This one has a DVD-RW installed for use The ICY BOX IB-AC642 is not a hard drive itself but an adapter designed to replace the DVD drive in a laptop with a 2.5" SSD or HDD for increased storage or speed. It includes a slim external enclosure that allows the removed DVD-RW drive to be used externally via USB 2.0. So, it is primarily a DVD-RW when used with the external enclosure, but it also facilitates the installation of a hard drive or SSD internally in the laptop's DVD bay.
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