# ProtoKit 5 **URL:** https://community.zymbit.com/t/protokit-5/508 **Category:** PROTOKIT **Created:** [April 17, 2019, 10:00pm UTC](https://community.zymbit.com/t/protokit-5/508 "2019-04-17T22:00:26Z") **Posts on this page:** 1 **Showing post:** 13
### Author: ![Phil\_S\_Zymbit\_1](https://avatars.discourse-cdn.com/v4/letter/p/45deac/32.png) [@Phil\_S\_Zymbit\_1](https://community.zymbit.com/u/Phil_S_Zymbit_1) #### Post date: [November 17, 2019, 12:14am UTC](https://community.zymbit.com/t/protokit-5/508/13 "2019-11-17T00:14:51Z")
@mmuehle You might find this new topic helpful - both these customers used USB type modems… > [@Cellular Modem Support](https://community.zymbit.com/t/cellular-modem-support/688): > > A good number of our customers are using cellular modems in their applications, alongside a zymbit security module. We thought it would be helpful to create a space to share customer experiences of different modem types, service vendors and Linux integrations. Zymbit is not endorsing any of these services or modems, but we are happy to enable developers to share their good and bad experiences. Here are two initial pieces of customer feedback to get the conversation started: Verizon Service … --- _[View the full topic](https://community.zymbit.com/t/protokit-5/508)._