Lenovo ThinkStation P330 User Manual page 13

2 SD card slot (available on some models)
An SD card is installed in some models.
3 M.2 solid-state drive slot
An M.2 solid-state drive is installed in some models.
4
Storage drive bay
You can install hard disk drives or solid-state drives in the storage drive bay.
5 PCIe card slots (3)
You can install compatible PCIe cards and PCIe solid-state drives in the PCIe card slots.
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Chapter 1 Meet your computer
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