I tried the older driver available here:http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=223&pcid=126And this seemed to work for Windows 11. Weird that an old driver works better than the latest one.I have the PL-2303 TA chipset. Answer from ejohanson on techcommunity.microsoft.com
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Amazon
amazon.com › pl2303-usb-serial › s
Amazon.com: Pl2303 Usb To Serial
Discover reliable USB to serial solutions. Browse DB9 adapters, TTL converters, and cables compatible with multiple operating systems.
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Plugable
plugable.com › products › pl2303-db9
Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303GT Chipset) ~ Plugable Technologies
May 8, 2019 - The adapter itself has a standard USB-A connector. ... A: PL2303-DB9 uses the standard male RS232 DTE pinout. ... A: Yes, we use only authentic Prolific PL2303GT chips, ensuring compatibility with the latest drivers and operating systems ... Apple macOS 11 through macOS 15 using built-in drivers embedded in the operating system or PL2303 Serial App
Discussions

PL2303 issues (Prolific USB to Serial Drivers) Win 11
I have come across an issue that I don't if anyone has come across and found a fix? I have a few handheld radios that I need to update the frequencies... More on techcommunity.microsoft.com
🌐 techcommunity.microsoft.com
70
2
November 15, 2021
[HELP] PL2303 drivers for linux or alternative
According to https://stackoverflow.com/a/49106819 the PL2303 driver is already in the mainline kernel. There is a pretty good chance it is even already compiled into yours. Are you sure you don't have a `/dev/ttyACMx` or `/dev/ttyUSBx` (where x is any number) device showing up when you plug it in? More on reddit.com
🌐 r/embedded
14
0
September 14, 2023
Prolific PL2303 Serial -> USB on Cisco switches?

my two cents: Had a lot of problems with prolific chip converters. Switched to devices with FTDI chipset and all problems gone away.

