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Asus CD-S520 52x CDROM

The ASUS CD-S520 breaks through the bottlenecks inherent in traditional CD-ROM technology with innovative solutions to sustain accuracy and stability of high-speed data transfer.  The next-generation DDSS II (Double Dynamic Suspension System II)anti-vibration design used in the ASUS CD-S520 offers unparalleled performance to match the demands of high-end systems.  DDSS II reduces vibration so that the drive's pick-up head can access data with optimum stability and accuracy.  The drive offers rotation speeds of up to 10,400rpm that read data up to 7800 KB/sec transfer rate and supports UltraDMA/33 transfer mode for minimal CPU utilization.  The unit features audio play and skip buttons on the front of the unit.

Key Features

Perfect Performance
  • Max. 52X speed data transfer rate ( 3300 ~ 7800 Kb/Sec )
  • Fast access time: less than 80 ms
  • Supporting high speed CD-Audio playback
  • Supporting high speed Digital Audio Extraction
  • Supporting Plug and Play
  • Compatible with all kinds of CD formats
  • PC 99 Certified
  • Vertical mounting available
  • User friendly audio play/skip track from front panel button
  • Power saving
  • Emergency ejection hole
  • Small CPU utilization
  • Supports Plug and Play

Unique proprietary DDSS II suspension design for better vibration control

This unique design is precisely calculated with a damper and an isolator as the first and second suspension between the core mechanism and traverse and between the traverse and loader mechanism respectively. Using special rubber materials with different levels of elasticity enpowers the stability of ASUS well-known design.

Multi-Format Support and Compatibility

  • Enhanced IDE (ATAPI) bus interface
  • Compliant with MPC level 2 & 3
  • Supporting Audio CD, CD-ROM/XA, Video CD, CD-I, Multi-session Photo CD, Karaoke CD, I-Trax, and CD-Extra
  • Supporting DOS 6.xx, Win3.1x, Win95, Win98, WinNT, WinXP, Netware, SCO UNIX, and OS/2 Warp operation systems
  • Supporting PIO mode 4, Multi-word DMA mode2 and Ultra DMA/33 mode
  • Support Multi-read (CD-R/RW disc can be read)


Data Transfer Rate
Sustained Transfer Rate 52X max CAV (3300 ~ 7800k bytes/sec.(Mode 1))
Burst Transfer Rate
  • PIO mode 4 (16.6M bytes/s max.)
  • Single-word DMA mode 2 (8.3M bytes/s max.)
  • Multi-word DMA mode 2 (16.6M bytes/s max.)
  • Ultra DMA/33 mode (33.3M bytes/s max.)
Access time
Average 1/3 Stroke 80 ms typical
Full stroke 150 ms typical
Data Buffer
Data Buffer
  • The drive has a data buffer, which is implemented for look-ahead cache.
  • This buffer has a size of 128K bytes.
Interface Standard Enhanced IDE (ATAPI) bus interface.
Data Format
Support Format
  • CD-Audio
  • CD-ROM, Mode 1 and Mode 2
  • CD-ROM XA, Mode 2, form 1 and form 2
  • CD-I
  • Trax
  • Karaoke CD
  • Photo-CD (Single & Multi-session)
  • Video CD
  • Mixed Mode CD (Audio combined data)
  • CD-Extra
Data/Audio Capacity
Data Capacity
  • 656 Mbytes (Mode 1)
  • 748 Mbytes (Mode 2)
Playing Time 74 minutes and 42 seconds
Front panel
Front Panel
  • An Open/Close/Stop button
  • An Audio Play/Skip button
  • A Volume control knob
  • A green LED, it indicates POWER ON & BUSY
  • Emergency ejection hole
Audio Specifications
Number of Channels 2 (Stereo)
Distortion 0.2 % max. (at 1kHz)
Signal to Noise Ratio 70dB
Output Levels Headphone 0.7 V rms typical
Line out 0.7 V rms typical
Output terminals Headphone 3.5 mm
Line Out Jack 4-pin Terminal
Digital out 2-pin Terminal
Operation System Compatibility DOS 6.xx, Windows 3.x, Windows 95, Windows 98, Windows NT, Windows XP, Netware, SCO UNIX, OS/2 Warp MPC level 3 compatible.
Temperature Operating 5oC to 45oC
Non-operating -20oC to 60oC
Humidity Operating 20% to 80% (Non-Condensing)
Non-Operating 20% to 90% (Non-Condensing)
Vibration Operating 0.3G peak
Non-operating 2.0G peak
Shock Storage Less than 100G at 91 cm high
Check unit for satisfactory electrical operation and no physical damage. Note: Each 3 directions.
Acoustic Microphone located 1M above the drive.
Access mode 60 dB max.
MTBF 120,000 Power On hours (POH)
POH Read and Access duty is 20%
Power Requirements
Voltage +5V DC +12V DC
Tolerance 5% 10%
Ripple 150m Vpp 300m Vpp
Rating 900ma 1500ma
Mechanical Specifications
Outer Dimensions Height 41.5 mm
Width 149.0 mm
Depth 197.5 mm
Weight 976g typical

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