Best Converter Serial Adapters in 2026

Serial adapter allows a serial device to be connected to a USB computer

Plug-and-play convenience:DB9 serial port is seen as a COM port by your computer, and is available for use by any program that accesses COM ports

No need for an external power adapter:draws power directly from your computer via the USB connection

With this USB to TTL adapter, you can establish communication with your board/MCU through your computer. Maximum transmission speed up to 3Mbps

The main chip is FT232RL from FTDI ,High stability. LED indicator for TX,RX,Power,It is very useful when you are debugging or downloading.

Pin Definition: CTS,RTS,RXD,TXD,GND,VCC;Support VCC output 3.3V and 5V, switch by jumper.

Product 1: MAXIMIZED PORTABILITY: This USB to serial RS232 adapter with FTDI features a single cable design removing the need for additional adapters and cables

Product 1: CORRECT DTE/DCE CONFLICTS: Convert your available USB port into a null modem RS232 DB9 serial port, resolving any DTE/DCE conflicts

Product 1: BROAD COMPATIBILITY: Compatible with your USB 1.0 or 2.0 ports, this RS232 converter works with your Windows, Mac or Linux systems

How it works: This USB to rs232 adapter connects to serial devices via a USB port, such as serial digital cameras equipped with DB9, label writers, handheld computers, barcode scanners, PDAs, etc. This USB to serial adapter is widely used in shopping malls, offices, etc.

Multi-system compatibility: This usb to serial adapter is compatible with Win 7 8 10 Win XP Vista Mac OS Linux system. It would automatically update the driver for Win8 and above. For windows 7, Mac OS, please install the CD driver in the package. Note: Linux only supports the use of kernel version 2.6-5.2.

Multi-device compatibility: This USB to rs232 adapter is suitable for computers (computers or laptops) to connect various RS232 serial devices, such as cash registers, LED and LCD text displays, digital cameras, POS, Bar code scanners, door control system, printers, CNC controllers, scanners, etc.

MULTI-USE FUNCTIONALITY - Quad Port Serial Adapter with FT4232 FTDI Chipset, that supports an automatic handshake allows for digital signage to connecting point of sales systems and barcode scanners.

EASY INSTALLATION - This serial adapter lets you enjoy simple installation and operation with COM port retention that provides robust serial connectivity for legacy devices. With no power supply needed, easy plug and play USB interface options.

COMPATABILITY - With support on multiple OS platforms this makes ours very versatile. Supported OS platforms are Windows 7, 8 and 10 as well as Linux and MacOS 10.X

★ Please install drivers from CableCreation website before getting it to work.★ Connectivity: connect serial DB9 (9 PIN) devices such as a modem to a USB port on your computer. Installed as a standard Windows COM ports, Full RS-232 modem control signals, RS-232 data signals; TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND.

►Built-in with FTDI Chipest: supports Windows 10/ 8.1/ 8/ 7/ Vista/ XP/ 2000 / Linux 2.4 or above, Mac OS X 10.6 and above,OpenBSD 2.9 and later & FreeBSD 4.7 and above.

►Wide Compatibility: USB to RS232 adapter works with modems, ISDN Terminal Adapters, digital cameras, label writers, palm PCs, PDAs, cashier register, CNC, PLC controller, tax printer, POS, bar code scanner, label printer, and devices with DB9 serial ports.

USB to RS485/RS422 converter It easily lets you connect RS485 or RS422 device directly to your Laptop PC computer USB port

RS485 Serial to USB adapter is ideal for industrial environment -provides 600w surge protection and 15KV ESD isolated protection on signal pins to protect costly and often sensitive control equipment against electrical damage

USB to RS485 cable adapter is with high performance quality processor chip (FTDI-chipset FT232) and I/O auto conversion circuitry which makes RS 485 to USB convertor one of the most reliable dongle on the market

CONNECTIVITY – This USB to RS-485/ RS-422 serial converter with LED for RX, TX, and Power. Allows for a full range of testing for this device.

UNIQUE CIRCUIT - The converter contains a unique I/O circuit with an internal zero delay. The auto transceiver within controls the data stream automatically without any handshaking signals such as RTS, DTR, etc.

SUPER COMPACT DESIGN - The USA-422485 is a small, compact converter that handles big communication jobs in converting RS 485 to RS 422.

RS485 Serial to USB adapter enables you to make a stable connection for your PC and RS485 or RS422 device via USB port, no computer freeze, IRQ, DMA or COM port conflict

USB to RS485 converter with FTDI chip supports you the widest possible OS compatibility ( Windows 11, 10, 8, 8.1, 7, Vista, XP, Linux and Mac )

With power, TX and RX LED indicators to check connection and communication activity; terminal block is well-labeled for you to easily wire it to your device correctly

This is an industrial USB to RS485 converter with original FT232RL inside. It features embedded protection circuits such as lightning-proof, resettable fuse, ESD protection, and TVS diode, etc. It's pretty small in size.

The USB TO RS485 is very easy to use, allows automatic transceiving. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.

