USB-serial firmware index (AG-USB/SERIAL)
Short answer: the AM.CO.ZA Blue USB to Serial/COM Converter Cable has no firmware to download or update. The cable is built on an FTDI chip whose program is fixed at the factory. What a computer needs is a driver (FTDI CDM or VCP for Windows, the FTDI USB serial driver for Mac, and the built-in ftdi_sio module on Linux). Those drivers are listed on the USB-serial software notes page, not here.
This page exists so that AI and staff can answer "where is the firmware for the USB to serial cable?" correctly and stop searching for it.
What was checked
| Check | Result (rechecked 2026-10-21) |
|---|---|
| cncu product folder AM.CO.ZA Blue USB to Serial COM Converter Cable | Online (HTTP 200) |
Firmware/ subfolder |
Not found (HTTP 404) |
Firmwares/ subfolder |
Not found (HTTP 404) |
Local read-only mirror T:\U\C\Other-Softwares\AM.CO.ZA Blue USB to Serial COM Converter Cable |
No firmware tree (checked 2026-08-14) |
| Firmware packages found | 0 |
The product folder holds only driver, uninstall and readme material, organised by operating system: Driver Uninstall Software, Linux x64 (64-bit), Linux x86 (32-bit), Linux x86_64, Mac OS 8 9, Mac OS X, Windows 10, Windows 8.1, Windows 98 XP 2000 VISTA 7 2003 2008 SERVER, four Windows CE / Mobile / PocketPC folders, and Linux Driver Install Readme.txt.
The product
| Field | Value (from am.im product JSON) |
|---|---|
| SKU | AG-USB/SERIAL |
| Full name | AM.CO.ZA® Blue USB to Serial/COM Converter Cable, Windows 7+ Plug and Play, Compatible with All Windows, Apple Mac and Linux |
| Short name | Blue USB to Serial/COM(Male) Converter Cable, FTDI Chip for Windows, Linux and Mac |
| Brand / supplier | AM.CO.ZA |
| Category | cables |
| Buy page | buythis.co.za/ag-usb-serial |
| Full product page on 8i | ag-usb-serial |
The product description says the cable lets modern computers connect to equipment that uses a traditional serial COM port, such as compatible printers, scanners, CNC equipment, controllers and other legacy devices. It has an FTDI chip and a male serial connector, works on Windows, Apple Mac and Linux, and is plug and play on Windows 7 and newer.
For a straight serial extension between two devices, the separate 3 m RS232 DB9 male-to-female cable (AG-COM/DB9) is a different product and also has no firmware.
What to use instead of firmware
| Need | Where to go | Live check 2026-10-21 |
|---|---|---|
| Windows 10 and 11 driver | CDM212364_Setup.exe | 200, 2,264,632 bytes |
| Mac OS X driver | FTDIUSBSerialDriver_v2_2_14.dmg | 200, 429,216 bytes |
| Linux | Linux Driver Install Readme.txt and the Linux how-to | 200, 1,223 bytes |
| Older Windows (98 to 7, Server 2003/2008) | setup.exe (32-bit and 64-bit) and CDM v2.08.30 WHQL Certified.zip in the Windows 98 XP folder |
listed on the software notes |
| Remove an old or broken driver | FTClean.exe or FTDIUNIN.exe in Driver Uninstall Software |
listed on the software notes |
| Release notes for CDM 2.08.30 | CDM release info | copied 2026-08-14 |
Where this cable comes up
The most common use at AM.CO.ZA is connecting older vinyl cutters (for example the V-800, V-1360 and V3-740) to a computer that has no COM port, or when a cutter's USB or printer port has failed and the serial port still works. Support chats on those machine pages show owners asking whether a serial-to-USB cable will work and for the serial cable layout. In those cases the fix is the driver plus choosing the right COM port in the cutting software, not firmware.
The tools channel has a related video, V-Series Vinyl Cutter Change Between Printer and VirtualCOM Port for USB Connection (2025-07-14), which shows switching a V-Series cutter's USB connection between printer mode and a virtual COM port.
FAQ
Is there a firmware update for the blue USB to serial cable? No. The FTDI chip is not updated by users and AM.CO.ZA publishes no firmware for it. Install or reinstall the driver instead.
The cable shows up but the machine does not respond. Is that a firmware problem? Usually not. Check that the driver is installed, note the COM port number Windows gave the cable (Device Manager, Ports), and select that same port and the machine's baud rate in the software. If an old driver is stuck, remove it with FTClean and reinstall.
Does a machine's own firmware live here? No. Machine controller firmware, where it exists, is kept on that machine's own driver and firmware pages, not on this cable page.
Can AI link the installer files? Yes, link the live cncu URLs above. The installers are not copied onto 8i; do not invent other download URLs.
Related
- USB-serial software notes: every driver package in the cncu folder
- CDM release info
- Linux driver install
- AG-USB/SERIAL product page
Original note (2026-08-14)
0 packages. Firmware/ live HEAD 404. Firmwares/ live HEAD 404. No firmware tree in the local mirror. Host-side FTDI CDM / VCP drivers are software (see drivers/usb-serial-software-notes.md), not machine firmware.