-RW Up to 24X
Access time
(typical reads, including
settling)
Random DVD: < 140 ms (typical), CD: < 125 ms (typical)
Full Stroke DVD: < 250 ms (seek), CD: < 210 ms (seek)
Stop Time < 4 seconds
Cache Buffer 2 MB (minimum)
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 Source Four-pin, DC power receptacle
DC Power Requirement 5 VDC ± 5%-100 mV ripple p-p
12 VDC ± 5%-200 mV ripple p-p
DC Current 5 VDC (< 1000 mA typical, 1600 mA maximum)
12 VDC (< 600 mA typical, 1400 mA maximum)
Total Drive Power
(standby mode)
< 2.5 Watt
QuickSpecs
HP Compaq dc7900 Business PC
Technical Specifications - Optical Storage
DA - 13029 Canada — Version 29 — March 7, 2011 Page 57