KNTK 2-Way RJ11 Data Transfer Switch Box Rotary for Phone Jack RJ-11 Fax Modem For Sale
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KNTK 2-Way RJ11 Data Transfer Switch Box Rotary for Phone Jack RJ-11 Fax Modem
Price: US $10.00
What you see is what you get.
The knob is not the original knob but allows you to switch between a or b.
