Why does the product photo have a jumper across txd and rxd?

The jumper between TX and RX is mainly used for testing. Short TX, RX means you will receive any data you send. When you program or debug, you can quickly confirm if the TTL adapter is damaged. It saves you time and quickly locates faults.

What is the maximum baud rate of this device?

Build-in FTDI FT232RL Chip, max speed is to 3Mb/s . After testing, we found that data can be transmitted stably below 115200 baud rate.

Does this work with the arduino ide to upload sketches to the arduino pro mini?

yes ,it work with arduino ide to upload sketches to pro mini.

I want to confirm, 5v from the usb side is output to vcc as 5v or converted to 3.3v /1.8v by jumper and sets ttl interface level correct?

Hi, I just checked this on mine with a DMM to verify. Your assumption is correct: the jumper will alter the VCC to 5/3.3/1.8V.

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DSD TECH SH-U09C2 USB to TTL Adapter Built-in FTDI FT232RL IC for Debugging and Programming

Product ID: 154119348

Details

Colour
Transparent
Compatible devices
Hard Drive
Connector type
usb
Item dimensions L x W x H
38 x 10 x 4

⚡FTDI FT232RL IC for ultra-reliable data transfer

🔄Switchable 5V/3.3V/1.8V logic levels for versatile compatibility

🛡️Transparent protective case guards against static & shorts

₱2199

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Description

🔌 Elevate your debugging game with the ultimate USB-to-TTL adapter!

LOGIC LEVEL FLEXIBILITY - Easily toggle between 5V, 3.3V, and 1.8V TTL signals to match your device’s needs without extra adapters.
ROBUST STATIC PROTECTION - Transparent casing shields your adapter from static interference and accidental shorts, ensuring longevity.
TRUSTED SUPPORT WARRANTY - Backed by a 12-month warranty and responsive 24-hour customer service to keep your projects on track.
CROSS PLATFORM COMPATIBILITY - Works flawlessly across Windows, Linux, and Mac OS—no driver headaches, just smooth connectivity.
PLUG PLAY DEBUGGING POWERHOUSE - Seamlessly program and debug ESP8266, routers, GPS, and more with native FTDI chip reliability.

The DSD TECH SH-U09C2 USB to TTL Adapter features a built-in original FTDI FT232RL IC, supporting switchable 5V, 3.3V, and 1.8V logic levels. Its transparent protective case prevents static interference and short circuits. Compatible with Windows, Linux, and Mac OS, it’s ideal for programming ESP8266 modules, unbricking routers, flashing firmware, and interfacing with UART devices. Backed by a 12-month warranty and responsive support, it’s a reliable tool for professional debugging and programming.

Specifications

ASIN	B07TXVRQ7V
Best Sellers Rank	11,562 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 12 in Serial Adapters
Brand Name	DSD TECH
Colour	Transparent
Compatible Devices	Hard Drive, Laptop
Connector Type	usb
Country of Origin	China
Current Rating	1 Amps
Customer Reviews	4.8 4.8 out of 5 stars (901)
Input Voltage	5 Volts
Item Dimensions	38 x 10 x 4 millimetres
Item Weight	0.2 Ounces
Manufacturer	DSD TECH
Manufacturer Part Number	SH-U09C2
Model Number	SH-U09C2
Number of Items	1
Number of Ports	1
Package Quantity	1
Power Plug Type	No Plug
Product Finish Type	Plastic
Specific Uses For Product	Programmierung, Debugging, EEPROM, Router, ESP8266 Modul, GPS-Module, Firmware auf Festplatte, Sender, Set-Top-Box
UPC	734678383287
Unit Count	1.0 count
Warranty Type	12 months warranty.if

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₱2199

Duties & taxes included

In stock

Sold byAmazon PhilippinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Philippines.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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