Best Serial Adapters Deals of Nov 2026

Updated November 10, 2026Our site contains affiliate links for which we may be compensated.
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Price Below Average

OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)…

!!Please NOTE: this is MALE RS232 to DB9 SERIAL CABLE ,Not VGA!!!It is 9 pin, NOT 15 pin!! Look carefully of the Pin is match with your device. Before ordering , please confirm the interface gender is waht you need. After receiving ,please read user manual /instruction at first and download the Driver at first from FT232 Official website or Cisco website . Customer service always online.
Wide range of applications: USB to RS232 DB9 male serial adapter can work with your Windows (10 / 8.1 / 8 / 7 / Vista / XP), MAC or Linux system and other platforms. USB adapter is designed to connect to serial devices, such as serial modem with DB9, ISDN terminal adapter, digital camera, label writer, palm computer, barcode scanner, PDA, cash register, CNC, PLC controller, tax printer, POS, bar code scanner, label printer, etc
High quality: ftdi usb serial,the latest ftdi chip set ensures more reliable and faster operation. USB 2.0 to RS232 male DB9 console cable will support 1Mbps date transfer rate.
Most convenient: rs232 to usb simple installation, plug and play, COM port creation, baud rate can be changed to the required settings. USB power supply - no external power supply required.
Exquisite design: usb-to-serial,Gold Plated USB RS232 connector and PVC cable ensure high performance and extra durability. Powered by USB port, this USB to DB9 series RS232 adapter cable is designed to fit easily into your handbag.
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DTECH Serial Adapter 3-Pack (DB9 F-F, M-F, M-M), Mini Size RS232 Coupler, Female to Male 9 Pin Connector, for PC Computer Data Transfer

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Gearmo USB to Serial RS-232 Adapter with LED Indicators, FTDI Chipset, Supports Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above

[ USB to RS-232 Serial Adapter ] : 5ft Cable Length - Easily connect legacy DB-9 serial devices to modern USB-equipped computers. Uses include industrial, lab, and point-of-sale applications.
[ Easy Testing ] : Built-in signal tester features full LED indicators with dual-color display for quick and easy testing of RS-232 host-to-device connections.
[ Wide Compatibility ] : Built with an FTDI Chipset. Works seamlessly with Windows 7, 8, 10, 11, Linux, and macOS 10.X, making it a highly versatile solution across platforms.
[ Why Gearmo? ] : Your trusted partner based in the USA, providing advanced engineering, highly reliable and superior built products to handle the most demanding industries for over 10 years.
[ Engineering Support ] : Need specs? Contact us for CAD files, mechanical drawings, or datasheets to support your integration or project needs.
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OIKWAN USB Type C to RS232 DB9 Serial Port Adapter Cable, FTDI Chipset, Supports Windows 11, 10, 8, 7 and Mac Linux

!!Please NOTE: this is MALE Type-C RS232 to DB9 SERIAL CABLE ,Not VGA!!!It is 9 pin, NOT 15 pin!! Look carefully of the Pin is match with your device. Before ordering , please confirm the interface gender is waht you need. After receiving ,please read user manual /instruction at first and download the Driver at first from FT232 Official website or Cisco website . Customer service always online.
How it works: Use USB-C transfer rate up to 1Mbps to RS-232 converter to realize data transfer between PC or laptop with USB Type C port and RS-232 device, allows your PC or laptop to connect RS-232 serial devices and programs that communicate through COM ports.
Connectors :USB Type C male, RS232 db9 male,USB Type C 2.0 male to USB DB9 male
Chipset & Supported OS: FTDI-FT232RL Chipset for widest possible stablity and compatibility with Windows (10/8.1/8/7XP), Mac, Linux, etc. Support almost all serial COM port
Plug and play: Powered by USB-C port, no external power adapter required. Simple installation, plug & play after one time driver installation.
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19% Off

StarTech 4-Port USB to Serial RS232 Hub, Industrial, TAA (ICUSB2324I) | FTDI USB to DB9 RS-232 Adapter Hub, DIN Rail and Wall Mountable, COM Port Retention

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HJHYUL CP2102 USB to TTL Serial Adapter – USB 2.0 to 5Pin UART Converter Module with 3.3V/5V Output, STC Compatible, Includes Jumper Wires – for Arduino, ESP8266, STM32, DIY Projects (3-Pack)

