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Serial Adapters - Offering a wide variety of USB to Serial Adapters, USB CAN, and IO Cards providing up to 32 ports
Protocol
Port COunt
The USBG-232MINI Mini USB RS-232 Serial Adapter can be utilized through an existing USB Port to work with your legacy serial connections. It’s great for newer technologies with no serial port connections.
Model# USBG-232MINI
$25.95In stock
RS-232 | 512 Bytes Receive | 512 Bytes Transmit | FTDI Expand Your Serial Capabilities: Connect your legacy 9-pin serial device through a USB-A port to…
Model# USBG-232MM
$27.95In stock
RS-232 | 512 Bytes Receive | 512 Bytes Transmit | FTDI Expand Your Serial Capabilities: Connect your legacy 9-pin serial device through a USB-A port to…
Model# USBG-232
$27.95In stock
RS-232 | 128 Bytes Receive | 256 Bytes Transmit | FTDI Expand Your Serial Capabilities: Connect your legacy 9-pin serial device through a USB-A port to…
Model# USBG-RS232-F12
$21.95In stock
RS-232 | RS-422 | RS-485 | 512 Bytes Receive | 512 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with built in mountable…
Model# USBG-COMi-M
$82.95In stock
RS-232 | 128 Bytes Receive | 384 Bytes Transmit | FTDI Expand Your Serial Capabilities: Connect 2 legacy 9-pin serial devices through a USB-A port…
Model# USBG-232FT-1
$49.95In stock
RS-232 | 128 Bytes Receive | 384 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with built in mountable flanges, the serial adapter…
Model# USBG-2COM-M
$98.95In stock
Expand Your Serial Capabilities: Connect your legacy serial device through a USB-A port to add legacy functionality to newer technologies with no serial port connections.…
Model# USB-232TTLMOS-IS
$54.95In stock
RS-422 | RS-485 | 128 Bytes Receive | 256 Bytes Transmit | FTDI Expand Your Serial Capabilities: The Mini Serial Adapter can be utilized through an…
Model# USB-COMi
$87.95In stock
RS-232 | 512 Bytes Receive | 512 Bytes Transmit | FTDI Superior Build Quality: Housed in a rugged steel chassis with built in mountable flanges, the…
Model# USBG-COM-M
$43.95In stock
RS-232 | FTDI Expand Your Serial Capabilities: Connect your legacy 9-pin serial devices through a USB-A port to add legacy functionality to newer technologies with…
Model# CG-4X232FTDI
$98.95In stock
Terminal Block Connector This Screw-less terminal block adapter is designed for fast and easy connection from DB9 female to spring clamp terminal block wiring for…
Model# TB-DB9TO9
$16.95In stock
RS-232 | 384 Bytes Receive | 128 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with optional mountable flanges, the serial adapter…
Model# USB2-4COM-M
$109.95In stock
RS-232 | 384 Bytes Receive | 128 Bytes Transmit | FTDI Expand Your Serial Capabilities: Connect your legacy 9-pin serial device through a USB-A port to…
Model# USB-COMiPLUS
$65.95Not in stock - Backorder allowed
RS-232 | 512 Bytes Receive | 512 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with built in mountable flanges, the serial adapter…
Model# USBG-COM-SI-M
$109.95In stock
RS-232 | 128 Bytes Receive | 384 Bytes Transmit | FTDI Expand Your Serial Capabilities: The dual port Serial Adapter can be utilized through an…
Model# XC-232-C
$65.95In stock
RS232 Male to Female Serial Data Cable Complete your serial data connection with this 5ft. RS232 DB-9 Male to Female data cable for fast reliable…
Model# 9DBMF5FT
$2.95In stock
RS-232 | RS-422 | RS-485 | 2,000 Bytes Receive | 2,000 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with built in mountable…
