# High Speed PCB Materials: Rogers 4350B and Panasonic Megtron 6

**URL:** https://sierraconnect.protoexpress.com/t/high-speed-pcb-materials-rogers-4350b-and-panasonic-megtron-6/245
**Category:** Choosing materials
**Created:** [October 17, 2023, 7:04am UTC](https://sierraconnect.protoexpress.com/t/high-speed-pcb-materials-rogers-4350b-and-panasonic-megtron-6/245 "2023-10-17T07:04:55Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![lucy.sierracircuits](https://sea2.discourse-cdn.com/sierraconnect/user_avatar/sierraconnect.protoexpress.com/lucy.sierracircuits/32/8_2.png) [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)
#### Post date: [October 17, 2023, 7:04am UTC](https://sierraconnect.protoexpress.com/t/high-speed-pcb-materials-rogers-4350b-and-panasonic-megtron-6/245/1 "2023-10-17T07:04:55Z")

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Originally published at: [https://www.protoexpress.com/blog/tale-of-two-materials/](https://www.protoexpress.com/blog/tale-of-two-materials/)  
   
There has been extensive research on the development of low loss materials in the past few decades with embedded optical channels having shown promise in transporting high-speed digital signals within PCBs. Since optical channels are still under development, currently we make use of materials such as Rogers 4350B and Panasonic Megtron 6 which are low-loss materials.