QuickSpecs

HP Compaq dc7800 Business PC

Technical Specifications - Optical Storage

Disc capacity

Dimensions (W x H x D)

Single layer: Up to 4.7 GB (6 times capacity of CD-ROM)

Double layer: Up to 8.5 GB (12 times capacity of CD-ROM) 5.9 x 1.7 x 8.0 in (15.0 x 4.4 x 20.3 cm)

Weight (max)

Read speeds

Removable Storage –

Media Compatibility –

DVD-ROM

Access times

(typical reads, including setting)

Power

Environmental (all conditions non-condensing)

2.6 lb (1.2 kg)

DVD+R/-R/+RW/ -RW/+R DL /-R DL

DVD-ROM

DVD-RAM CD-ROM, CD-R CD-RW Media

CD-ROM CD-R CD-RW DVD-ROM DVD-ROM DL DVD-RAM DVD+R

DVD+R DL

DVD+RW DVD-R DVD-RW DVD-R DL Random

Full Stroke

Cache Buffer

Data Transfer Modes

Source

DC Power Requirement

DC Current

Temperature

Relative Humidity

Maximum Wet Bulb

Temperature

Up to 8X

Up to 16X

Up to 4X

Up to 48X

Up to 32X

ReadWrite

YesNo

YesNo

YesNo

YesNo

YesNo

YesNo

YesNo

YesNo

YesNo

YesNo

YesNo

YesNo

DVD: < 140 ms (typical), CD: < 125 ms (typical)

DVD: < 250 ms (seek), CD: < 210 ms (seek)

2 MB (minimum)

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)

SATA DC power receptacle

5 VDC ± 5%-100 mV ripple p-p

12 VDC ± 5%-200 mV ripple p-p

5 VDC – <1000 mA typical, < 1600 mA maximum

12 VDC –< 600 mA typical, < 1400 mA maximum

41° to 122° F (5° to 50° C)

10% to 90% 86° F (30° C)

DA - 12744 North America — Version 25 — May 16, 2008

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HP Gtech G-Technology G-Drive Mobile 1 Tb External Hard Drive DC7800 manual Dvd-Rom