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I am researching trying to install an extra SSD on a Latitude E6440, and there seems to be another slot labeled WWAN beneath the slot that's used everywhere I see.

Is that another identical slot? Can I use them both together, and do they both work with an SSD?

This is the slot I see used for this procedure:

enter image description here

This picture shows the other slot underneath:

enter image description here

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  • Page 16: dl.dell.com/topicspdf/…
    – Joep van Steen
    Commented May 30, 2023 at 19:29
  • Page 16 shows the WLAN card, which is different. Page 17 is unhelpful.
    – WOX GAMER
    Commented May 30, 2023 at 19:34
  • dell.com/community/Laptops-General-Read-Only/… - just doing some googling for you.
    – Joep van Steen
    Commented May 30, 2023 at 19:40
  • Trust me I had been googling before asking, also I scoured the Dell website but never stumbled upon that forum post. From what the guy said, the lower slot only works with a network card and the upper one is normal mSATA.
    – WOX GAMER
    Commented May 31, 2023 at 9:15

2 Answers 2

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Are you sure there are 2 WWAN slots? 1 is for a cellular Internet Card. Fairly common on some Lenovo machines.

That will not be the same (at all) as an SSD slot.

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  • The upper one is called WWAN in the Dell guide. The lower one I haven't seen mentioned anywhere.
    – WOX GAMER
    Commented May 30, 2023 at 19:36
  • That slot is for a cellular Internet card as I mentioned.
    – anon
    Commented May 31, 2023 at 0:43
  • Not helpful that they are never distinguished in any documentation.
    – WOX GAMER
    Commented May 31, 2023 at 9:20
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Both this slots are (universal) PCIe M.2. Theoretically, both of them are compatible [with SSD of such kind], but to make sure it is better to rearrange the working SSD from one to the other and check if it will work (detected by the system)

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