Model# USB2-4COMi-SI-TB
$219.95In stock
RS-232 | RS-422 | RS-485 | 384 Bytes Receive | 128 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with built in mountable…
Model# USB-COMi-SI-M
$131.95In stock
USB to Serial Adapter for Bar code Scanners The USBG-COM-X is compact, (only slightly longer than a pen cap) and adds a USB to industrial…
Model# USB-COMPlus
$32.95In stock
RS232 to Ethernet The Industrial 4-Port RS-232 to Ethernet Data Gateway adapter addresses the need to connect individual RS-232C devices to an IP-based Ethernet LAN.…
Model# MSD-SRF4X
$219.95Not in stock - Backorder allowed
Out of stock
RS-232 | 512 Bytes Receive | 512 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with optional mountable flanges, the serial adapter hub…
Model# CG-16COM-MINI
$399.95Out of Stock
Serial USB Adapter - Full RS232 Modem Control The USB-32COM-RM USB to 32 Port RS-232 Serial Adapter is designed for industrial applications and harsh environments making serial…
Model# USB-32COM-RM
$659.95In stock
RS-422 | RS-485 | 384 Bytes Receive | 128 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with optional mountable flanges, the…
Model# USBG-2COMi-SI-M
$208.95Not in stock - Backorder allowed
RS-232 | FTDI Expand Your Serial Capabilities: Connect your legacy 9-pin serial device through a USB-A port to add legacy functionality to newer technologies with no…
Model# USBG-RS232-P12
$18.95In stock
USB to RS232 Cable Windows 11 The USBG-4X2FTDI 4-Port USB DB-9 Serial Adapter is a rugged plastic USB to Serial adapter that allows you to add 4 RS-232…
Model# USBG-4X2FTDI
$76.95In stock
RS-232 | 128 Bytes Receive | 384 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with built in mountable flanges, the serial adapter…
Model# USB2-8COM-M
$214.95In stock
RS-232 | 512 Bytes Receive | 512 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with built in mountable flanges, the serial adapter…
Model# CM-41042
$269.95In stock
USB to RS232 TTL Cable Adapter The new USB to RS232 TTL adapter allows you to control your voltage setting as you need whether 3.3V…
Model# USB-232TTLMOS
$43.95In stock
Out of stock
FTDI USB RS232 DB9 Port Adapter The USBG-4FTDI-B 4-Port USB to Serial RS-232 Adapter for newer computers and laptops that no longer include host serial port…
Model# USBG-4FTDI
$87.95Out of Stock
Out of stock
RS-232 | FTDI Expand Your Serial Capabilities: Connect your legacy 9-pin serial device through a USB-A port to add legacy functionality to newer technologies with no…
Model# USBG-RS232-F36
$27.95Out of Stock
RS-232 | 128 Bytes Receive | 384 Bytes Transmit | FTDI Expand Your Serial Capabilities: Connect 8 legacy 9-pin serial devices through a USB-A port…
Model# USB-8COM
$197.95In stock
USB to DB9 RS485 Serial Isolation Isolated industrial USB to Serial port on USB connect RS-422 and RS485 devices, used in industrial environment. With RS-485…
Model# USB-COMi-SI
$98.95In stock
RS-232 | 512 Bytes Receive | 512 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with optional mountable flanges, the serial adapter hub…
Model# USBG-8COM-M
$249.95In stock
Optical Isolation and Surge Protection for RS-232/422/485 Ports The USB2-8COMi-SI-TB is a USB 2 to 8-port industrial serial adapter that protects you device(s) with optical…
Model# USB2-8COMi-SI-TB
$329.95In stock
Out of stock
USB to RS232 Adapter - DB9 Male Ports The USBG-BAY4 is a 4 port DB-9 RS232 to USB serial adapter that is designed for PC,…
Model# USBG-BAY4
$139.95Out of Stock
