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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

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

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

Product ID: 295161520

Details

Colour
Transparent
Compatible Devices
GPS
Connector Type
USB
Item dimensions L x W x H
38 x 10 x 4

⚡3Mbps max speed

🔄Supports 1.8V/3.3V/5V logic levels

🛡️Protective static-shielding case

S$38

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered 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 SINGAPORE.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

🚀 Elevate your debugging game with the ultimate USB-to-TTL adapter—speed, safety, and versatility in one sleek package!

ROBUST FTDI FT 232 RL CORE - Powered by the original FTDI chip for reliable, high-speed USB to TTL communication up to 3Mbps.
TRUSTED SUPPORT WARRANTY - Backed by a 12-month warranty and responsive 24-hour support—because your projects deserve peace of mind.
CROSS PLATFORM COMPATIBILITY - Effortlessly integrates with Windows, Linux, and Mac OS—no driver headaches, just plug and program.
STATIC RESISTANT TRANSPARENT CASE - Keep your adapter safe from static interference and accidental shorts while showcasing your sleek setup.
UNIVERSAL LOGIC LEVEL FLEXIBILITY - Seamlessly switch between 1.8V, 3.3V, and 5V TTL levels with a simple jumper—future-proof your projects.

The DSD TECH SH-U09C2 USB to TTL Adapter features the original FTDI FT232RL chip, supporting 1.8V, 3.3V, and 5V logic levels selectable via jumper. It offers up to 3Mbps data transfer speed and comes encased in a transparent protective shell to prevent static and shorts. Compatible with Windows, Linux, and Mac OS, it’s ideal for programming, debugging, and interfacing with devices like ESP8266, GPS modules, and routers. Includes a 12-month warranty and responsive customer support.

Specifications

ASIN	B07TXVRQ7V
Best Sellers Rank	#13,797 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #39 in Serial Adapters
Brand Name	DSD TECH
Colour	Transparent
Compatible Devices	GPS
Connector Type	USB
Country of Origin	USA
Customer Reviews	4.8 4.8 out of 5 stars (902)
Input Voltage	5 Volts
Item Dimensions	38 x 10 x 4 Millimeters
Item Package Quantity	1
Item Weight Unit of Measure	0.2 Ounces
Manufacturer	DSD TECH
Manufacturer Part Number	SH-U09C2
Model Number	SH-U09C2
Number of Items	1
Number of Ports	1
Power Plug Type	No Plug
Product Finish Type	Plastic
Specific Uses For Product	Programming, Debugging, EEPROM, Router, ESP8266 Module, GPS Modules, Firmware on Hard Drive, Transmitter, Set Top Box
UPC	734678383287
Unit Count	1.0 Count
Warranty Description	no warranty available
Warranty Type	12 months warranty.if

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.