The Sun StorageTek 003-3865-01 tape media is an enterprise tape. The 003-3865-01 is similar to both the 003-3822-01 and the 003-3862-01 in all features except that the 003-3865-01 comes both pre-labeled and initialized. Therefore the 003-3865-01 has a native capacity of 40 GB when used with T9840C tape drives and a 20 GB native capacity when used with T9840A and T9840B tape drives. The 003-3865-01 has a AMP (Advanced Metal Particle) base and uses PEN (Polyethylene Naphthalene) substrates. Durability ranges from 10,000 load/unload cycles to up to 30 years archival life.