DSD TECH SH-U09C5 USB to TTL UART Converter Cable with FTDI Chip Support 5V 3.3V 2.5V 1.8V TTL 0.33FT

Used this to successfully connect to the serial port on a BeagleBone Black SBC.Worked right out of the box on my Debian Linux machine (appears as ttyUSB0), no need to install drivers, but be careful to set the TTL voltage level BEFORE connecting to the target (3.3v in my case). Also, make sure that TX pin on the device is connected to RX pin on the target and vice versa. Looks like other serial control signals are available as well if you need more than just the basic 3 wire hookup I used.Excellent piece of kit however you may need a USB extension as the included serial cable is quite short.

Although I've used it to flash many other ESP-based devices I couldn't get my "cheap" FTDI adaptor to talk to a Sonoff ZbBridge at all despite trying for a few hours. I ordered this adapter, it arrived the next day, and just worked perfectly straight away. It's really nicely made, has many output options, and even has a case which is much better than the bare circuit board version I was using before.

I used this to repair an old CRT monitor. Worked first time and was able to get Windows XP drivers easily from their website. Perfect.

Having wasted £5 on a cheap USB to serial converter on a popular online auction site only to find the drivers available wouldn’t work at all, this worked straight away with OSX Monterey - supported by drivers in the Apple kernel so no driver downloads required. The variable voltage level will be handy, and the clear plastic casing gives it a degree of protection meaning it should last a while. As with most things, to get what you pay for! Recommended.

The product arrived before the promised time. Packed qualitatively. The technical characteristics are similar to those indicated on the seller's website. I recommend the seller.

I purchased this to flash a Sonoff Zigbee bridge after finding that none of my existing USB to serial adaptors would connect. The DSD TECH adaptor connected the first time and the wide range of output voltages available from the adaptor seriously expands the range of devices I can connect to without breaking out a desktop power supply.The supplied case is a welcome addition and should help to protect the adaptor against accidental shorts or damage vs the standard USB to serial UART adaptors that are generally supplied bare.Another item that is not normally included with these devices is an additional jumper block allowing you to test the adaptor is working by creating a serial loop (any information sent via serial is immediately sent back to the adaptor and can be viewed via a serial port monitor such as the one built into the Arduino IDE), while not vital, this is a thoughtful addition and something that might help new users with testing.Overall, I'm very happy with the product and will update the review in the future if there are any issues with durability.

I needed this quickly to help with a project that uses 1.8V TTL serial signalling (sometimes known as LVDS). I'm not an expert on this and was dismayed when all the transceivers were needing 3.3V or 5V. Glad I found this, as it's worked perfectly. it came in a box with some instructions, the necessary jumper, a test jumper and a 6-way prototyping cable. The plastic box means it's not a bare PCB connecting to your PC, but still looks like a development tool. I would recommend this if you need 1.8V or 2.5V signalling, and it can do 3.3V and 5V too, so perhaps the only USB to RS-232 transceiver you'll need.

Good, versatile, configurable device. Worked out of the box to flash new firmware to my router via UART. Top tip: if you find you’ve accidentally obscured the charging port on your laptop but don't want to unplug this device, the outer plastic case can be popped off to reduce its width and allow access…!