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Product comparison · 2 optical disc drives

ASUS DRW-20B1S optical disc drive Internal Black vs ASUS DVD-E818A2T optical disc drive Internal Black

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  • 11specifications compared
  • 8differ
  • 3identical
  • 34known for one product only

Key differences

  • Drive device, buffer size
    • 2 MB
    • 0.198 MB
  • CD-R read speed
    • 40x
    • 48x
  • CD-RW read speed
    • 40x
    • 32x
  • DVD-R Double Layer read speed
    • 12x
    • 8x
  • DVD+R Double Layer read speed
    • 12x
    • 8x
  • DVD read speed
    • 16x
    • 18x
  • Weight
    • 610 g
    • 645 g

Side by side

Differences highlightedShow differences only
45 specifications
A

ASUS

DRW-20B1S optical disc drive Internal Black

Model DRW-20B1S

View product
B

ASUS

DVD-E818A2T optical disc drive Internal Black

Model DVD-E818A2T

View product
Designidentical
InternalYesYes
Product colourBlackBlack
MountingKnown for oneVertical/Horizontal
Performance1 differ
Drive device, buffer sizeDiffers2 MB0.198 MB
InterfaceKnown for oneSerial ATA
Optical disc diameterKnown for one120 mm
Mean time between failures (MTBF)Known for one100000 h
Writing speedidentical
CD write speedKnown for one48x
CD rewrite speedKnown for one32x
DVD+R Double Layer write speedKnown for one12x
DVD+R write speedKnown for one20x
DVD+RW write speedKnown for one8x
DVD-R Double Layer write speedKnown for one12x
DVD-R write speedKnown for one20x
DVD-RAM write speedKnown for one12x
DVD-RW write speedKnown for one6x
Reading speed5 differ
CD read speed48x48x
CD-R read speedDiffers40x48x
CD-ROM read speedKnown for one48x
CD-RW read speedDiffers40x32x
DVD-R Double Layer read speedDiffers12x8x
DVD-RAM read speedKnown for one12x
DVD-ROM read speedKnown for one16x
DVD+R Double Layer read speedDiffers12x8x
DVD read speedDiffers16x18x
DVD+R read speedKnown for one10x
DVD-R read speedKnown for one10x
DVD-RW read speedKnown for one10x
DVD+RW read speedKnown for one10x
Record modesidentical
Disc-at-once (DAO)Known for oneYes
Random writeKnown for oneYes
Sequential writingKnown for oneYes
Session-at-once (SAO)Known for oneYes
Track-at-once (TAO)Known for oneYes
Weight & dimensions1 differ
WeightDiffers610 g645 g
Other features1 differ
Compatible operating systemsDiffersWindows XP/ NT/2000/VISTAWindows 2000, Windows 98, XP, Vista
Power requirementsKnown for oneDC+5V ±5%,DC+12V ±10 %
Media types supportedKnown for oneDVD-ROM,DVD+/-RW,DVD+/-R,Photo CD,Video CD,CD-Extra,CD-Text,CD-R,CD-RW,DVD-RAM
Dimensions (WxDxH)Known for one148 x 172.4 x 42.3 mm
Non-operating relative humidity (non-condensing)Known for one15 - 85%
Access timeidentical
DVD drive average random access timeKnown for one105 ms
CD-ROM drive average random access timeKnown for one95 ms
Operational conditionsidentical
Operating relative humidity (H-H)Known for one20 - 80%
Operating temperature (T-T)Known for one5 - 45 °C
Storage temperature (T-T)Known for one-20 - 60 °C

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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