does this device work with linux 5.4?

Yes, it works great on Linux. It was automatically detected on by Ubuntu machine and shows up on lsusb as: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port with a device name of /dev/ttyUSB0

Is a pinout available please??

For this USB TTL serial cable, you can find the pinout details on the listing page images (the last image), which is TXD - white; RXD - green; VCC - red; GND - black.

Will this work with 4pin rgb lights?

Depends on the lights. If they are standard serial communication at 3.3V, then yes. Power will have to be from elsewhere.

Where are the drivers located?

No extra drivers are needed for Linux. The pl2303 Linux driver is usually included in desktop Linux distros. You will probably find the driver in /lib/modules//kernel/drivers/usb/serial/pl2303.ko

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DTECH USB to TTL Serial 3.3V Adapter Cable TX RX Signal 4 Pin 0.1 inch Pitch Female Socket PL2303 Prolific Chip Windows 10 8 7 XP Vista (6ft, Black)

Product ID: 138973217

Details

Brand
DTECH
Cable Type
USB
Connector Type
4 pin TTL USB
Special Feature
Data Transfer

⚡3 Mbps max data transfer

💾Configurable PL2303 Prolific chip

🔌6ft USB 2.0 cable length

$30.17

Duties & taxes included

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Description

⚡ Unlock Legacy Tech with Modern Speed — Stay Ahead, Stay Connected!

FLEXIBLE 4 PIN FEMALE HEADER - Access TX, RX, VCC, and GND signals with a standard 0.1” pitch connector for versatile hardware interfacing.
SEAMLESS 3 3 V UART INTEGRATION - Effortlessly connect legacy devices with modern USB ports using 3.3V logic level compatibility.
PROLIFIC PL 2303 CHIP WITH EEPROM - Advanced chip with configurable EEPROM lets you customize UART signal inversion and settings for precision control.
PLUG PLAY WITH BROAD OS SUPPORT - Compatible with Windows 10 down to XP and Vista, ensuring hassle-free setup across your devices.
RELIABLE HIGH SPEED DATA TRANSFER - Experience stable communication at up to 3 Mbps, perfect for debugging, programming, and firmware flashing.

The DTECH USB to TTL Serial Adapter Cable features a genuine Prolific PL2303TA chip enabling reliable 3.3V UART communication over a 6-foot USB 2.0 connection. Compatible with a wide range of Windows OS versions, it supports up to 3 Mbps data transfer rates and offers a 4-pin female header for TX, RX, VCC, and GND signals. Ideal for developers and tech professionals needing seamless debugging, programming, or firmware flashing with legacy and embedded devices.

Specifications

ASIN	B07R8BQYW1
Best Sellers Rank	#38 in Serial Adapters #4,224 in Computer Cables & Interconnects
Brand	DTECH
Brand Name	DTECH
Cable Type	USB
Color	4 pin 3.3V
Compatible Devices	computer, Laptop, calculator, MBP, router, microphone, industrial controls, test equipment and instrumentation, consumer electronics, synthesizers, machine tool numerical controls, printers and video display terminals Compatible Devices computer, Laptop, calculator, MBP, router, microphone, industrial controls, test equipment and instrumentation, consumer electronics, synthesizers, machine tool numerical controls, printers and video display terminals See more
Connectivity Technology	USB
Connector Gender	Male-to-Female
Connector Type	4 pin TTL, USB Type A
Customer Reviews	4.3 out of 5 stars 211 Reviews
Data Transfer Rate	3 megabits_per_second
Indoor Outdoor Usage	Indoor
Item Shape	Round
Item Weight	0.27 g
Manufacturer	Guangzhou DTECH Electronics Technology Co.,Ltd
Maximum Voltage	3.3 volts
Model	DT-6553
Model Name	DT-6553
Number of Items	1
Number of Pins	4
Other Special Features of the Product	Data Transfer, PL2303 chip
Part Number	DT-6553
Recommended Uses For Product	Indoor
Special Feature	Data Transfer, PL2303 chip
Specification Met	ISO
UPC	714131653102
Unit Count	1 Count
Warranty Description	1 Year

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