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Multi-Port USB Chargers
Integration-Ready Charging PCBAs
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
$27.29In stock
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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
$29.29In stock
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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
$29.29In stock
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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
$103.29Not in stock - Backorder allowed
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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
$52.99In stock
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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
$91.29In stock
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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
$70.49In stock
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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
$114.99In stock
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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
$422.99In stock
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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
$79.99In stock
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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
$209.49In stock
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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
$116.29In stock
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The NCAN-2 is designed to make a fast, simple way to communicate with CAN bus devices. The NCAN-2 adds two industrial CAN bus channel to…
Model# NCAN-2
$171.49In stock
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RS-232 | 256 Bytes Receive | 128 Bytes Transmit Superior Build Quality: Housed in a rugged steel chassis with built in mountable flanges, the serial adapter…
Model# USB-2COM-SI-M
$157.99In stock
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The NCAN-1 is designed to make a fast, simple way to communicate with CAN bus devices. The NCAN-1 adds one industrial CAN bus channel to…
Model# NCAN-1
$127.49Out of Stock
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The MSD-SRF4XV2 provides seamless connectivity for RS-232, RS-422, and RS-485 serial devices over Ethernet, making it ideal for integrating PLCs, meters, sensors, and other legacy…
Model# MSD-SRF4XV2
$249.95Not in stock - Backorder allowed
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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.