USB to RS485 communication. Adopt original FT232RL, fast communicating, stable and reliable, better compatibility.

Industrial grade USB to RS485 RS422 converter. It easily lets you connect any RS485 or RS422 device directly to your computer's USB port

The main chip is FTDI FT232RL. Built-in 15KV ESD protection and TVS overvoltage protection. Enough for you to deal with different occasions.

LED for RX TX and Power.

CONNECTIVITY – 3 ft. blue USB to RS-232 serial converter cable with clear USB jacket. Works by connecting the USB Type-A port into the host computer, and then connecting the RS-232 DB-9 male end to the female serial port.

LED INDICATORS - LED activity indicators for Power, TX and RX serial signals. The LED’s allow a visual indication of the signal activity as TX and RX RS-232 signals are communicating.

CHIPSET- FTDI Chipset Inside: FT232RL and Ultra Fast 920K ZyWyn ZT232E for superior operation in serial communication.

9 pin serial to USB cable male to male port allows PC to connect serial RS-232 devices and programs that communicate through COM port (NOT VGA-Monitor-Video-Cord )

RS232C DB9 to USB adapter with gold plated connector ensures reliable data communication compared to the nickel plated DB9 interface

RS232 to USB cord with prolific PL2303 chipset supports Windows 11 10 8.1 8 7, Mac OS8 or higher, Linux 2.4.0 and later

USB 1.1 and 2.0 compatible

Work with serial GPS devices, converts the serial interface on your GPS unit to USB

LED status light for data transfer monitoring

Commercial Grade Bi-Direction RS232 to RS485 Converter used in Industrial Long-haul Communication up to 4000ft (1200 meters)

Mini RS 232 to 485 serial adapter enables the connections of multiple bus nodes and 32 devices can be joined in RS-485 network

Automatic RX - TX Control; RS-232 to RS-485 Converter controls the “Receive” and “Transmit” modes automatically

A simple, cost effective solution to process serial data communication between RS232 COM port devices over inexpensive cat5 cat6 RJ45 network cable

DB9 female to RJ45 modular adapter converts DB9 female connector into an RJ45 female connector (DB9 female - RJ45 Female pinout: 1-1, 2-2, 3-3, 4-4, 5-5, 6-6, 7-7, 8-8, 9-x)

A pair of DB9 to RJ45 socket coupler can be used a extender to extend rs232 serial signals up to 65ft

This USB 2.0 to RS-232 Serial Adapter provides instant connectivity with modems, ISDN Terminal Adapters, PDS, handheld & pocket PCs, digital cameras, POS, label riters,serial printers etc. It is suitable for remote access, retail and industrial applications, data collection and other applications requiring a High speed and or Low serial communications port. 

Connect a RS-232 Serial device to the USB port on your computer or Android tablet

Compatible with Windows 10, 8, 7, Vista, 2000, XP, 98, Apple MAC OS8 or higher, Linux 2.4.0 and later, OpenBSD 2.9 and later & FreeBSD 4.7 and later

This is a serial RS232 to Ethernet server, used for data transparent transmission. USR-TCP232-302 is a low-cost serial device server,whose function is to realize bidirectional transparent transmission between RS232 and Ethernet. USR-TCP232-302 is internally integrated with TCP/IP protocol. User can apply it to device networking communication.

Support DHCP, automatically obtain an IP address and query IP address through serial setting protocol, Support DNS function, Set parameters through webpage, Upgrade firmware via network.

Auto-MDI/MDIX, RJ45 port with 10/100Mbps, Serial port baud rate from 600 bps to 230.4 Kbps, Check bit of None, Odd, Even, Mark and Space.

6 ft USB to TTL serial adapter (with 3 pin 0.1” pitch female header socket) connects devices with 3.3 V logic level UART signals interface to a laptop via USB port

A genuine FT232RL chip module is housed in USB 2.0 type A male terminal for wider compatibility and supports reliable data transfer rates

6 feet FTDI USB to TTL serial cable (3 way output flying leads ) provides access to UART (transmit) Tx, (receive) Rx and GND

Ultra compact board size:15 x 14 mm, FCC Certified

Male DB9 Connector (RS232)

Supports 3V to 5.5V power supply (***The Rx/Tx logic level is equal to the Vcc-supply.*** Vcc: 3.3V -> Rx/Tx High Logic Level: 3.3V. Vcc: 5V -> Rx/Tx: 5V )

VGA Projection Adapter: This USB C (Thunderbolt 3)to VGA Adapter enables you to connect a USB C computer or phone to an VGA-equipped display,monitor,projector.It’s a good choice for your presentations, conferences, workshops,trainings ,lectures.You can share ideas with your partners or enjoy a better visual feast with your family.

