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Toshiba unveils two 1.8" hard drives with perpendicular recording

Toshiba introduced the first 1.8" hard drives with perpendicular recording allowing for 40 GB plates. The 40 GB MK4007GAL and 80 GB MK8007GAH will be volume-produced in Q1 and Q2 of financial year 2005 (starting on April 1, 2005), respectively.


Judging by the official information, the data density makes 206 Mbit/mm² or 133 Gbit/inch2.

  MK8007GAH MK4007GAL
Formatted capacity, GB 80 40
Plates 2 1
Heads 4 2
Average seek, ms 15
Performance UDMA/100
RPM 4200
Interface ATA-6
Size, mm 54x78.5x8 54x78.5x5
Weight, g 62 51
Withstanding shock 4900 m/s2 (500g/2 ms) operating,
14700 m/s2(1500g/1 ms) non-operating



perpendicular recording


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