More on reddit.com
🌐 r/networking
16
2
June 29, 2017
USB - Serial Prolific PL2303 Chipset Driver issue
This is going to be such a pain to get sorted 200km away without remote access. The best solution I can think of is to send them to a computer shop to buy a new USB to serial adapter, one with a cd containing the current drivers. After all, it's only a serial to USB adapter. They aren't expensive or specialised. Get a good one and you won't even need drivers, as Windows has a standard serial to USB driver built in. More on reddit.com
🌐 r/techsupport
5
8
February 12, 2015
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Manhattan Products
manhattanproducts.us › home › usb-a to serial converter, 45 cm (18 in.)
Manhattan PL-2303 USB to Serial Converter (205146)
USB-A to Serial Converter, 45 cm (18 in.)
Easily connect serial devices through a USB portMost modern computers and laptops don't have RS232 (DB9) ports, making the use of legacy peripherals and high-tech devices which connect with COM ports almost impossible. The Manhattan USB to Serial Converter — with its serial RS232 (DB9) port and Prolific PL-2303 chipset — easily expands a single USB port to connect and support serial modems, barcode scanners, digital cameras, card readers, Ham/Amateur Radios, GPS, CNC machines, telescopes, embroidery machines, fuel injection controllers, PDUs, network switches and other devices.Quality Construc
(4.5)
Price   $13.99
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Amazon
amazon.com › PL2303-Serial-Converter-Adapter-Windows › dp › B0F31TVC78
Amazon.com: PL2303 USB to UART TTL Serial Converter, 3.3V/5V TTL Adapter with Type-C for Windows/Linux/Mac – High-Speed Data Transfer : Electronics
Buy PL2303 USB to UART TTL Serial Converter, 3.3V/5V TTL Adapter with Type-C for Windows/Linux/Mac – High-Speed Data Transfer: Cables & Interconnects - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
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App Store
apps.apple.com › us › app › pl2303-serial › id1624835354
PL2303 Serial App - App Store
PL2303 Serial Driver is a system extension provides the capability to access Prolific's low cost and high performance USB-to-Serial Bridge Controller. Prolific provides a convenient small-factor solution for connecting an RS232-like full-duplex ...
Rating: 0 ​
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Prolific USA
prolificusa.com › products › chips › i/o products › new! usb to uart g series › pl2303gd usb cdc to serial bridge controller
PL2303GD USB CDC to Serial Bridge Controller | Prolific USA | IC Design & Manufacturing
January 5, 2021 - The PL2303GD is a full-featured single chip USB-CDC to UART bridge controller for connecting a full-duplex UART asynchronous serial interface device to any Universal Serial Bus (USB) capable host. The PL2303GD implements the standard USB CDC Device which is natively supported in most of operating ...
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Servo Motor
seengreat.com › product › 233 › usb-to-uart-pl2303
USB to UART TTL Bridge Board PL2303 Serial Converter
This interface converter is a high-performance USB-to-serial port module, which uses PL2303GS chip as the core, supports USB 2.0 standard, and can realize two-way data transmission between USB and serial ports. The module is easy to use, stable and reliable, and is widely used in various electronic ...
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The Pi Hut
thepihut.com › home › pl2303 usb uart board (usb-c)
PL2303 USB UART Board (USB-C) - The Pi Hut
This is a small USB to UART conversion board featuring a PL2303GS USB to serial bridge chip, RS/TX/Power indication LEDS and a USB-C connector.
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Sabrent
sabrent.com › products › sbt-usc1k
USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303) – Sabrent
USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303)
Cable Length: 1 ft cable Side Connectors: Male Thumbscrews Supports remote wake-up and power management Supports automatic handshake mode No IRQs, no IRQ conflicts
Price   $11.99
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Amazon
amazon.com › XICOOLEE-Windows-Connector-Indicators-Compatible › dp › B0C8RJ722Z
Amazon.com: USB to UART TTL Serial Converter Module with PL2303GS Chip, Type-C Interface, 3.3V/5V Switchable, Compatible with Windows, Linux, Mac OS, for Arduino/Raspberry Pi/STM32 : Electronics
🔍 User-Friendly Indicators & Type-C Port: Onboard LED indicators for TXD, RXD, and power status make debugging intuitive. Modern Type-C interface provides flexible connectivity and improved durability. ... PL2303 USB to UART TTL Serial Converter, 3.3V/5V TTL Adapter with Type-C for Windows/Linux/Mac – High-Speed Data Transfer
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Prolific USA
prolificusa.com › products › cables › usb to serial/uart cables › te-c0023 usb to rs232 serial (db-9 male)
TE-C0023 USB to RS232 Serial (DB-9 Male) | Prolific USA | IC Design & Manufacturing
December 12, 2024 - User can download PL2303G AAB on Google Play APP store. https://play.google.com/store/apps/dev?id=5801101758672272902 · Please note that we market our cables to OEM’s and VAR’s only. We do not sell to end users or into retail at this time. ... This resource is for TE-C0023 USB to RS232 Serial (DB-9 Male).
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RobotShop
robotshop.com › home
USB to Serial Converter PL2303 Chipset - RobotShop
Description USB to Serial Converter PL2303 Chipset Cable Length: 960 mm Allow you to connect serial devices to the SBC's USB port Ideal for connecting RS232 devices Connector A: USB Type-A (Male) Connector B: RS-232 DB-9 (Male) The USB to Serial ...
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CDW
cdw.com › product › startech-usb-to-serial-adapter-prolific-pl-2303-com-port-retention-us › 1240909
StarTech USB to Serial Adapter - Prolific PL-2303 - COM Port Retention - USB to RS232 Adapter Cable - USB TAA - ICUSB232PRO - USB Adapters - CDW.com
A time-saving and convenient USB/Serial solution, the adapter retains assigned serial COM port values in nonvolatile memory, allowing the same values to automatically be assigned to the adapter serial port if disconnected and reconnected, or ...
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Varvayanis
varvayanis.com › miscellaneous › Software & Drivers › Prolific PL2303
Prolific PL2303 USB-to-Serial Comm Port drivers
WDF WHQL Driver: v3.8.42.0 (2/22/2023) Windows 7 / 8.1 / 10 Server 2008 / 2008R2 / 2012 / 2012R2 / 2016 / 2019 / 2022 PL2303TA / TB: WDF WHQL Driver: v3.8.42.0 (2/22/2023) Windows 7 / 8.1 / 10 Server 2008 / 2008 R2 / 2012 / 2012 R2 / 2016 / 2019 / 2022 · Driver Installer & Build date:  1.22.0 (1.23.0) - 6/13/2019 (ZIP 12.8 MB) ... WHQL WDF Driver: v3.8.30.0 (6/11/2019) Windows 10 TH1 /TH2 / RS1 / RS2 / RS3 / RS4 /RS5 / 19H1 (32 & 64-bit) Windows Vista / 7 / 8.1 (32 & 64-bit) Compatible with Server 2008 / 2008 R2 / 2012 / 2012 R2 / 2016 (64-bit)
Address   185 Fairview Lane, 95370, Sonora
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Handsontec
handsontec.com › dataspecs › PL2303HX USB-UART.pdf pdf
PL2303HX USB-UART Converter Cable
PL2303HX USB to Serial UART interface IC device which handles all the USB signaling and protocols. Inside the big USB plug is a USB-Serial conversion chip and at the end of the 36" cable are four wire - red
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Office Depot
officedepot.com › a › products › 163089 › StarTechcom-USB-to-Serial-Adapter-Prolific
StarTech.com USB to Serial Adapter Prolific PL 2303 3 ft 1m DB9 9 pin USB to RS232 Adapter Cable USB Serial - Office Depot
StarTech.com USB to Serial Adapter - Prolific PL-2303 - 3 ft / 1m - DB9 (9-pin) - USB to RS232 Adapter Cable - USB Serial
TECH SPECS: 3 feet (91 cm); Prolific ... cables where the conversion takes place at the DB9 end, this USB to serial RS232 adapter features a converter chip on the USB end ·...
Price   $26.99
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Prolific USA
prolificusa.com › products › chips › i/o products › new! usb to uart g series › pl2303gs usb to full uart bridge controller
PL2303GS USB to Full UART Bridge Controller | Prolific USA | IC Design & Manufacturing
June 25, 2019 - The PL2303GS is a low cost and high performance USB-to-Serial Bridge Controller. The PL2303GS provides a convenient small-factor solution for connecting an RS232-like full-duplex asynchronous serial device to any USB host.
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Phidgets
phidgets.com › controllers › single-board computers
USB to Serial Converter PL2303 Chipset - SBC4205_0 - Phidgets
USB to Serial Converter PL2303 Chipset
This adapter cable will allow you to connect serial devices to the SBC's USB port.
Price   $15.00