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1.76 mi | Ashburn 20147
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DSD TECH SH-U09C5 USB to TTL UART Converter Cable with FTDI Chip Support 5V 3.3V 2.5V 1.8V TTL
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Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Purchase options and add-ons
| Compatible Devices | Laptop |
| Specific Uses For Product | Laptop |
| Connector Type | USB |
| Color | Multicoloured |
| Item dimensions L x W x H | 1.5 x 0.4 x 0.15 inches |
About this item
- Support 4 kinds of TTL levels:This is a versatile USB to TTL converter. It is powerful enough to handle almost all TTL level communications. It is compatible with 5V, 3.3V, 2.5V, 1.8V TTL levels.
- FTDI FT232RNL Chip:Built-in original FTDI Chip.The DSD TECH brand never uses cheap fake chips.
- Protective case:Comes with a protective case, this transparent protective case can effectively prevent static interference from the hand and prevent accidental short circuit
- It provides access not only to UART TX,RX, RTS, CTS, VCC and GND pins,but also provides access to DSR,R1,DCD,DTR,RESET pins
- Customer Support: DSD TECH provides permanent technical support and 1 year product replacement service for this Bluetooth 5.0 BLE to RS232 adapter. All questions will be answered within 1 working day.
Customers usually keep this item
This product has fewer returns than average compared to similar products.
4 stars and above
DSD TECH products customers bought together

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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the electronic adapter works well on both PC and Mac. It has a variety of voltage options that are useful for different projects. They find it easy to wire up and configure for different logic levels. The device is versatile and a great tool for engineers and DIYers. The FTDI chipset is mentioned as being popular.
AI-generated from the text of customer reviews
Customers like the adapter's functionality. They say it works well on both PC and Mac, with no problems and communication between the radio and computers. The program runs smoothly under the Device Manager and has a great range of TTL.
"...Works fine in Linux as well. Nice touch to have a TX and RX LED to indicate traffic. Would buy these again!" Read more
"...This converter worked flawlessly the first time. It has a convenient ribbon cable which is extremely helpful...." Read more
"Works great" Read more
"Successfully flashed an esp board with it. No issues with comparability." Read more
Customers appreciate the voltage options of the electronic adapter. They find it easy to wire up and configure for different logic levels. The adapter allows you to switch between 1.8, 3.3, and 5V by a small jumper clip. The voltage adjustment jumpers change the level on power and data lines.
"...It has a selectable voltage from 1-5 volts, and I believe (based on some data sheets) that I was consuming 250 mA at 3.3V...." Read more
"I bought this because it had the jumper setting for several voltage ranges, was clearly labeled, has a nice enclosure to avoid shorting, and is FTDI-..." Read more
"Worked as expected! no problems and just changing a jumper can handle multiple voltages" Read more
"...Not a fake chip. Easy jumper setting to change output voltage to any (!) of 1.8/2.5/3.3/5v. Solid and well labeled (!!)..." Read more
Customers find the installation process of the electronic adapter easy. They say it's simple to wire up and configure for different logic voltage levels. The jumpers are easy to use, and the instructions are clear. The case is simple, and all pins are exposed for use.
"...In a case, not a bare PCB. Not a fake chip. Easy jumper setting to change output voltage to any (!) of 1.8/2.5/3.3/5v...." Read more
"...Drivers downloaded directly from FTDI work without issue, flawless installation, transparent use, possibly the best 'it-just-works' UART solution I..." Read more
"Just received... Here is the photo of packaging.. I like it.. dummy proof instructions I don't think that is critical, as board has clear marking..." Read more
"...It comes with all the jumpers/cables you’ll need. Was plug and play." Read more
Customers find the electronic adapter useful and versatile. It's a great tool for engineers and DIYers, with clear pinout labels that are helpful even for beginners. The clear pinout is a nice feature and the plastic package around the adapter is good. Many mention it works well and fills the need.
"...It has a convenient ribbon cable which is extremely helpful...." Read more
"Nice piece of tech. Good price. The case is a nice touch to keep it protected but still let me see what I'm getting...." Read more
"This device is very useful. The clear labeling and variety of options for voltages make this a very versatile tool...." Read more
"...It's very handy, and you don't have to buy a separate adapter to deal with the different voltages." Read more
Customers like the FTDI chip. They say it's a real FTDI chipset, has variable voltage support, and works well. It's the most popular UART converter, and PCs like it without dealing with driver issues.
"...This one is hands down the best, probably because it uses a real FTDI chip...." Read more
"...was clearly labeled, has a nice enclosure to avoid shorting, and is FTDI-based. I've bought three or four now and have no complaints." Read more
"...In a case, not a bare PCB. Not a fake chip. Easy jumper setting to change output voltage to any (!) of 1.8/2.5/3.3/5v...." Read more
"FTDI is the most popular UART converter, PCs like it without dealing with driver issue. Also easy to select voltage as well." Read more
Customers appreciate the value for money. They say it's better than cheaper versions, a nice piece of tech, and a good product overall.
