








🔗 Unlock vintage tech with modern ease — stay connected, stay ahead!
The USB to DB9 RS232 Cable is a compact, plug-and-play adapter that converts USB 2.0 ports into 9-pin serial connections, enabling seamless communication with legacy devices. Supporting full-speed 12 Mbps transfer and broad OS compatibility, it requires no external power or drivers on most modern systems, making it an essential tool for professionals bridging old and new technology.


















| ASIN | B0B3937767 |
| Best Sellers Rank | #42 in Serial Adapters |
| Customer Reviews | 4.3 4.3 out of 5 stars (115) |
| Date First Available | June 6, 2022 |
| Item Weight | 1.69 ounces |
| Item model number | HL-340 |
| Manufacturer | HL-340 USB to serial cable (COM) USB-RS232 USB nine-pin serial cable supports win7-64 bit |
| Package Dimensions | 8.27 x 5.43 x 1.42 inches |
S**C
Perfectly work.
Works perfectly with my Win-11 & Win-10 laptop without any needs for driver.
S**E
Is great price works well
Worked perfectly to add a serial com port to a newer laptop.
A**R
Excellent
Excellent
A**Z
Dónde está el cd de instalación del cable no llegó
U**N
It doesn't work.
It requires Chinese Drivers. It uses entirely different chip than most serial comms. CH341 chip. It's on github. However, even I installed the driver, it still doesn't work. It does detect that it is being used, however it can't communicate properly. Something is faulty in the drivers. Waste of time and money. Get something else.
L**N
Works well
Worked perfectly. Driver's installed automatically on windows 11.
A**R
Plug and play
Had an older cable and Windows told me the chip was out of date so I bought this one. It worked perfectly.
M**N
Works with Windows 11
Works perfectly!
ا**ً
مش شغاله أصلا علي اللاب توب
A**.
خامة تعبانه بس بتكفي الغرض المطلوب
Trustpilot
Hace 1 mes
Hace 4 días