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 TTL 変換アダプター FTDI FT232RL ICチップ内蔵デバッグ/プログラミング用

Product ID: 731464129

Details

コネクタタイプ
USB Type-A
ブランド
DSD TECH
商品の重量
0.2 オンス
商品寸法 (長さx幅x高さ)
38 x 10 x 4 mm
対応デバイス
GPS

⚡FTDI FT232RL IC chip for ultra-reliable data transfer

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

🛡️Transparent protective case guards against static & shorts

€ 36.25

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Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Debug Like a Pro, Connect Like a Boss

LOGIC LEVEL FLEXIBILITY - Easily toggle between 5V, 3.3V, and 1.8V TTL signals with a simple jumper switch—no extra tools needed.
COMPACT DURABLE DESIGN - Slim 38x10x4mm footprint housed in a transparent case that protects your investment from static and accidental shorts.
CONFIDENCE BACKED WARRANTY - Enjoy peace of mind with a 12-month manufacturer warranty and responsive customer support.
UNIVERSAL OS COMPATIBILITY - Works flawlessly across Windows 7/8/10, Linux distros, and Mac OS for maximum workflow integration.
PLUG PLAY DEBUGGING POWERHOUSE - Seamlessly interface with GPS, ESP8266, and UART devices without hassle.

The DSD TECH SH-U09C2 USB TTL Converter Adapter features the original FTDI FT232RL IC chip, supporting switchable 5V, 3.3V, and 1.8V logic levels. Its compact design includes a transparent protective case to prevent static interference and short circuits. Compatible with Windows, Linux, and Mac OS, it’s ideal for programming and debugging ESP8266 modules, GPS devices, and other UART interfaces. Backed by a 12-month warranty, this adapter is a reliable tool for developers and tech professionals seeking seamless serial communication.

Specifications

ASIN	B07TXVRQ7V
Amazon 売れ筋ランキング	パソコン・周辺機器 - 25,396位 ( パソコン・周辺機器の売れ筋ランキングを見る ) シリアルアダプタ - 43位
UPC	734678383287
おすすめ度	4.8 5つ星のうち4.8 (914) var
コネクタータイプ	USB Type-A
パッケージ商品数	1
ブランド名	DSD TECH
ポート数	1
メーカー名	DSD TECH
メーカー型番	SH-U09C2
ユニット数	1.0 個
主電源のプラグタイプ	プラグがありません
互換デバイス	GPS
保証タイプ	限定的保証
保証内容	Manufacturer warranty for 12 months from the date of purchase
入力電圧	5 ボルト
原産国	中国
商品の重量	0.2 オンス
商品本体サイズ	38 x 10 x 4 mm
型番	SH-U09C2

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€ 36.25

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered 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 Finland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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DSD TECH SH-U09C2 USB TTL 変換 アダプター FTDI FT232RL ICチップ内蔵 デバッグ/プログラミング用

Details

Details

Description

Specifications

Common Questions

DSD TECH SH-U09C2 USB TTL 変換アダプター FTDI FT232RL ICチップ内蔵デバッグ/プログラミング用