# Jetson Orin Nano to Switch: Transformerless Ethernet Connection?

**URL:** <https://forums.developer.nvidia.com/t/jetson-orin-nano-to-switch-transformerless-ethernet-connection/380531>\
**Category:** Jetson Orin Nano\
**Tags:** ethernet-switches, board-design\
**Created:** [August 18, 2026, 6:18pm UTC](https://forums.developer.nvidia.com/t/jetson-orin-nano-to-switch-transformerless-ethernet-connection/380531 "2026-08-18T18:18:49Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![pabdu](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@pabdu](https://forums.developer.nvidia.com/u/pabdu)\
**Post date:** [August 18, 2026, 6:18pm UTC](https://forums.developer.nvidia.com/t/jetson-orin-nano-to-switch-transformerless-ethernet-connection/380531/1 "2026-08-18T18:18:49Z")

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I’m connecting the Jetson Orin Nano 8GB (900-13767-0030-000) native GbE MDI interface to a Microchip KSZ9477STXI Ethernet switch.

Microchip supports a transformerless PHY-to-PHY connection using series AC-coupling capacitors. Does the Jetson Orin Nano GbE PHY support this as well?

Does the recommendation change depending on how the two devices are connected, such as:

-Same PCB with short traces

-Separate PCBs connected through board-to-board cables/connectors

-Separate PCBs connected with a very short Ethernet cable

Thanks!

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<div class="post-metadata">

**Author:** ![pabdu](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@pabdu](https://forums.developer.nvidia.com/u/pabdu)\
**Post date:** [August 31, 2026, 5:25pm UTC](https://forums.developer.nvidia.com/t/jetson-orin-nano-to-switch-transformerless-ethernet-connection/380531/5 "2026-08-31T17:25:26Z")

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Bumping to the top

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**Author:** ![WayneWWW](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/waynewww/32/14043_2.png) [@WayneWWW](https://forums.developer.nvidia.com/u/WayneWWW)\
**Post date:** [September 2, 2026, 7:26am UTC](https://forums.developer.nvidia.com/t/jetson-orin-nano-to-switch-transformerless-ethernet-connection/380531/11 "2026-09-02T07:26:14Z")

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_Please refer to the [Jetson Orin NX Series and Orin Nano Series Design Guide](https://developer.nvidia.com/downloads/jetson-orin-nx-series-nano-series-design-guide) for Ethernet connection._

_While the Jetson Orin Nano module currently has an internal PHY, this component is subject to change in the future. Therefore, we recommend following the standard carrier board design, using a transformer and an RJ45 cable for the connection to the switch._

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**Author:** ![system](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/system/32/68080_2.png) [@system](https://forums.developer.nvidia.com/u/system)\
**Post date:** [September 30, 2026, 11:43pm UTC](https://forums.developer.nvidia.com/t/jetson-orin-nano-to-switch-transformerless-ethernet-connection/380531/14 "2026-09-30T23:43:24Z")

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