# Max. Output Current for I/O

**URL:** <https://forums.digi.com/t/max-output-current-for-i-o/687>\
**Category:** XBee - Zigbee\
**Created:** [April 25, 2011, 9:42pm UTC](https://forums.digi.com/t/max-output-current-for-i-o/687 "2011-04-25T21:42:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![awaiK](https://avatars.discourse-cdn.com/v4/letter/a/34f0e0/32.png) [@awaiK](https://forums.digi.com/u/awaiK)\
**Post date:** [April 25, 2011, 9:42pm UTC](https://forums.digi.com/t/max-output-current-for-i-o/687/1 "2011-04-25T21:42:06Z")

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Hello,

can anyone tell me what’s the maximum output current, I can get from a XBee (Series 2, ZB) output port?

I can’t find it in the documentation.

There exists a [thread regarding this question](http://www.digi.com/support/forum/viewthread_thread,239), saying 4 to 5 mA. But this is for series 1,802.15.4 modules.

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<div class="post-metadata">

**Author:** ![lynnl](https://avatars.discourse-cdn.com/v4/letter/l/22d042/32.png) [@lynnl](https://forums.digi.com/u/lynnl)\
**Post date:** [April 26, 2011, 11:56am UTC](https://forums.digi.com/t/max-output-current-for-i-o/687/2 "2011-04-26T11:56:03Z")

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Per page 17 of the ZB manual (rev G), the max sink or source current on most pins is 4mA. A few (RSSI/PWN, DIO10, DIO4) can sink/source 8mA. However some total current for all IO pins should not exceed 40mA.