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🏆Our Top Pick
01
9.9
Exceptional
(4,170 reviews)
🔥 5 interested
UGREEN USB to RS232 Adapter Serial Cable DB9 Male 9 Pin with PL2303 Chipset RS-232 Converter Cable for Windows 10 8.1 8 7 XP Vista
UGREEN
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Why We Love It
PL2303 chipset delivers rock-solid legacy device connectivity
1-meter length eliminates desk clutter without reaching limitations
Works seamlessly across Windows, Mac, and Linux ecosystems
02
9.6
Exceptional
(4,845 reviews)
Melfi 2Feet USB to Serial RS232 Adapter Cable PL2303 Chipset DB9 (9-Pin) Serial Converter – Compatible with Windows
Melfi
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Why We Love It
2-foot compact design perfect for portable legacy device setups
PL2303 chipset guarantees instant recognition on any system
Stable COM port connection resurrects decades-old equipment instantly
03
9.3
Excellent
(4,274 reviews)
Serial Adapter Cable 1.5 Feet USB to DB9 RS232 Desktop Adapter Cord USB to Serial Cable Adopter for Connecting Digital Cameras
Serial
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Why We Love It
1.5 feet keeps cameras and scanners perfectly positioned nearby
Connects barcode readers, modems, and label writers effortlessly
Blue color coding prevents cable confusion in crowded setups
04
9.1
Excellent
(3,526 reviews)
DTECH USB to TTL Serial 3.3V Adapter Cable TX RX Signal with 4 Pin 0.1 inch Pitch Female Socket PL2303 Prolific Chip for Windows 10 8 7 XP Vista (6ft Black)
DTECH
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Why We Love It
TTL 3.3V signal compatibility unlocks microcontroller projects easily
6ft black cable reaches across workbenches and shelves
PL2303 Prolific chip ensures Windows 10 through XP support
05
8.9
Very Good
(3,538 reviews)
RS232 to RS485 Serial Converter Adapter
RS232
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Why We Love It
Industrial-grade RS232 to RS485 conversion for heavy-duty applications
4-pin terminal block secures connections permanently without slipping
Excellent option for factory floors and equipment upgrades
06
8.7
Very Good
(4,148 reviews)
DSD TECH SH-RS232A USB to RS232 Serial DB9 Adapter Cable with FTDI FT232 Chip for Windows
DSD
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Why We Love It
Reliable FTDI FT232 chip outperforms standard adapters consistently
5.9ft cable reach solves distance challenges in server rooms
Solid choice for professionals trusting FTDI's proven performance
07
8.5
Very Good
(2,561 reviews)
DIGISHUO FT232RL FTDI Mini USB to TTL Serial Converter Adapter Module 3.3V 5.5V FT232R Breakout FT232RL USB to Serial Mini USB to TTL Adapter Board for Arduino (2Pcs Red Module)
DIGISHUO
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Why We Love It
2-piece FT232RL modules double your Arduino project potential
Dual 3.3V and 5.5V support works with any microcontroller
Reliable pick for makers prototyping breakout boards
08
8.4
Good
(3,380 reviews)
WANGCL 3.3V / 5V USB to TTL converter CH340G UART Serial Adapter Module Golden
WANGCL
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Why We Love It
CH340G converter handles both 3.3V and 5V devices seamlessly
Golden finish prevents corrosion in humid workshop conditions
Great entry-level choice for Arduino beginners discovering serial communication
09
8.2
Good
(3,650 reviews)
Bafo USB to Serial DB9 Adapter with Windows 10 Support
Bafo
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Why We Love It
Windows 10 support keeps legacy gear running on modern computers
Bafo's reputation for durability spans countless installations
Smart budget pick without sacrificing connection stability
10
8
Good
(994 reviews)
DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 10
DTECH
DISCOUNTED TODAY
Why We Love It
RS422 and RS485 dual support handles industrial serial protocols
FTDI chip with 1.5-foot cable bridges legacy equipment gaps
Smart choice for automation systems requiring multiple standards