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The ASUS CD-S400 is a typical CLV-based drive, with the exception being that its spindle speed is higher than most other drives available. This translates into the "maximum of 40x" that the drive is rated at.
Here's the rest of the drive's impressive specs:
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Interface |
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Drive Interface Type |
IDE: |
ATAPI/Enhanced IDE supports PIO mode 4, multi-word DMA mode2, ultra DMA/33 |
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Disc Interface Type |
Support format: |
Audio/video CD, CD-ROM(mode 1 & mode 2), mixed mode, CD-ROM/XA(mode 1 & mode 2), CD-I, photo CD(single & multi-session), Karaoke CD, CD extra, I-Trax, CD-R, CD-RW |
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size: |
8 cm and 12 cm |
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Performance |
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Disc Access |
Disc Reading Rate: |
40x maximum (2800~6000 KB/sec) |
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Average Access Time: |
75ms |
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Data Buffer: |
128K bytes |
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Audio |
Signal To Noise Ratio: |
70 dB typically |
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Headphone Level: |
>=0.6Vims at 1 kHz |
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Operating System |
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OS Compatibility |
MicrosoftTM: |
DOS 6.xx, Windows 3.1x/95/98/NT |
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IBMTM: |
OS/2 Warp 3.0 or later |
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NovellTM: |
Netware |
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SCOTM: |
Unix |
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Operating Conditions |
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Temperature |
In Use: |
5C to 45C |
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Not In Use: |
-20C to 60C |
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Humidity |
In Use: |
20% to 80% (noncondensing) |
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Not In Use: |
20% to 90% (noncondensing) |
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Physical Characteristics |
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Dimension |
Width: |
149 mm (5.87 inches) |
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Height: |
41.5 mm (1.63 inches) |
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Depth: |
197 mm (7.76 inches) |
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Weight: |
Appro. 1Kg (2.2 lb.) |
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Power Requirement |
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Required Voltage |
DC: |
+5V(+/- 5%), +12V(+/- 10%) |
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Strong stats to say the least, particularly the 75ms access time and the 6000KB/sec maximum data throughput rate. As you'd expect from a new CD-ROM, the CD-S400 can read a disc based on just about any format, and also offers full UltraDMA/33 compatibility for superior bandwidth support. Where the UDMA support really manifests itself is in CPU utilization, as the CD-S400 posted one of the lowest CPU utilization rates we've seen.
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