# My book Studio

**URL:** <https://forums.sandisk.com/t/my-book-studio/367498>\
**Category:** External SSD for macOS\
**Created:** [May 21, 2015, 10:49am UTC](https://forums.sandisk.com/t/my-book-studio/367498 "2015-05-21T10:49:26Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Palle58](https://avatars.discourse-cdn.com/v4/letter/p/b9e5f3/32.png) [@Palle58](https://forums.sandisk.com/u/Palle58)\
**Post date:** [May 21, 2015, 10:49am UTC](https://forums.sandisk.com/t/my-book-studio/367498/1 "2015-05-21T10:49:26Z")

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Hi!

I just purchased a My Book Studio and it works just fine. I checked the HDD in it and it is wd30efrx-68euzn0 and that is a red drive. Should it not by a green?

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**Author:** ![lluna](https://sea2.discourse-cdn.com/sandisk/user_avatar/forums.sandisk.com/lluna/32/29733_2.png) [@lluna](https://forums.sandisk.com/u/lluna)\
**Post date:** [May 21, 2015, 8:41pm UTC](https://forums.sandisk.com/t/my-book-studio/367498/2 "2015-05-21T20:41:23Z")

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Hi there, welcome to the WD Community.

WD may use different drives on their enclosure, you can check the following link for more information:&nbsp; [http://wdc.custhelp.com/app/answers/detail/a\_id/1704/](http://wdc.custhelp.com/app/answers/detail/a_id/1704/)