Network transceivers from US brands and US-based sellers
Amazon ranks by what sells fastest, so a network transceiver from an established brand gets buried under cheap imports no matter how far you scroll. This page lists the US brands and US-based sellers for network transceivers, so you can start from the ones worth trusting.
We read each seller's registered country from Amazon's own published seller info. We don't claim anything here is manufactured in the US, only that you're buying from a US brand or a US-based seller.
Confirmed US brands and sellers
6 listings where Amazon's own seller info places the seller in the US. Each badge says which.

Black Box LPS500 Transceiver/Media Converter

Extreme Networks 10301 10GbE SFP+ Short Range Multi-Mode Fiber Transceiver - Compatible with ExtremeSwitching and SLX Series

FINISAR - IMSOURCING Finisar Network FTLX8574D3BCL SFP+ Transceiver 10GBase-SR/SW 400m Brown Box Electronic Consumer Electronics

Fluke Networks LinkIQ Kit with Fiber VFL & Live Fiber Detector

Fortinet Brand Transceiver, 10GE SFP+ transceiver Module, Short Range 10GE SFP+ transceiver Module, Short Range for Systems with SFP+ and SFP/SFP+ Slots

Netgear SFP+ Module
US brands we went looking for
More names an AI suggested for this category that we haven't confirmed US on yet. Each badge says how far we've checked it.

StarTech Gigabit Fiber Media Converter, Open SFP, MM/SM, TAA (MCM1110SFP)

TRENDnet Industrial 100/1000Base-T to SFP Media Converter TI-F11SFP
Suggested, not verified. These names came from an AI suggestion, not from our data. We only call a brand US after checking the seller's registered address on its Amazon seller page. Amazon is the seller on these, so its seller page can't tell us who the brand is.