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[ INTERNAL BLU-RAY WRITER ]

Plextor PX-B940SA

Internal SATA Blu-ray writer supporting BD-R/RE and legacy DVD/CD formats. Maximum recording rates require supported media and an appropriate firmware write strategy.

Original schematic of Plextor PX-B940SA internal Blu-ray writer
ORIGINAL LOCAL SVG SCHEMATIC // NOT TO SCALE

IDENTIFICATION: Plextor PX-B940SA; verify the full product code and firmware revision before applying media specifications.

Documented specifications

Media read/write formatsReads BD-ROM, BD-R/RE, DVD-ROM, DVD±R/RW, DVD±R DL, DVD-RAM and CD-ROM/R/RW. Writes BD-R (single/dual layer), BD-RE, DVD±R/RW, DVD±R DL, DVD-RAM and CD-R/RW.
Maximum speedsBD-R up to 12× (single layer; verify dual-layer media rate separately); BD-RE up to 2×; BD-ROM up to 8× read. DVD±R up to 16×, DVD±R DL up to 8×; CD-R up to 40× and CD-RW up to 24×.
Interface and physical bayInternal 5.25-inch half-height tray drive with SATA interface (3 Gb/s class). Requires a compatible desktop bay, SATA data cable and SATA power connection.
Host and firmware compatibilityHost requires SATA optical-device support. Blu-ray playback/authoring uses separate compatible software. Plextor/PX-B940SA firmware and media strategy are specific to this mechanism; do not use firmware for another PX-B series.

Manual and technical sources

  1. Plextor PX-B940SA datasheetModel-specific product sheet for formats, interface and ratings.
  2. CDRLabs — PX-B940SA reviewDrive review and recording feature/rate discussion.
  3. CDRLabs — PX-B940SA feature detailsSupplemental technical description for the model.

Consult the product sheet and exact media code; advertised peak rates are not sustained-rate guarantees.