RS232 to TTL CMOS Conversion Conveniently convert to TTL from RS232 with this RS232 to TTL CMOS conversion adapter, it supports standard RS232 signals and…
Model# US-232TTL33CON
$54.95In stock
USB to RS232 Adapter - FTDI FT232RL Chipset The 4X232P1 USB 2.0 to Quad Serial Adapter features our USB 4-Port serial adapter allows 4 serial…
Model# USBG-4X232P1
$126.95In stock
Terminal block serial adapter for RS-232/422/485 Our series of Industrial USB 2.0 to terminal block serial adapters support RS-232, RS-422, and RS485 and are designed…
Model# USB2-4COMi-TB
$164.95In stock
USB to Serial Adapter - DIN Rail Mount The USB-16COM-RM is a 16 Port RS-232 industrial style USB to Serial adapter, which allows the use of sixteen…
Model# USB-16COM-RM
$461.95In stock
FTDI USB to Serial Adapter with Switching Power Supply Industrial Grade Rack Mount 8 Port USB RS-232, RS-422, RS485 Octal Serial Adapter with Metal Case and Built-In…
Model# USB-8COMi-RM
$362.95In stock
1 Port CAN Bus For Windows 10 If you're an engineer and involved in vehicle design, industrial automation, or other micro-chip related industry, we have…
Model# CG-1PRTCANB
$80.95In stock
Factory Automation Serial Adapter The USBG-422MINI adapter has No jumper setting to set, The Mini USB to RS-422/485 Plug-in Adapter adds a RS-422 or RS-485…
Model# USBG-422MINI
$43.95In stock
RS-232 | 128 Bytes Receive | 384 Bytes Transmit | FTDI Expand Your Serial Capabilities: Connect 4 legacy 9-pin serial devices through a USB-A port…
Model# USB-4COM
$109.95In stock
RS485 to USB Adapter Auto Transmit A 4-Port RS-422, RS-485 adapter for serial communication that utilizes four external DIP switches for easy access to the signal…
Model# USB-4COMi-M
$197.95In stock
15KV ESD and 600W Surge Protection for RS-232/422/485 Ports Our series of Industrial USB 2.0 to terminal block serial adapters supports RS-232, RS-422, and RS485…
Model# USB2-8COMi-TB
$274.95In stock
USB to RS232 Adapter - FTDI Chipset For computer users that require one new or additional RS-232 connection without the extra cable length. This cable features RX/TX…
Model# USBG-RS232-F72
$32.95In stock
Out of stock
USB to RS232 Adapter The USB-4X-RS232 USB to serial converter is designed for PC, thin client, or server to provide instant COM ports expansion via…
Model# USB-4XRS232
$97.95Out of Stock
USB to RS232 - Prolific Chipset The 36 inch USB to Serial DB9 adapter with Prolific Chipset (CG-RS232-P36) is meant for the shorter connections to…
Model# USBG-RS232-P36
$27.95In stock
USB to RS232 Adapter - 2500Vrms Isolation Industrial 8-Port DB-9 RS232 to USB Adapter to add eight new or additional serial devices to your system.…
Model# CM-41082
$399.95In stock
USB to RS485 DIN Rail Mount The USB-16COMi-RM is an Isolated USB to 16 Port COM Serial Adapter for RS-232 422/485 communication devices. Includes rack…
Model# USB-16COMi-RM
$681.95In stock
Metal USB CAN Bus Adapter This USB to Controller Area Network device (CAN) adapter installs and is automatically recognized by your operating system. It has…
Model# CG-1PRTMCAN
$109.95In stock
USB to RS232 Adapter with FTDI and Isolation The USBG-SSRS1 single port USB RS-232 Adapter fully compatible with USB 1.1 and forward compatible with USB 2.0,…
Model# USBG-SSRS1
$89.95In stock
USB C to RS232 Adapter - 6ft. Cable The USBGear 6ft. USB C to RS-232 Serial Adapter features a new black ultra sleek and powerful design with…
Model# USBG-232MM-C
$27.95In stock
Protect your computer's serial port with this DB9 Male to Female Null Modem Adapter by removing port strain.
