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Sandra
Asked: 2013-09-28 05:55:04 +0800 CST

What are 19mm high 3.5" hard disks called?

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According to Wikipedia a normal 3.5" harddisk is 25.4mm high, but then there exist also a 19mm version, which I need for a HP ProLiant MicroServer.

Looking at our resellers webshop I see the following options

  • 1/3H
  • SlimLine
  • 1/2H
  • 1/4H
  • LFF

When I search for the model number VB0250EAVER on the disk that just broke, some webshops call it for LFF, which should be Large Form Factor, which I find weird, as it is smaller than a normal 3.5".

Question

Does anyone know for sure what the 19mm model is called?

hard-drive

2 Answers

  1. Best Answer

    The term for this type of disk is a slimline 20mm disk. The OEM for the HP drive you've mentioned is the Seagate ST3250318AS

    The Microserver uses it's own special drive trays/carriers. You can use any 3.5" disk in the enclosure, though.

    Here's a list of community-submitted compatible drives.

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  2. For a long time I have used a couple of Maxtor Diamondmax plus 8 low-height 40G drives. They were marketed as 2/3 height, lighter and have improved airflow for cooling. True to form this drive model is slightly slimmer than 19mm as it measures just under 17mm.

    If you can find spare replacement and the 2.5" option is available, then choose the latter as the additional benefits of extra cooling space and lower power consumption will help improve overall reliability.

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