IBM LTO4 Ultrium 800, 1600GB WORM

Characteristics: Linear serpentine recording half-inch cartridge
Media Type: Metal Particle (MP)
Cartridge physical capacity: 800 GB (1.6 TB with 2:1 compression)
Rewritable cartridge: LTO Ultrium 800 GB rewritable Data Cartridge (800/1.6 TB*)
WORM cartridge: LTO Ultrium 800 GB WORM Cartridge (800/1.6 TB*)
Physical and magnetic characteristics:
Substrate: Polyethylene Naphthalate (PEN)
Substrate thickness: 0.00020 in (5.0 microns)
Total tape thickness: 0.00026 in (6.6 microns)
Tape length: 2690 ft (820 m)
Magnetic coercivity: 215,700 A/m or 2710 Oe

Physical dimensions:
Cartridge size: 4.02 in L x 4.15 in W x 0.85 D (102.0 mm x 105.4 mm x 21.5 mm)
Data cartridge weight: 0.441 lbs (200 grams)
Cleaning cartridge weight: 0.254 lbs (115 grams)