Model# DB9-MFRS232-PP
$4.95In stock
RS232 to Ethernet - Two Port Adapter The MSD-SRF2X Dual port RS-232 to Ethernet data gateway will address the need to add 2 RS-232C devices…
Model# MSD-SRF2XM
$186.95In stock
PCI Express Card - Port Protection The SG-PCIE2S422485OCTIS RS422/485 to PCI Express 2 Port Express card provides a high end scalable serial port expansion that accommodates a high-speed…
Model# SG-PCIE2S422485OCTIS
$164.95Not in stock - Backorder allowed
RS485 Serial Adapter for Factory Automation Adapting to new technology, the USB-COMi-TB USB to Industrial Single RS-422/485 Adapter is designed to take industrial serial communication port expansion…
Model# USB-COMi-TB
$69.95In stock
DB9 M to M Data Cable for RS232 Connections Uses screw lock mechanism for secure RS232 signal connections Utilizes a Male DB9 to Male DB9…
Model# DB9PMM
$2.95 – $3.95In stock
$2.95 – $3.95
3ft
6ft
10ft
This option is required
USB to CAN Bus Adapter with Galvanic Isolation If you're using CAN Bus, this USB to CAN Bus adapter is for you. Built small for…
Model# CG-1PMGICAN
$137.95In stock
The USB-2CAN-M provides a cost-effective solution for customers to enable communication with CAN bus devices. The solution designed using an ARM Cortex-M0 32-bit micro controller…
Model# USB-2CAN-M
$142.95In stock
USB to RS232 Serial Adapter USB 2.0 Serial Adapter with Optical isolation and surge protection is available on each serial port and is individually optically…
Model# USB2-4COM-SI-M
$274.95In stock
USB to Serial Adapter with Terminal Block Providing scalability this industrial grade USB to 8-Port Terminal Block serial adapter supports serial port data transfer rates…
Model# SA-8PXTB
$329.99In stock
The MSD-SRP4XM-PRO is a multi-protocol RS-232 / 422 / 485 3-in-1 serial device server that is designed to connect RS-232, RS-422 and RS-485 serial devices…
Model# MSD-SRP4XM-PRO
$274.95In stock
The USB-2CAN-SI-M provides a cost-effective solution for customers to enable communication with CAN bus devices. The solution designed with an integrated ARM Cortex-M0 32-bit micro…
Model# USB-2CAN-SI-M
$186.95In stock
Out of stock
CAN Bus from your Serial RS-232 Port The Serial RS-232 CAN Bus adapter connects to your computer's DB-9 serial port to create the CAN Bus…
Model# CG-1P232CAN
$129.95Out of Stock
Out of stock
USB to RS232 Industrial Serial Adapter Compact Industrial RS232 Serial Adapter bringing 4 DB9 RS232 Ports from one simple connection. Helps expand your system COM…
Model# USB2-4COM-M-CBL
$109.95Out of Stock
RS232 to USB Adapter with Terminal Block SA-8PX-IS Rugged 8-Port Terminal Block RS-232, RS-422, RS-485 USB 2.0 to Serial Converter is an ideal expansion adapter with an industrial…
Model# SA-8PX-IS
$399.95In stock
USB to Serial Adapter - High Speed Prolific Chipset USB DB-9 Serial 72 inch RS-232 Adapter cable for connecting to serial devices without the need for…
Model# USBG-RS232-P72
$32.95In stock
USB to RS485 - 16 x DB9 Male The USB-16COMi-M industrial USB to 16-Port RS-422 485 Serial adapter for adding more serial communication devices to your system…
Model# USB-16COMi-M
$583.95In stock
USB to Serial Adapter for RS422 and RS485 Applications The USB-4COMi-SI-M is a USB to Quad RS-422 485 Optical isolated serial adapter and is designed for…
Model# USB-4COMi-SI-M
$384.95In stock
Terminal Block Connector - Mini Serial RS232 This DB9 to Terminal is designed to convert the RS422/485 signals in a Micro sized package. The iSerial-TB5 DB9-Female…
Model# iSerial-TB5
$21.95In stock
Out of stock
Adds one RS-232, or RS-422, or RS-485 serial port via USB connection. Software configuration for easy RS-232, RS-422, RS-485 mode settings. Remote Serial Port Sharing:…
Model# USB-COMi-PRO
$98.95Out of Stock
USB to RS485 Adapter with Failed Signal Check The USB to RS485 adapter installs automatically once connected to a USB port. When a serial device…
Model# CG-UHS4P485
$172.95In stock
Rugged, compact 16 for USB to serial Get a lot of serial connection out of this compact and rugged adapter! Each COM port can be…
Model# USB2-16COM-M-CBL
$417.95In stock
PCIe to RS232 Add on Card with Octopus cable The PCI Express Add on Card supports RS232 serial connections through an octopus cable enabling 8…
Model# PCIe-8RS2
$196.95In stock
Out of stock
Passive RS232 to RS485 Converter RS232 to RS485 terminal block passive converter to operate in full or half-duplex capacity. Use this compact light weight molded…
Model# US-485TBP
$21.95Out of Stock
Out of stock
PCI Express Card 1 Port RS422/RS485 PCI Express Card provides electrical protection for your serial devices. It maintains a scalable, high-speed serial I/O bus interface.…
