Name: Photo: Size:   Tape types:                                     Notes:

4mm DDS-3 2.9" W x 2.1" L x 0.4" T   As of this writing there are five different drives: DDS-1, DDS-2, DDS-3, DDS-4 (DAT 40), and DDS-5 (DAT72). Each drive uses different media. The original drive was called "DDS", and is alternately referred to as "DDS" and "DDS-1". DDS-1 drives came in two types, one could use extra length 90 M tapes. The table below lists the drives, tapes, and capacity.   Drive / Format Tape length Uncompressed  capacity Compressed capacity * DDS  (DDS-1) 60 M 1.3 GB 2.6 GB DDS (DDS-1) 90 M 2 GB 4 GB DDS-2 120 M 4 GB 8 GB DDS-3 125 M 12 GB 24 GB DDS-4 (DAT 40) 150 M 20 GB 40 GB DDS-5 (DAT 72) 170 M 36 GB 72 GB * Capacity at 2:1 compression. Acutal compression depends on data recorded. All tapes are the same physical cartridge size but use different media & drives. There are also 7.5, 15, and 30 meter DDS-1 tapes available.

Need to convert this tape? See our IBM Data Conversion Services

More photographs of tapes