# ELECTRON: Compatibility among different UBlox versions **URL:** \ **Category:** General\ **Created:** [February 23, 2016, 7:29am UTC](https://community.particle.io/t/electron-compatibility-among-different-ublox-versions/20360 "2016-02-23T07:29:24Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![pdelmastro](https://avatars.discourse-cdn.com/v4/letter/p/f475e1/32.png) [@pdelmastro](https://community.particle.io/u/pdelmastro)\ **Post date:** [February 23, 2016, 7:29am UTC](https://community.particle.io/t/electron-compatibility-among-different-ublox-versions/20360/1 "2016-02-23T07:29:24Z")
Hello, for some changes in our business scenarios we have now several Electron Beta with SARA-U270 but we would need to use them in US. We also have the possibility to get few U260 or G350 modules from our local UBlox representative. What would happen if we un-Mount U270 and Mount any of the other modules? I see on UBlox web that there is almost full pin to pin compatibility for the HW, but will I get any issue with the FW? Thanks you very much and best regards Paolo Delmastro ---
**Author:** ![mdma](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/mdma/32/1924_2.png) [@mdma](https://community.particle.io/u/mdma)\ **Post date:** [March 2, 2016, 3:10pm UTC](https://community.particle.io/t/electron-compatibility-among-different-ublox-versions/20360/2 "2016-03-02T15:10:59Z")
The system firmware is the same for all types of electron, so you should be able to swap the modules if they are pin compatible and continue using the same firmware. ---
**Author:** ![riforifo](https://avatars.discourse-cdn.com/v4/letter/r/a698b9/32.png) [@riforifo](https://community.particle.io/u/riforifo)\ **Post date:** [March 30, 2016, 8:44pm UTC](https://community.particle.io/t/electron-compatibility-among-different-ublox-versions/20360/3 "2016-03-30T20:44:26Z")
Hello, Just made a quick comparison between the U260 and G340 series. There are minor differences on below pins 17, 19, 23, 24, 25, 26, 27, 28, 29, 31, 34, 35, 36, 37, 44, 45, 46, 47, 48, 49 all of the above pins are NC hence shouldn’t be a problem.