"Nice piece of tech. Good price. The case is a nice touch to keep it protected but still let me see what I'm getting...." Read more
"In my humble opinion, this product is the best value you get for your money, and it works as described...." Read more
"...Nice feature and good plastic package around the board. Overall good product" Read more
"Much Better than Cheaper Versions..." Read more
Customers are satisfied with the adapter's compatibility. They say it works well on Windows 10 and Linux without special drivers.
"...Windows 10 just recognized the device with no special drivers. Works fine in Linux as well...." Read more
"Based on the FDTI chip so it was immediately compatible with my Windows 10 computer...." Read more
"This is probably the best USB-TTL adapter I've ever owned. I love the fact that you can change voltages...." Read more
"...adapter to flash an older router with Open WRT - the adapter worked perfectly on Windows 11 after installing the FTDI drivers from the website..." Read more
Customers appreciate the design of the adapter. They find the case a nice touch that keeps it protected while still allowing visibility. The simple and functional design works well, as advertised. Customers also like the TX and RX LEDs.
"...Works fine in Linux as well. Nice touch to have a TX and RX LED to indicate traffic. Would buy these again!" Read more
"...RTS/CTS and even a power output. Magnificent, will recommend to all my friends." Read more
"Nice piece of tech. Good price. The case is a nice touch to keep it protected but still let me see what I'm getting...." Read more
"...Nice little unit!" Read more
Reviews with images
Great device
Top reviews from the United States
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- Reviewed in the United States on August 24, 2024Works perfect, I bought four of these for development boards that have both 1.8V and 3.3V signaling. Windows 10 just recognized the device with no special drivers. Works fine in Linux as well.
Nice touch to have a TX and RX LED to indicate traffic.
Would buy these again!
- Reviewed in the United States on January 4, 2023I needed to connect to a serial device that operated at an unusual baud rate, and bought a number of USB/UART converters. This one is hands down the best, probably because it uses a real FTDI chip. Problems that I have had with other converters: (1) problems with higher-speed and non-standard-speed communications, (2) vcc problems (voltage not matching 3.3V, and dropping further with the slightest current draw), (3) difficult-to-read labeling.
This converter worked flawlessly the first time. It has a convenient ribbon cable which is extremely helpful. It has a selectable voltage from 1-5 volts, and I believe (based on some data sheets) that I was consuming 250 mA at 3.3V.
Anyway, despite the fact that it is a bit pricy, it just worked, which ultimately saved me a lot more money than the cheap ones. I liked it so much I ordered a second one.
- Reviewed in the United States on August 25, 2024Works great
- Reviewed in the United States on July 7, 2024I bought this because it had the jumper setting for several voltage ranges, was clearly labeled, has a nice enclosure to avoid shorting, and is FTDI-based. I've bought three or four now and have no complaints.
- Reviewed in the United States on September 22, 2024Unfortunately all 3 LEDs on the board are red. So, to understand what is blinking, you need to look directly at the board.
- Reviewed in the United States on September 25, 2024Successfully flashed an esp board with it. No issues with comparability.
- Reviewed in the United States on December 18, 2024Worked as expected!
no problems and just changing a jumper can handle multiple voltages
- Reviewed in the United States on November 30, 2022Hands down these are the best serial adapters I've used, and I've used a ton. In a case, not a bare PCB. Not a fake chip. Easy jumper setting to change output voltage to any (!) of 1.8/2.5/3.3/5v. Solid and well labeled (!!) pin headers for the signals, including (!!!) RTS/CTS and even a power output. Magnificent, will recommend to all my friends.
Top reviews from other countries
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RicardoReviewed in Mexico on July 4, 20245.0 out of 5 stars FTDI original
El chip es original, funciona de maravilla
DreamersReviewed in Canada on July 25, 20235.0 out of 5 stars WOW! DSD Tech outdid themselves with this
Truly a great gadget, fairly priced considering i got in in 48 hours. Very handy device for microcontroller programming.
I flashed a SP8285 with new firmware to run my Matek 405-WTE via wifi.
1,2,3,5 V swap the pin. So cool. Comes with your cables. I taped some tape around the ends and labelled each to make it easier. COOL device!
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HalFRReviewed in France on October 30, 20245.0 out of 5 stars Connections de qualite = flashage reussi
Achete pour remplacer des modules plus anciens qui plantaient quasi-systematiquement mes flashings de firmware Sonoff etc.
A marche du premier coup sur un NSpanel.
Il serait parfait s'il y avait un autre rang de connections femelles pour connecter la terre une deuxieme fois et mettre les modules Sonoff ou autres en mode Download.
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Grzegorz GrabowskiReviewed in Poland on October 23, 20245.0 out of 5 stars Dobre urządzenie
Wszystko ok, zgodnie z opisem.
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EugenioReviewed in Spain on September 21, 20245.0 out of 5 stars Compatible con 1,8V
Lo mejor, que puede trabajar con tensiones inferiores a 3,3V; llegando hasta 1,8V.

