# Remote i/o for CB3 **URL:** \ **Category:** Technical Questions\ **Created:** [July 3, 2024, 8:04am UTC](https://forum.universal-robots.com/t/remote-i-o-for-cb3/35054 "2024-07-03T08:04:57Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![chris.pocock](https://avatars.discourse-cdn.com/v4/letter/c/bcef8e/32.png) [@chris.pocock](https://forum.universal-robots.com/u/chris.pocock)\ **Post date:** [July 3, 2024, 8:04am UTC](https://forum.universal-robots.com/t/remote-i-o-for-cb3/35054/1 "2024-07-03T08:04:57Z")
Morning, is there a remote i/o available for a UR3 CB3? We need to add more inputs / outputs to a project and have been told by our supplier none are available. Thanks. ---
**Author:** ![magnus.olsson](https://avatars.discourse-cdn.com/v4/letter/m/e79b87/32.png) [@magnus.olsson](https://forum.universal-robots.com/u/magnus.olsson)\ **Post date:** [July 4, 2024, 6:59am UTC](https://forum.universal-robots.com/t/remote-i-o-for-cb3/35054/2 "2024-07-04T06:59:43Z")
Hello The easiest I/O extension is a modbus I/O node, it’s easy to setup and easy to control from the UI. ProfiNET is also possible but can be a bit more complicated as you might need to program the nodes. We use both, modbus if we only need a few extra I/O with no logic itself. ProfiNET if we have a PLC that control something beside the robot. ---
**Author:** ![efn](https://avatars.discourse-cdn.com/v4/letter/e/35a633/32.png) [@efn](https://forum.universal-robots.com/u/efn)\ **Post date:** [July 4, 2024, 8:26am UTC](https://forum.universal-robots.com/t/remote-i-o-for-cb3/35054/3 "2024-07-04T08:26:35Z")
Check the Universal Robots Plus marketplace. There’re multiple MODBUS solutions listed there. 🙂 MOXA E12XX is a MODBUS solution with expandable IO. There is a video on how to set it up with Universal Robots robots, as well: [https://www.youtube.com/watch?v=iWy7FxcfNd4&t=1s](https://www.youtube.com/watch?v=iWy7FxcfNd4&t=1s)