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Comparing The Candidates

1.8" Hard Drives: Small is Beautiful

Toshiba's new 1.8" drives are the second generation to benefit from perpendicular recording. In contrast, Hitachi still uses conventional, longitudinal recording technology, which explains the capacity differences: Hitachi can provide 30 GB per 1.8" platter while Toshiba's drives store 40 GB each.

The platter configuration determines the height of both 1.8" drive products: if two platters are used, both models have a height of 8 mm (0.315"), while the single-platter versions get by with a height of only 5 mm (0.197"). Toshiba offers its drives with a Micro-ATA interface or using the CE-compliant Zero Insertion Force (ZIF) connector. Hitachi decided to implement either the full Mini-ATA connector, which is used by all 2.5" UltraATA drives, or the ZIF interface.

  Hitachi C4K60 Toshiba MK8004/4007
Capacity Points 20, 30, 40 and 60 GB 20, 30, 40, 60 and 80 GB
Spindle Speed 4,200 RPM 4,200 RPM
Interface UltraATA/100
(ZIF, Mini ATA)
(ZIF, Micro ATA)
Cache 2 MB 2 MB
Seek Time 15 ms 15 ms
Weight Single platter models: 46 g (1.62 oz)
Dual platter models: 57 g (2.01 oz)
Single platter models: 51 g (1.8 oz)
Dual platter models: 62 g (2.19 oz)
Operating Temperature 5-60°C (41-140°F) 5-60°C (41-140°F)
Power Draw
1.4/1.0/0.4/0.08 W 1.8/1.1/0.4/0.07 W

The high capacity drives are thicker due to their two-platter configuration.

We received Hitachi's CE version of the C4K60, which uses a ZIF interface to connect the drive to its host. However, the protocol used is UltraATA/100.
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  • 0 Hide
    Anonymous , May 15, 2008 9:34 PM
    Where can i find an enclosure that can read from this HD?
  • 0 Hide
    Anonymous , September 15, 2008 11:25 PM
    On ebay, for around $10
  • 0 Hide
    Anonymous , June 6, 2011 11:31 PM
    great article, this HDD type is new to me.. :) 
  • 0 Hide
    Anonymous , October 11, 2011 5:22 PM
    Where did you hear "big is beautiful"? This author probably has a fat ass girlfriend!