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Add an RS-232 serial port to your laptop or desktop computer through USB; features COM port retention
USB to Serial
USB to RS232
USB to DB9
USB to Serial Adapter
USB to Serial Port
USB to RS232 Serial DB9 Adapter Cable with COM Retention
Sponsored
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Connector Types: 1 - DB9 Male Connector Types: 1 - USB A Female
Specifications
Maximum Data Transfer Rate: 920 Kbits/Sec Hardware Requirement: A PC with an available USB 1.1 port Operating System: Windows 98 SE, ME, 2000, XP, Vista
Features
Features
COM port settings are retained for serial devices plugged into different USB ports Draws power from USB port. No external power needed Easy to setup and install Lightweight and portable cable is excellent solution for laptop or mobile application Provides dual buffers for upstream and downstream data transfer Supports automatic handshake mode Supports data transfer rates of up to 920kpbs Supports remote wake up and power management control
Additional Information
First Listed on Newegg
January 19, 2026
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Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.