# Bus Performance
SCSI

- ## Typically limited to the slowest device

- ## SCSI figures (Windows)

  - narrow SCSI-2 10MB/s (8MB/s)
  - wide SCSI-2 20MB/s (16MB/s)

- ## SCSI figures (HP-UX)

  - SE synchronous SCSI-2 5 MB/s (4.5 MB/s)
  - FW diff. SCSI-2 20 MB/s (NIO: 9 MB/s, HSC: 12 MB/s)
  - typical K-Class HSC performance: 43.2 GB/h

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