https://devzone.nordicsemi.com/f/nordic-q-a/94955/resistors-for-d-and-d-Could someone please tell me if external series resistors are necessary for D+ and D- for USB 2.0? I&#39;ve seen some comments here that they aren&#39;t necessary and may cause problems, but every NRF52840 board design that I&#39;ve found online has external resistorsen-USTelligent Community 13Mon, 19 Dec 2022 16:04:17 GMThttps://devzone.nordicsemi.com/thread/401326?ContentTypeID=1Mon, 19 Dec 2022 16:04:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d6288c13-dc59-4405-a667-f99e8e507a0cAndrew Mowry<p>Great, thank you for your help!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/401181?ContentTypeID=1Mon, 19 Dec 2022 08:08:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2450395a-2019-45f2-824d-50a3a4cb78c9Priyanka<p>Hi Andrew,</p> <p>The external series resistors are not required for D+ and D-. They are already built into the USB PHY.&nbsp;</p> <p>Best Regards,</p> <p>Priyanka</p><div style="clear:both;"></div>