Stable & Trusted CP2102 Chipset – Built with the reliable CP2102 chipset for stable data transmission and consistent performance in embedded and serial communication projects.
Flexible Baud Rate Range – Supports a wide range of baud rates from 300 bps to 1.5 Mbps, meeting various data transmission needs for microcontrollers and development boards.
Plug-and-Play USB Connectivity – Easily connects your TTL serial devices to a computer via USB. No external power supply needed. Ideal for Arduino, ESP8266, STM32, STC, and more.
Standard Pin Configuration – Features USB Type-A male and TTL 5-pin female header (3.3V, RST, TXD, RXD, GND). Compatible with both 3.3V and 5V logic levels, ensuring broader hardware support.
Broad OS Compatibility – Works with Windows 98SE/2000/XP/Vista/7/10/11, Mac OS 9/X, and Linux 2.4+, making it a versatile solution for developers and DIY electronics enthusiasts.
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Sabrent

SABRENT USB 2.0 to Serial 9-Pin DB-9 RS-232 Converter Cable, FTDI Chipset, 6 Feet (CB-FTDI)

Cable Length: 6 ft cable provides extended reach for convenient connectivity between your USB port and serial devices
Side Connectors: Male Thumbscrews ensure secure and stable connection to your serial devices
Power Management Features: Supports remote wake-up and power management with no IRQs and no IRQ conflicts for hassle-free operation
Data Transfer Buffer: Provides a 96 byte buffer for each upstream and downstream data transfer ensuring smooth data flow
USB Compatibility: Compatible with USB Specification v1.1(0) & USB CDC v1.1, USB 2.0 for broad device support
FTDI Chipset Technology: Utilizes genuine FTDI chipset for reliable plug and play driverless installation on multiple operating systems
Versatile Connectivity: Connects USB port to traditional RS-232 serial port for cellular phones, PDAs, digital cameras, modems, and ISDN terminal adapters
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HJHYUL CP2102 USB to TTL Serial Adapter Cable, USB 2.0 to UART Converter 4 Pin (TXD RXD GND 5V), 3ft/95cm Long, 3.3V TTL Signal for Arduino, Raspberry Pi, ESP8266, ESP32 (1pcs)

Stable & Reliable CP2102 Chipset - Built with the trusted CP2102 chipset, ensuring stable data transmission and consistent performance. Supports 3.3V TTL logic level communication, making it suitable for most modern microcontroller systems.
Extra Long 3ft/95cm Cable – More Flexible Than Standard Short Cables - Upgraded with a 3ft/95cm extended cable, providing greater flexibility than standard short cables. Perfect for hard-to-reach ports, complex setups and bench testing environments.
Simplified 4-Wire Interface for Easy Wiring - Designed with a 4-pin configuration (TXD, RXD, VCC, GND), making connections faster, cleaner and less error-prone compared to traditional multi-pin modules.
Plug and Play USB to TTL Adapter Cable - Easily connect TTL serial devices to your computer via USB without external power supply. Ideal for Arduino, ESP8266, ESP32, STM32 and other microcontroller platforms.
Wide Compatibility for Development & Debugging - Provides stable 5V power output with 3.3V TTL signal level communication, ensuring reliable performance with Arduino, Raspberry Pi, ESP8266, ESP32 and other development boards.
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Our #1 Pick Today
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OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)…

!!Please NOTE: this is MALE RS232 to DB9 SERIAL CABLE ,Not VGA!!!It is 9 pin, NOT 15 pin!! Look carefully of the Pin is match with your device. Before ordering , please confirm the interface gender is waht you need. After receiving ,please read user manual /instruction at first and download the Driver at first from FT232 Official website or Cisco website . Customer service always online.
Wide range of applications: USB to RS232 DB9 male serial adapter can work with your Windows (10 / 8.1 / 8 / 7 / Vista / XP), MAC or Linux system and other platforms. USB adapter is designed to connect to serial devices, such as serial modem with DB9, ISDN terminal adapter, digital camera, label writer, palm computer, barcode scanner, PDA, cash register, CNC, PLC controller, tax printer, POS, bar code scanner, label printer, etc
High quality: ftdi usb serial,the latest ftdi chip set ensures more reliable and faster operation. USB 2.0 to RS232 male DB9 console cable will support 1Mbps date transfer rate.
Most convenient: rs232 to usb simple installation, plug and play, COM port creation, baud rate can be changed to the required settings. USB power supply - no external power supply required.
Exquisite design: usb-to-serial,Gold Plated USB RS232 connector and PVC cable ensure high performance and extra durability. Powered by USB port, this USB to DB9 series RS232 adapter cable is designed to fit easily into your handbag.
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on Amazon.com
Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

10 Serial Adapters deals are available from: Amazon, starting from $6.98.

The biggest discount we found is 19% on StarTech 4-Port USB to Serial RS232 Hub, Industrial, TAA (ICUSB2324I) | FTDI USB to DB9 RS-232 Adapter Hub, DIN Rail and Wall Mountable, COM Port Retention (ICUSB2324I) at Amazon.

The lowest price we found is $6.98 while the highest is $105.99. Prices for the best Serial Adapters deals average at $24.57.