Apple Tape Backup 40SC

The Apple Tape Backup 40SC is an external, SCSI-interfaced, 1⁄4-inch (6.35 mm) QIC, mini-cartridge tape drive.^[2] It was first introduced by Apple Inc. in 1987 and discontinued in 1994.^[3] The drive came bundled with Retrospect backup software.^[4][2][5] The drive is also compatible with the tape software included with A/UX.^[6][7]

Apple Tape Backup 40SC

Introduced	1987 (1987)
Discontinued	1994 (1994)
Cost	US$1,499 (equivalent to $4,149 in 2024)[1]
Type	Tape drive
Connection	SCSI
Ports	2 SCSI ports
Power consumption	15 – 60 watts
Weight	7.3 lb (3.3 kg)
Dimensions	246 mm (W) × 266 mm (D) × 78 mm (H)

Technical specifications

• Recording media: Industry-standard, DC 2000 1⁄4-inch (6.35 mm) QIC mini-cartridge.^[2]
• Formatted capacity: 38.5 megabytes.^[3]
• Block size: 8,192 bytes.^[3]
• Transfer rate: 1.25 megabyte per second.^[3]
• Interface: SCSI. Connected directly to Macintosh Plus, Macintosh SE or Macintosh II via a 50-pin SCSI port or to a compatible hard disk drive.^[2][3]
• Volume backup time: Approximately 17–18 minutes per 20 megabytes.^[3]

See also

• List of Apple drives