# Coming from Longmill to Pro model

**URL:** <https://forum.onefinitycnc.com/t/coming-from-longmill-to-pro-model/25953>\
**Category:** Original/PRO Series (Buildbotics) (Gen 1)\
**Created:** [March 15, 2024, 7:00pm UTC](https://forum.onefinitycnc.com/t/coming-from-longmill-to-pro-model/25953 "2024-03-15T19:00:41Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [April 9, 2024, 3:48pm UTC](https://forum.onefinitycnc.com/t/coming-from-longmill-to-pro-model/25953/5 "2024-04-09T15:48:08Z")

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Hey Randall,

the Onefinity CNC Controllers are USB **hosts** , not USB **clients**. You cannot connect a PC to their USB ports. But you can connect a USB thumb drive that has a g-code program on it in order to upload it to the Onefinity Controllers.

You can however upload g-code files from remote hosts via network (WiFi or ethernet).

See here the [other post](https://forum.onefinitycnc.com/t/gsender-and-onefinity/26355/4).

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