The i o pins of this cable are configured to operate at 3 3v specifically with a raspberry pi with each serial pin broken apart.
Usb to ttl converter cable.
The power pin provides the 5v 500ma direct from the usb port and the rx tx pins are 3 3v level for interfacing with the most common 3 3v logic level chipsets.
Usb to ttl com serial adapter converter cable pl2303 0 1 inch 4 pin tx rx vcc gnd with driver and 20 dupont cable for arduino esp8266 esp32 raspberry pi etc 8 99 8 99 get it as soon as sun apr 26 free shipping on orders over 25 shipped by amazon.
Dtech usb to ttl serial 3 3v adapter cable tx rx signal 4 pin 0 1 inch pitch female socket pl2303 prolific chip windows 10 8 7 xp vista 6ft black 4 4 out of 5 stars 30 12 49 12.
Usb to ttl serial 3 3v uart converter cable with ftdi chip terminated by 6 way header works with galileo gen2 boards beaglebone black minnowboard max and more 4 4 out of 5 stars 49 15 59 15.
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Dtech ftdi usb to ttl serial 3 3v adapter cable 6 pin 0 1 inch pitch female socket header uart ic ft232rl chip windows 10 8 7 linux 6ft black 5 0 out of 5 stars 7 13 49 13.
This is a usb to ttl serial cable which allows for a simple way to connect ttl interface devices to usb.