Features:
USB Type-C PD Chargers
USB Type-A Chargers
Multi-Port USB Chargers
Integration-Ready Charging PCBAs
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
$209.99In stock
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1 Port CAN Bus For Windows 11 If you're an engineer and involved in vehicle design, industrial automation, or other micro-chip related industry, we have…
Model# CG-1PRTCANB
$85.99In stock
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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
$116.29In stock
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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
$211.99In stock
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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
$146.49In stock
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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
$295.29In stock
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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
$197.99In stock
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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
$409.49In stock
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The 2-Port Industrial Grade RS-232 / RS-422 / RS-485 Serial to Ethernet Device Server connects your serial equipment to IP networks with ease. PoE-powered and…
Model# MSD-SRP2XM-PRO
$217.49In stock
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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
$333.99In stock
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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
$208.99In stock
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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
$139.99Out of Stock
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FAQ: Common USB to Serial Adapter Questions
Q: What is COM Port Retention and why do I need it?
A: COM Port Retention ensures that your assigned COM port number remains the same every time you plug in the adapter or reboot your PC. This prevents software communication errors and eliminates the need to manually reconfigure your application settings whenever hardware is moved.
Q: Can I use these adapters with Windows 11?
A: Yes, all Coolgear Serial adapters use modern FTDI or Silabs chipsets with WHQL-certified drivers for full Windows 11, Mac, and Linux support.
Q: What is the difference between an isolated and non-isolated serial adapter?
A: Isolated adapters use optical barriers to physically separate the electrical signals. This protects your computer from 2,500V surges and ground loops common in factory environments.
Q: Do these adapters require an external power supply?
A: Most of our single and dual-port models are USB bus-powered. High-density rackmount models (8-port+) feature integrated or external power supplies for maximum signal integrity.