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Plextor PX-20TSi

Read-only internal CD-ROM reader. Specifications below identify the exact model; nearby family variants may use a different interface, mechanism, firmware, or jumper layout.

Original local schematic labeled Plextor PX-20TSi; conceptual only, not a product photograph or dimensional drawing
ORIGINAL LOCAL SVG SCHEMATIC // NOT A PHOTOGRAPH OR DIMENSIONAL DRAWING

IDENTIFICATION: Plextor PX-20TSi · verify the full label, suffix and revision against the cited manual before assigning interface, disc-format, firmware or installation characteristics.

Verified specifications

Catalog subcategoryCD-ROM readers
Exact product identifierPlextor PX-20TSi
Read speed20× maximum CD-ROM read; maximum rating is not a guarantee for a particular disc or transfer path.
Supported CD formatsCD-ROM Mode 1/2, CD-DA, CD-ROM XA, CD-I, Photo CD, Video CD and CD+G; read-only CD-ROM reader.
Host interfaceInternal SCSI (50-pin)
Host and mechanical compatibilityInternal half-height 5.25-inch tray-loading drive; needs a supported SCSI host adapter and driver. Not a slimline, ATA, or SATA drive.
Firmware / jumper caveatSet SCSI ID, parity, termination and eject behavior from the PX-20TSi operation manual. Terminate only at a physical bus endpoint; the SCSI-wide/external PX-20TSe is a different host configuration. Check drive revision and firmware string; PX-20TSi firmware is not assumed interchangeable with the PX-20TSe or nearby PX-series models.

Installation and preservation notes

  • Before connection, compare the unit label, interface connector and jumper markings with the model-specific manual. Do not power an uncertain pinout.
  • For this SCSI unit, avoid target-ID conflicts and apply bus termination only at the physical chain endpoints.
  • Keep the original firmware identity, host adapter/BIOS, driver version, disc type, read-error log and verified image checksum together during preservation work.
  • Use this record for read compatibility only: a CD-ROM reader is not evidence of disc-writing support.

Manufacturer, archive and manual sources

  1. Plextor — PX-20TSi/PX-20TSe Operation Manual (Internet Archive/Bitsavers)Archived Plextor operating manual for the model family.
  2. Plextor PX-20TSi Operation Manual — ManualsLibManual archive record with internal SCSI model identification.
  3. Plextor PX-20TSi — Stason jumper/configuration archiveArchived model configuration notes; confirm settings on the physical drive.

Sources are model manuals, manufacturer archives or technical archives. A related-family manual is identified as such; verify the exact drive label/revision before applying its jumper or firmware instructions.