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[ CD-R AND CD-RW DRIVES // IDENTIFIED MODEL ]

ASUS CRW-4012A

The CRW-4012A is an internal ATAPI writer rated 40× CD-R, 12× CD-RW and 48× CD read.

Original local schematic of the ASUS CRW-4012A internal CD recorder
MODEL-LABELLED LOCAL SCHEMATIC // NOT TO SCALE

IDENTIFICATION: The ASUS CRW-4012A is a distinct 40×/12×/48× SKU; verify the complete model label before applying firmware or media guidance.

Documented specifications

Exact modelASUS CRW-4012A
CD-R writeUp to 40×
CD-RW rewriteUp to 12×
CD readUp to 48×
Supported mediaWrites CD-R and CD-RW; reads CD-ROM and supported audio/data Compact Disc media. Disc format and session access can require compatible software.
Interface / bayInternal E-IDE/ATAPI, 5.25-inch half-height optical bay.
Host compatibilityUse an IDE/ATAPI-capable host and authoring software that supports this recorder. Check the ASUS manual's system and DMA requirements before installing on a legacy system.
Firmware / jumperUse CRW-4012A-specific firmware only and record the current version. Select Master, Slave or Cable Select as documented for the unit and match the IDE channel; do not assume a nearby ASUS model uses the same jumper block.

Compatibility and preservation

  • Maximum speeds depend on blank media certification, recording mode and software support.
  • Record the unit label, firmware, IDE host, jumper setting, media code and verification results.
  • Keep verified disc images with checksums and avoid cross-flashing firmware from other ASUS recorders.

Manufacturer and manual references

  1. ASUS CRW-4012A official support and manual pageManufacturer-hosted model documentation locator.
  2. ASUS CRW-4012A 40×/12×/48× user manualModel-specific installation and operation manual copy.