StarTech.com ICUSB232SM3 1-Port USB to Serial Cable - 8cm (3")
Features
The ICUSB232SM3 3ft USB to Serial Adapter Cable lets you connect DB9 RS232 serial devices to your Mac® or PC laptop or desktop computer through an available USB port, as though the computer offered an onboard DB9M connector. Unlike typical USB to serial converter cables where the conversion takes place at the DB9 end, the StarTech.com ICUSB232SM3 features a converter chip on the USB end. Converting at the USB source overcomes the 15ft. technical limit of USB cables, allowing for a much greater serial DB-9 extension cable (50ft.+ is possible depending on the application) if necessary. Simple to install and use, this USB to Serial adapter is a cost-effective solution that bridges the compatibility gap between modern computers and legacy serial peripherals. Backed by a StarTech.com lifetime warranty and free lifetime technical support.
The StarTech.com Advantage
- The converter chip on the USB end of the cable allows extension of the DB9 serial over much greater distances than USB extension
- Drawing power from the USB bus saves the hassle of carrying an external power adapter for this add-on serial port
- Extensive list of compatible operating systems makes this device perfect for almost any RS232 application
Specifications
Technical Specifications
| Bus Type | USB 2.0 |
|---|---|
| Chipset ID | Prolific - PL2303HXD |
| Industry Standards | RS232, USB 1.1/2.0 |
| Interface | Serial |
| Port Style | Cable Adapters |
| Ports | 1 |
| FIFO | 192 Bytes |
| Max Baud Rate | 921.6 Kbps |
| Serial Protocol | RS-232 |
| Connector Type(s) | 1 - DB-9 (9 pin, D-Sub) Male1 - USB Type-A (4 pin) USB 2.0 Male |
| OS Compatibility | Windows® CE 4.2, 5.2, 98SE, ME, 2000, XP, Vista, 7, 8, 8.1, 10Windows Server® 2003, 2008 R2, 2012, 2016Mac OS® 10.6 to 10.12Linux 2.4.x to 4.4.x LTS Versions only |
| Humidity | 0~65% RH |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -20°C to 80°C (-4°F to 176°F) |
| Cable Length | 3 ft [0.9 m] |
| Enclosure Type | Plastic |
| Included in Package | 1 - USB to Serial Converter2 - Cable Nuts |
| Brand | StarTech.com |
|---|---|
| Product Type | PC Peripherals > Cables > USB Cables |
| Weight | 0.027 kg |
| Warranty |
|---|
Note:
Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.
Shipping Information
- Free NZ-wide shipping on orders over $299
- Standard delivery 2–5 business days
- Rural delivery may take an additional 1–2 days
- Same-day dispatch for orders placed before 2pm (weekdays)
Returns Policy
- 7-day returns on unused items in original packaging
- Faulty or damaged products covered under warranty
- Contact our support team to initiate a return


