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USB to TTL Serial Adapter CH340 chip Converter Module Debug Cable TTL to USB Serial Cable

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$11.88

$ 5 .99 $5.99

In Stock

About this item

  • Built-in a new CH340G original chip, which handles all the USB signalling and protocols. TTL levels of 5V and 3.3V adjustable design, and draws power directly from your PC/laptop via the USB connection, no need for an external power adapter.
  • Provides access to UART Transmit (Tx), Receive (Rx), RTS, CTS, VCC and GND connections; POW(power), RXD/TXD transceiver communication LED indicator design, which can show serial adapter status and data activity at a glance.
  • Windows 8 and above OS, Linux and Mac OS will install FTDI driver automatically, but NOT compatible with Chrome OS.
  • What you get: 1 x USB to TTL Module + 1 x Jumper, which are packed by antistatic bag.



Antonio J Santiago
Reviewed in the United States on August 1, 2024
Out of the two that I ordered only one is working. The other one has broken traces on the bottom, globs of solder covering a 1/4 of the outer perimeter on the top side, and a piece of the top layer looks like got ripped of on a corner.
E. Blackburn
Reviewed in the United States on August 4, 2021
I’ve plugged the device into 4 different computers (one running Mac OS X, one running Windows, and 2 running Linux (Debian and Ubuntu)). Upon connecting it, each system reboots, and continues doing so until it’s removed. This is with or without anything connected to the pins on the device. It’s not really worth returning it at its price, so I’ll be tossing it into the trash and probably just use one of my raspberry pi’s instead. Maybe I just got a bad one, if you purchase one I hope your experience is better than mine!
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