Wide Compatibility: USB C VGA Compatible with MacBook Pro 2016-2020, MacBook 2015-2020, iPad Pro2018-2020, iMac2017-2020, Dell XPS 15 / XPS 13, Surface Book 2, Lenovo Yoga 920, Pixelbook, HP Envy 13, Galaxy Book, Pixelbook,Galaxy S10/S9/S9 plus /S8, Huawei Mate 10,and many others(more details in description).Note:Compatible with USB-C laptops / smartphones / tablets that support USB-C DP Alt Mode

Compact &Human Design: VGA USB Compact and lightweight, with user-friendly non-slip design for easier plug and unplug. Braided nylon cable for extra durability. Premium aluminium casing for better heat insulation. More Stable and Safer.Fits snugly with the USB-C ports on your devices, better signal transfer protection.

USB TO RS232 SERIAL – 5ft in length serial adapter. Connect legacy DB-9 serial communications devices to a modern computer with USB

EASY TEST - Easy test RS-232 host to device link. With a full LED, dual color display, tester output. This will make testing your connections with ease.

COMPATABILITY - With support on multiple OS platforms this makes our USB RS- 232 very versatile. Supported OS platforms are Windows 7, 8 and 10 as well as Linux and MacOS 10.X

Dual Serial Device Server: Cpu: Cortex-M4 120Mhz, Serial RS485 & RS232 to Ethernet Server, 2 Serial Ports: 1 Port is RS232, 1 Port is RS485, 1 RJ45 Ethernet Port. Support RS232 & RS485 Working at The Same Time.

Data Link Protocol: Ip£¬Tcp£¬Udp£¬Dhcp£¬Dns£¬Http£¬Arp£¬Icmp£¬Web Socket£¬Httpd Client.

Speed: 10 / 100 Mbps, Mdi / Mdix Cross Direct Automatic Switching, Baud Rate: Rs-232£º600Bps ~ 230. 4Kbps£¬Rs-485£º600Bps ~ 1Mbps; 1.5Kv Electromagnetic Isolation, Shell Isolation Protection; Anti-Static 2Kv, Lightning Protection.

☑️ Provide the connection between USB Type C and the traditional RS-232 serial port. Supports remote wake up and power management.

☑️ Compatible with most GPS, modems, printers, scanners, digital cameras ,ISDN Terminal Adapters, label writers, palm PCs, PDAs,cashier register,CNC,PLC controller,tax printer,POS, bar code scanner, label printer,and more devices with DB9 SERIAL ports.

☑️Use latest Prolific PL2303 chipset compatible with MAC OS, Windows, Android, Linux system USB C Device. For first time to use, you need to install the driver. The driver is available in enclosed CD. You can also to download the latest driver and the product manual from the link we provide.

It's Male Serial to USB cable (9 pin com port to USB A male) that allows your PC to connect RS-232 serial devices and programs that communicate through COM ports (NOT 15 pin-VGA-Monitor-Cable)

FT232RL USB to serial adapter is designed for connecting serial devices such as DB9 equipped PC, router, GPS, Programming machine, barcode scanner, label writer, serial modem, digital camera, card reader, palm PC and digital organizer, etc

1.5ft short USB to RS 232 cord for Windows 11, 10, 8.1, 8, 7, Mac OS 8 or higher, Linux 2.4.0 and later

5x DB9 9 Pin D-Type Female to Female Gender Charger Converter Adapter. Can also be used to connect RS-232 serial cables, Compact Slim line Adapter.

5x DB 9 Adapter male to male

Serial RS232 DSUB connection

Ultra compact board size:15 x 14 mm, FCC Certified

Female DB9 Connector (RS232)

Supports 3V to 5.5V power supply (***The Rx/Tx logic level is equal to the Vcc-supply.*** Vcc: 3.3V -> Rx/Tx High Logic Level: 3.3V. Vcc: 5V -> Rx/Tx: 5V )

DB9 9 pin male to female serial converter - RS232 optical Isolator for RS232C system communication serial port optic isolation protector product

Mini RS232 opto isolator is suitable for terminal devices using 3 wire system (TXD, RXD and GND), such as modem, router, multi-user system and satellite receiver, etc

DE9 RS232 isolated interface adapter protects against the effects of electrostatic discharge, surge, ground loop, faulty wiring and lightning

1M USB 2.0 type A to TTL serial port with 4 pin 0.1 inch socket converter

PL2303 chip module is build in USB housing

high quality PVC cable with Anti-bending design

➤[Wide Compatibility] Support PCI-e 1.0/2.0/3.0/4.0 version. Support PCI-e 4X / 8X / 16X Slot.Perfectly fit with 2230/ 2242 /2260/2280, 4 types of NVMe SSD, Oppatible well with Linux, All Windows Server Versions 2000, Mac OS 9.X, Windows 10, Windows 98,Please Confirm that SSD is Fit

➤【Quick Heat-dissipation】 This PCIE adapter card is made of high-end aluminum with strong thermal conductivity. The appearance design is beautiful and hollowed out to expand the heat dissipation area, and the heat dissipation is more efficient. It can better protect the stability of your NVMe SSD

➤【Easy to install】Including 1x M.2 NVMe PCIe Adapter ,1x aluminum heat sink, 2x Silicone Thermal pad, 1x Screwdriver, Spare Screws. Make precise and close fitting, easy to install, plug and play, and not damage the hard disk.There is a simple installation guide on the picture