Dell PowerVault 110T SDLT320 (Tape Drive) - Manual (Page 38)

Backward-Read Compatibility (BRC) Transfer Rates
A backward read compatibility feature is available for the tape drive. This option allows the drive to read, but not write to, DLTtape IV tapes. Transfer rates quoted are nominal
reading uncompressed data.
Table 13. Backward-Read Compatibility (BRC) Transfer Rates
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Maximum Dew Point 2°C (36°F)
Media Format (Uncompressed) BRC Transfer Rate (Nominal, Native)
(160 GB) SDLT 320 16.0 MB/second
(110 GB) SDLT 220 11.0 MB/second
(40 GB) DLT 8000 4.0 MB/second
(35 GB) DLT 7000 3.5 MB/second
(20 GB) DLT 4000 1.5 MB/second
(40 GB) Benchmark drive type DLT-1 3.0 MB/second
Notes: Transfer rates quoted are nominal, measured reading uncompressed data.
Non-SDLT drives will eject a cartridge written in SDLT 320 format.