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Two input 2.54mm headers: two sockets are connected in parallel, the stereo sound source is input to one of the sockets, and the other socket can be used as an output (connected to 2.0 power amplifier or 2.0 tones), which is convenient to form 2.1 channel wiring.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.