Best Serial Adapters 2026

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Last Updated - 22.07.2026

Best Choice

01

DriverGenius

DriverGenius USB232A-B-A | USB to Serial RS232 Adapter with 3 x Data Monitoring LEDs, Compatible with Windows 11/macOS 15-1-Port

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide Application Suitable for older devices, modems, POS systems and industrial equipment. Connect RS232 hardware to modern computers via USB. Note: Not compatible with serial mice, PC keyboards or some non-standard serial printers
USB to Serial Adapter (SerialEdgeX, 1-Pack): Full RS232 signal support for device setup, console access, and serial communication. Supports PLCs, network switches, barcode scanners, medical devices, oscilloscopes, scales and other RS232 devices
EFFICIENT RS232 SPECIFICATIONS: 3-foot cable, up to 921.6Kbps, 512-byte FIFO buffer and PL2303 chipset. Supports 5/6/7/8 data bits and multiple parity modes. DB9 screws ensure stable connections while copper shielding reduces EMI/RFI interference.
DriverGenius SerialEdgeX connectivity: compatible with Windows (not ARM), macOS and Linux. Drivers available via DriverGenius or the Mac App Store. Includes 2-year support and 24/5 multilingual technical assistance for reliable RS232 communication
3 Status Monitoring LEDs: Real-time display of sending, receiving & power status via 3 LEDs (Green: TX | Yellow: RX | Red: PWR). | 3ft cable | Max. Baud rate 921.6 Kbps | 512-byte FIFO | Parity modes: odd/even/mark/space/none | 5/6/7/8 data bits

18,99 €
02

Digitus

Digitus 9m USB 2.0 to DSUB Serial Converter

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With the USB to Serial Converter you can easily connect serial peripheral devices with RS-232 interface or COM port to your notebook, single-platform computer or server system.
Together with the included USB extension cable, the adapter can be used as approx. 85 cm long adapter cable or simply used individually as a USB adapter for a COM interface.
The serial adapter with a 9-pin D-SUB connector features an FTDI / FT232RL chipset for individual configuration and full duplex data transfer at up to 128 Mbps.
In addition to remote wake-up power management is also supported - The converter is compatible with Windows (10, 8.1, 8, 7, Vista, XP), Mac OS X and Linux.
As today's PCs usually no longer have serial ports, the adapter is ideal for operating e.g. weather stations, sensors, machine controls, modems or ISDN systems.

14,99 €
03

UGREEN

UGREEN USB to RS232, USB Serial Cable DB9 Converter for Cisco Routers and Switches, Celestron Telescope Nexstar hand Controller and Extron and Crestron Products, Support Windows 10 and Mac, 2m

26% Off Limited Time Deal

26% Off

Limited Time Deal

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide compatibility: With the PL2303 chipset, the serial to USB adapter supports Windows 11/ 10/ 8.1/ 8/ 7/ Vista/ XP/ 2000, Mac OS X 10.6 and more.
STRONG AND DURABLE Designed to withstand over 10,000 insertions and 10,000 bends, plugging and unplugging devices without worry. The ports match the device ports exactly to prevent premature disconnection.
RS232 USB adapter: the USB serial cable helps you connect serial devices such as serial DB9 devices. It allows any computer, serial devices (RS232, DB9) such as PCs, routers, GPS, barcode scanners, barcode machines, serial modems, digital cameras, card readers, PDAs, mobile phones, PDAs/ISDN terminal adapters to connect via the USB port.
High-quality materials: the USB DB9 cable consists of multiple shielding and provides better protection against interference. Tinned copper wires and gold-plated connectors ensure good conductivity.
Excellent Performance Built-in PL2303 chip ensures more stable and reliable transmission. The transfer rate is between 75-115200 bps. The USB serial adapter supports null modems. You can configure COM ports in Device Manager. It is also able to detect suspend USB.

12,52 € 16,99 €(26% Off off)
04

Greluma

Greluma 9 Pin RS-232 DB9 Male to Male / Female to Female Serial Cable Gender Changer Coupler Adapter Pack of 10

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Widely used: DB9 connector can be used to connect computers to various devices with serial interface such as RS232C devices such as scanners, printers, plotters, single chip computers, microcontrollers, industrial instruments, etc. Can be used
Stable data transfer: Mini gender changer db9 is shaped and fully shielded to avoid unwanted EMI/RFI interference for clear and stable data transmission
Premium material: DB9 gender changer made of metallic iron, nickel-plated shielding shell is durable and rustproof; pure copper pins ensure good conductivity
Package includes: 5 x DB9 gender changer from man to man and 5 x DB9 gender changer from woman to woman, used for serial cable gender changers
Easy to use: these 9-pin DB9 male and female adapters allow file transfer between two computers or other devices. No driver needs to be installed. Very easy and quick connection

8,99 €
Value for Money

05

AZDelivery

AZDelivery 1 x USB-C to TTL Serial Adapter for 3.3 V and 5 V Compatible with FT232RL Compatible with Arduino Includes E-Book

38% Off

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With the free eBook from AZ-Delivery, you can get started directly with your project without having to deal with the setup of the product for a long time.
This product contains an e-book that contains useful information about the beginning of your project, it helps with a quick setup and saves time in the configuration process. We offer a range of application examples, complete installation guides and libraries.
The USB-C serial adapter is one of the most used converters on the market. This is due to the fact that a signed driver is stored with Microsoft, which installs itself via Windows Update after connecting the module.
No additional drivers are required for the AZDelivery adapter compatible with FT232-AZ and the logic level can be adjusted via the jumpers on the board.
Even when used with Linux, the AZDelivery converter is very popular.

