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⚡ Upgrade your legacy gear game with Gearmo’s 4-port USB-C serial adapter — because multitasking never looked this sleek.
The Gearmo 4 Port RS-232 to USB Type-C Adapter is a professional-grade serial adapter featuring an FTDI chipset, 5ft cable length, and robust ESD protection. It supports full RS-232 handshaking and is compatible with Windows, macOS, and Linux. Designed for seamless multi-device connectivity, it offers plug-and-play installation with dual-color LED indicators for easy status monitoring. Ideal for IT managers and engineers needing reliable, simultaneous access to multiple legacy serial devices.











| ASIN | B08SR1DYXR |
| Best Sellers Rank | #367 in Serial Adapters |
| Brand | Gearmo |
| Color | Black |
| Compatible Devices | Devices with DB9 female serial connectors such as GPS, printers, modems, CNC machines, PLCs, and other legacy serial equipment Compatible Devices Devices with DB9 female serial connectors such as GPS, printers, modems, CNC machines, PLCs, and other legacy serial equipment See more |
| Connector Type | USB Type C, Serial DB9 Male w/ Screws |
| Customer Reviews | 4.8 out of 5 stars 5 Reviews |
| Manufacturer | Gearmo |
| Mfr Part Number | GM-FTDI4XC-LED |
| Model Number | GM-FTDI4XC-LED |
| Number of Items | 1 |
| Number of Ports | 4 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Specific Uses For Product | Connecting multiple legacy serial devices to modern USB host systems |
| UPC | 045079163034 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year |
| Warranty Type | Limited |
L**O
multitasking serial console
I purchased a dozen of these for work. Our new laptops are USB-C only, so we needed something new. Because we typically provision racks that have at least 3 switches in them, these multi-port cables are a real time saver. Switches can be updated and configured in parallel rather than 1 at a time. The cable has a good length and we add 10ft CAT6 to each leg so it can easily reach from either side of the rack. It is easy to use. The ports are automatically detected in TerTerm, PuTTY, or whatever else you use.
D**S
Great if you need more than one RS-232 connection
This shows up as 4 individual serial ports when plugged into a single USB slot. I use it for a live-streaming control system where I have several serial-controlled switchers that I need to access.
Trustpilot
3 weeks ago
3 days ago