Model# SG-PCIE1S422485IS
$126.95Out of Stock
Out of stock
Adds two RS-232, RS-422, or RS-485 serial ports via USB connection. Software configuration for easy RS-232, RS-422, RS-485 mode settings. Remote Serial Port Sharing: allows…
Model# USB-2COMi-PRO
$164.95Out of Stock
Serial to USB Multi-Protocol Adapter This 2-Port serial adapter supports the use of one or two serial protocols simultaneously making it very versatile for many…
Model# CG-232485CBO
$98.95Not in stock - Backorder allowed
Out of stock
USB to RS232 Adapter The USBG-8X-RS232 USB to Serial Adapter Box is designed for PC, it has intelligent expansion modules that connect to a PC…
Model# USBG-8X-RS232
$181.95Out of Stock
Out of stock
Mini PCIe Serial Card Jumper configurable Mini PCIe card for RS422 and RS485 serial applications. High speed PCI Express Bus based and Plug-and-play compliant supports…
Model# CG-2PRT4MPC
$76.95Out of Stock
Serial Device Server - RS232 over RJ45 The Industrial 1 Port DB9 RS-232, RS422, or RS-485 serial port adapter can be installed 100 meters away from…
Model# USBG-IPcom-113
$98.95In stock
Out of stock
PCI Express Card - with Device Protection The SG-PCIE2S422485IS 2 Port RS422 RS485 PCI Express card is designed for easy installation for PC, Work Stations, Thin…
Model# SG-PCIE2S422485IS
$153.95Out of Stock
USB to RS485 2-Port Serial Adapter Support for your existing RS422 and RS485 serial devices doesn't disappear because your new computer doesn't have serial ports. The USB-2COMi-M…
Model# USB-2COMi-M
$197.95In stock
Out of stock
The MSD-SRP1XM-PRO is a multi-protocol RS-232 / 422 / 485 3-in-1 serial device server that is designed to connect RS-232, RS-422 and RS-485 serial devices…
Model# MSD-SRP1XM-PRO
$131.95Out of Stock
Out of stock
DB9 Data Cable for Serial Port Connections 3ft. cable length for short connections Uses screw lock mechanism for secure port connections Utilizes a Male DB9…
Model# DB9PMF
$2.95Out of Stock
$2.95
3ft
6ft
10ft
This option is required
Out of stock
PCI Express Card - 4 Port Serial The SG-PCIE4S422485OCT 4 Port PCI Express RS422 RS485 Card adds four new serial ports to your Work Station,…
Model# SG-PCIE4S422485OCT
$197.95Out of Stock
Out of stock
This TB-DB9TO9CAN DB9 female to screw-less 9-pin terminal block adapter provides a convenient and quick solution to convert a DB9 to a 9-pin terminal block…
Model# TB-DB9TO9CAN
$34.99Out of Stock
Out of stock
This Screw-less terminal block adapter is designed for fast and easy connection from DB9 female to spring clamp terminal block wiring for RS-422 / 485…
Model# TB-DB9TO9ESD
$29.99Out of Stock
The MSD-SRP2XM-TBPRO is a multi-protocol RS-232 and RS-422 / 485 serial device server that is designed to connect RS-232, RS-422 and RS-485 serial devices including…
Model# MSD-SRP2XM-TBPRO
$197.95In stock
The MSD-SRP2XM-PRO is a multi-protocol RS-232 / 422 / 485 3-in-1 serial device server that is designed to connect RS-232, RS-422 and RS-485 serial devices…
Model# MSD-SRP2XM-PRO
$164.95In stock
You can now easily attach 4 computers to 1 DB9 rs232 port. This device automatically shares your DB9 RS232 serial port among four systems, data/jobs…
Model# CG-4URS232A
$76.95In stock
You can now easily attach 4 computers to 1 DB9 rs232 port. This device manually shares your DB9 RS232 serial port among four systems, toggle…
Model# CG-4URS232M
$49.95In stock
You can now easily attach 2 computers to 1 DB9 rs232 port. This device automatically shares your DB9 RS232 serial port among two systems, data/jobs…
Model# CG-2URS232A
$60.95In stock
You can now easily attach 2 computers to 1 DB9 rs232 port. This device manually shares your DB9 RS232 serial port among two systems, toggle…
Model# CG-2URS232M
$38.95In stock
USB C to Serial RS232 for Windows COM Port Synchronize your PDA, Digital Camera, Cell Phone or other device currently using a serial port with…
Model# USBG-232-C
$25.95Not in stock - Backorder allowed
Out of stock
USB Console Cable for Network Consoles A combination of two cables make up this USB to Serial RJ45 console cable giving network engineers, technicians, and…
Model# URJ4856FT
$27.95Out of Stock
Out of stock
Windows 10 Optically Isolated PCIe to RS422/485 Card This PCIe Add on Card extends your systems RS422 or RS485 serial device connections by 8! Using…
Model# CG-8PCIei-SI
$329.95Out of Stock
Windows 10 compatible PCIe to RS422/485 Card This PCIe Add on Card extends your systems RS422 or RS485 serial device connections by 8! Using this…
Model# CG-8PCIe-I
$219.95Not in stock - Backorder allowed
Sale!
