Tandberg TDC 3350 MK-II 5.25" 3300 Series Internal Tape Drive MAI Basic Four

Tandberg TDC 3350 MK-II 5.25" 3300 Series Internal Tape Drive MAI Basic Four

The Tandberg TDC 3350 MK-II is a 5.25" half-height internal tape drive from Tandberg Data's TDC 3300 Series. Manufactured in Norway, the TDC 3300 Series was a line of QIC-compatible streaming tape drives designed for internal installation in desktop towers and system cabinets. This unit carries part number TDC 3315 on its interface label and is confirmed compatible with the MAI Basic Four Tape Drive Tower.

Specifications & What's Included

• Manufacturer: Tandberg Data A/S
• Model: TDC 3350 MK-II
• Secondary Model / Interface Label: TDC 3315
• Series: TDC 3300 Series
• Form Factor: 5.25" Internal
• Buffer Size: 4K
• Formatter Board: 961631 Rev. 13
• Firmware CPF: 966621 Rev. 0
• Firmware FPF: 966629 Rev. 0
• Drive Signal Cable: 961613 Rev. 0
• Country of Manufacture: Norway
• Certifications: UL Listed (per label)
• Mounting rails attached
• Rear: data ribbon interface connector and 4-pin power connector

Applications

The Tandberg TDC 3300 Series tape drives were widely deployed in the 1980s and 1990s as internal backup solutions for business and industrial computer systems, including midrange and departmental platforms such as the MAI Basic Four business computing systems. These drives provided reliable streaming tape backup in environments where data archiving and sequential backup to tape cartridge was the standard method. Today, TDC 3300 Series units are sought by legacy system maintainers, collectors of vintage computing hardware, and organizations still operating MAI Basic Four or compatible equipment that requires period-correct internal tape backup drives.