2,99 € 4,79 €(38% Off off)
06

UGREEN

UGREEN 20210 USB Serial Cable, USB to RS232 DB9 9 pin Converter Cable 1m for Connecting Cisco Routers and Switches,Celestron Telescope Nexstar hand Controller and Extron and Crestron Products, Support Windows 10/8/7/Vista/XP/2000 and Mac OS X 10.6 to 10.11 EI Capitan with PL2303 Chipset

18% Off Limited Time Deal

18% Off

Limited Time Deal

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide compatibility: With the PL2303 chipset, the serial to USB adapter supports Windows 11/ 10/ 8.1/ 8/ 7/ Vista/ XP/ 2000, Mac OS X 10.6 and more.
STRONG AND DURABLE Designed to withstand over 10,000 insertions and 10,000 bends, plugging and unplugging devices without worry. The ports match the device ports exactly to prevent premature disconnection.
RS232 USB adapter: the USB serial cable helps you connect serial devices such as serial DB9 devices. It allows any computer, serial devices (RS232, DB9) such as PCs, routers, GPS, barcode scanners, barcode machines, serial modems, digital cameras, card readers, PDAs, mobile phones, PDAs/ISDN terminal adapters to connect via the USB port.
High-quality materials: the USB DB9 cable consists of multiple shielding and provides better protection against interference. Tinned copper wires and gold-plated connectors ensure good conductivity.
Excellent Performance Built-in PL2303 chip ensures more stable and reliable transmission. The transfer rate is between 75-115200 bps. The USB serial adapter supports null modems. You can configure COM ports in Device Manager. It is also able to detect suspend USB.

10,62 € 12,99 €(18% Off off)
07

Digitus

Digitus 70166 USB Type C Serial Adaptor, Black

42% Off

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

With the USB-C to Serial Converter you can easily connect serial peripheral devices with RS-232 interface or COM port to your notebook, ultrabook or Mac book.
Together with the included USB extension cable, the adapter can be used as approx. 85 cm long adapter cable or simply used individually as a USB adapter for a COM interface.
The serial adapter with a 9-pin D-SUB connector features an FTDI / FT232RL chipset for individual configuration and full duplex data transfer at up to 128 Mbps.
In addition to remote wake-up power management is also supported - The converter is compatible with Windows (10, 8.1, 8, 7, Vista, XP), Mac OS X and Linux.
As today's PCs usually no longer have serial ports, the adapter is ideal for operating e.g. weather stations, sensors, machine controls, modems or ISDN systems.

12,09 € 20,90 €(42% Off off)
08

Digitus

DIGITUS USB to Serial Adapter - RS232 Converter - USB 2.0 Type-A to DSUB 9M - PL2303GT Chipset - Includes 80cm Cable

16% Off

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

With the USB-C to Serial Converter you can easily connect serial peripheral devices with RS-232 interface or COM port to your notebook, ultrabook or Mac book
Together with the included USB extension cable, the RS-232 adapter can be used as approx. 80 cm long adapter cable or simply used individually as a USB adapter for a COM interface
The serial adapter with a 9-pin D-SUB connector has a PL2303GT chipset for individual configuration and full duplex data transfer at up to 128 Mbps
In addition to remote wake-up, power management is also supported - the converter is compatible with Windows (10, 8.1, 8, 7, Vista, XP), Mac OS X and Linux
As today's PCs usually no longer have serial ports, the adapter is ideal for the operation of e.g. weather stations, sensors, machine controls, modems or ISDN systems

9,19 € 10,90 €(16% Off off)
09

Logilink

LogiLink USB 2.0 (Type-A) to Serial (RS232-9pin) Adapter for Win 11

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Supports RS232 serial port - Data rate: up to 115 Kbps
Connector 1: USB 2.0 Type-A Male - Connector 2: DB9 (RS232) Male
Compatible with USB 1.1/2.0 specification - Compatible with Mac OS, Linux and Windows operating systems up to Windows 11
Colour: black
Chipset: PL2303GT - Powered by USB port

12,02 €
10

AZDelivery

AZDelivery 3 x USB-C to TTL Serial Adapter for 3.3 V and 5 V Compatible with FT232RL Compatible with Arduino Includes E-Book

35% Off

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

With the free eBook from AZ-Delivery, you can get started directly with your project without having to deal with the setup of the product for a long time.
This product contains an e-book that contains useful information about the beginning of your project, it helps with a quick setup and saves time in the configuration process. We offer a range of application examples, complete installation guides and libraries.
The USB-C serial adapter is one of the most used converters on the market. This is due to the fact that a signed driver is stored with Microsoft, which installs itself via Windows Update after connecting the module.
No additional drivers are required for the AZDelivery adapter compatible with FT232-AZ and the logic level can be adjusted via the jumpers on the board.
Even when used with Linux, the AZDelivery converter is very popular.

5,79 € 8,95 €(35% Off off)