RS232 PCIe module Box A uniquely designed RS232 PCI combination module that supports RS232/422/485 serial signal through a PCI to DB44 cable connection. With DIP…
Model# PCIEMODBOX232
$230.95In stock
RS232 PCI expansion module Uniquely designed, this RS232 PCI combination module supports RS232/422/485 serial signal through a PCI to DB44 cable connection. With DIP switch…
Model# PCIMODBOX232
$241.95In stock
RS485 Serial Adapter The CG-RS1S PCMCIA card is designed to provide an additional Single Port RS-422 or RS-485 serial connection for your PC, workstation, thin client, or…
Model# CG-RS1S
$109.95In stock
Out of stock
PCI Express Card - PCI to RS485 Low profile form factor PCI Express RS422/RS485 card defining High Performance 250Mbytes/sec to 4GBytes/sec point-to-point Serial Bus. Supports…
Model# SG-PCIE1S422485
$82.95Out of Stock
Out of stock
PCI Express Card - 2 Port RS422 - RS485 The 2 Port PCI RS422 /485 Express card is designed for PC, workstation, thin client, or…
Model# SG-PCIE2S422485
$87.95Out of Stock
Out of stock
PCI Express Card - RS422 Serial Applications The SG-PCIE4S422485OCTIS 4 Port RS422 Rs485 PCI Express designed to keep your serial applications electrically safe from damage.…
Model# SG-PCIE4S422485OCTIS
$329.95Out of Stock
PCI Express Adapter The SG-PCIE8SRS422485MODIS Isolated 8 Port PCI Express Module provides instant RS232, RS422, and RS485 serial port expansion via the PCI Express bus to…
Model# SG-PCIE8SRS422485MODIS
$659.95In stock
Out of stock
PCI RS232 - RS485 - RS422 Terminal Block The SG-PCIE8SRS422485MOD 8-port RS232 /422 /485 to PCI Express Module Box provides a highly scalable serial interface that…
Model# SG-PCIE8SRS422485MOD
$412.95Out of Stock
PCI Express Card - 2 Port Surge Protection The SG-PCI2S422485OCTIS 2 Port PCI RS422 RS485 card with Breakout Cable supports low profile form factor and is designed to work with…
Model# SG-PCI2S422485OCTIS
$98.95In stock
RS-485 Half Duplex Serial Adapter The USB-8COMi-M allows you to add 8 USB to RS-422 or RS-485 serial ports by connecting to a host USB port. Constructed from…
Model# USB-8COMi-M
$307.95In stock
A Serial Adapter also referred to as a serial converter or RS232 adapter is a small device that converts serial data signals into various other formats that are more widely accepted in modern technology. Serial signals are often found in modern industrial devices and older personal hardware such as PCs, printers, and scanners. The most common serial adapters are RS232 to USB Adapters which Coolgear makes many variations of. This sort of adapter comes in USB-A, USB-B, and USB-C, from 1 port to many ports. If you need to utilize your serial devices on machines that don't have serial ports, we have the serial adapter for you.