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 | 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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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
$34.29In stock
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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
$29.49In stock
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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
$33.99In stock
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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
Price range: $3.29 through $4.29In stock
Price range: $3.29 through $4.29
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Durable DB9 Serial Cable for Reliable ConnectionsConnect serial devices with confidence using this fully shielded DB9 Female to DB25 Male Null Modem cable. Designed with…
Model# CM-180501BSTK
$4.79In stock
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Durable DB9 Serial Cable for Reliable ConnectionsConnect serial devices with confidence using this fully shielded DB9 Female to Female Null Modem cable. Designed with molded…
Model# CM-180503BSTK
$5.36In stock
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Durable DB9 Serial Cable for Reliable ConnectionsConnect serial devices with confidence using this fully shielded DB9 Male to Female Null Modem cable. Designed with molded…
Model# CM-180508BSTK
$4.29In stock
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Durable DB9 Serial Cable for Reliable ConnectionsConnect serial devices with confidence using this fully shielded DB9 Female to Female cable. Designed with straight-through wiring and…
Model# CM-180231BSTK
$4.35In stock
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Durable DB9 Serial Cable for Reliable ConnectionsConnect serial devices with confidence using this fully shielded DB9 Male to Female cable. Designed with straight-through wiring and…
Model# CM-180215BSTK
$4.62In stock
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Durable DB9 Serial Cable for Reliable ConnectionsConnect serial devices with confidence using this fully shielded DB9 Male to Male cable. Designed with straight-through wiring and…
Model# CM-180211BSTK
$3.70In stock
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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
$27.99Out 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.