Acer X270 User Manual
91
Appendix A
Optical Drive
Super Multi
Item
Specification
Vendor HLDS
PLDS
Sony
Model name
GH-15F
DH-16A3S
AD-7203S
Drive type
Super Multi
DVD-ROM
Super Multi
Write Speed
—
—
DVD-R: 20x max. DVD
+R: 20x max.
DVD-RW: 6x max. DVD
+RW: 8x max.
DVD-R DL: 12x max.
DVD +R9: 8x max.
DVD-RAM: 12x max.
CD-R: 48x max. CD-RW:
32x max.
+R: 20x max.
DVD-RW: 6x max. DVD
+RW: 8x max.
DVD-R DL: 12x max.
DVD +R9: 8x max.
DVD-RAM: 12x max.
CD-R: 48x max. CD-RW:
32x max.
Read Speed
—
—
DVD: 16x max.
CD: 48x max.
CD: 48x max.
Data Transfer Rate
—
—
—
Access Time
—
—
DVD: 160 ms
CD: 140 ms
CD: 140 ms
Buffer Size
4 MB
4 MB
2 MB
Interface Type
Serial ATA
Serial ATA
Serial ATA
DVD-ROM
Item
Specification
Vendor HLDS
PLDS
Model name
GDR-H20N
DH-16D2S
Drive type
DVD-ROM
DVD-ROM
Write Speed
—
—
Read Speed
CD-ROM Max 52x
DVD-ROM Max 16x
DVD-ROM Max 16x
CD-RAM 5x
CD Max 48x
DVD Max 16x
CD Max 48x
DVD Max 16x
Data Transfer Rate
CD Max 7.8 Mbytes
DVD Max 22.1 Mbytes
DVD Max 22.1 Mbytes
—
Access Time
(Random) CD 90 ms
(Random) DVD 100 ms
(Full) CD 140 ms
(Full) DVD 160 ms
(Random) DVD 100 ms
(Full) CD 140 ms
(Full) DVD 160 ms
CD 12 ms
DVD 140 ms
DVD-RAM 150 ms
DVD 140 ms
DVD-RAM 150 ms
Buffer Size
198KB with buffer under run prevention
technology
technology
198 KB
Interface Type
Serial ATA
Serial ATA