CDM40 Quantum 20GB(Native) / 40GB DDS-4

CDM40 Specifications

DAT 40 Tape Cartridge

Manufacturer: (Often OEM’d by brands such as Certance/Quantum)
Manufacturer Model: CDM40
Product Line: DAT Media
Product Series: DAT 40
Product Type: Magnetic Tape Data Cartridge
Product Name: DAT 40 Tape Cartridge

KEY FEATURES:

Media Type: DAT 40 data tape cartridge

Native Storage Capacity: ~20 GB

Compressed Storage Capacity: ~40 GB (assumes 2:1 compression)

Tape Technology: DDS (Digital Data Storage) / DAT format

Rewritable: Yes (standard data tape media)

PERFORMANCE:

Designed for backup and archival on DAT 40 compatible tape drives

Typical transfer speeds suited to DAT 40 drive performance (legacy format)

ENVIRONMENTAL & RELIABILITY:

Suitable for moderate‑term archival storage under proper conditions

Designed for reliable use in legacy backup systems

PHYSICAL:

Form Factor: Compact DAT tape cartridge

Tape Length: ~82 m (~269 ft) (typical for DAT 40 media)

Cartridge Dimensions: Standard DAT format cartridge size

Weight: Approximate typical tape cartridge weight

NOTES:

Drive Compatibility: Intended for use with DAT 40 (DDS‑2) tape drives; some later DDS drives may offer backward compatibility

Legacy Format: DAT 40 is an older tape format; modern formats such as LTO offer significantly higher capacities and speeds