Suggested and know working 4G modem in mini-pcie with libre driver?

[Benoît]

Many thanks Dan!
Just a last question: I have a passive cooling server I am using as my wireless access point + 3g modem.
The device has two antennas and right now I am connected each antenna to the "main" connector of each 3g modem and wireless card.
Everything is working fine
What about with a 4g modem? I guess it needs two antennas?
What if I am putting in parallel wireless and 4g cards on the same two antennas?
I have some doubt on the RF 
Many thanks 
-- 
Sent from my mobile device. Please excuse my brevity.

On December 9, 2015 10:39:23 PM GMT+01:00, Dan Williams <dcbw at redhat.com> wrote:
>On Wed, 2015-12-09 at 22:19 +0100, Benoît wrote:
>> Hello,
>> 
>> Any known 4G card working with libre drivers in Linux? 
>> Would love to heard about some good working models 
>
>A good start is:
>
>http://www.freedesktop.org/wiki/Software/ModemManager/SupportedDevices/
>
>You're pretty safe with Sierra MC7700, MC7710, MC7750 (PCI-E minicards)
>and the EM series (M.2/NGFF minicards).  Other known working ones are
>Novatel E3xx devices and the various Ericsson ones (5521, 5321, 3607,
>though they are EOL and don't support LTE).  First make sure that the
>device supports the bands your provider uses.
>
>Dan
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