TRENDnet's USB to Serial Converter, model TU-S9, allows users to conveniently connect an RS-232 serial device, such as a modem or printer, to a USB port on your desktop PC or laptop. The USB to serial adapter supports both Windows® and Mac® operating systems. Integrated cables provide setup flexibility and accommodates most installation scenarios.
The USB to serial adapter supports USB 1.1 and it is compatible with USB 2.0 and USB 3.0 ports.
RS-232 Serial Connector
Connect RS-232 serial devices, such as modems or printers, using the widely supported USB standard found in most laptops and desktops today.
Integrated and flexible 540mm (21 in.) USB cable accommodates most installation scenarios.
Simple installation in seconds
Integrated and flexible 540mm (21 in.) USB cable accommodates most installation scenarios
The USB to serial adapter is compatible with Windows® and Mac® operating systems
1 x USB Type A
1 x RS-232 (9-pin) male
Cable length: 64cm (25 in.)
Up to 6Mbps
Windows®11, 10, 8.1, 8, 7
Mac OS® 10.11, 10.10, 10.9, 10.8, 10.7, 10.6
0° – 40° C (32° – 104° F)
Max. 85% non-condensing
RS-232 connector: 65 x 35 x 10 mm (2.55 x 1.4 x 0.4 in.)
Total cable length: 64cm (25 in.)
50g (1.7 oz.)
Quick Installation Guide
All references to speed are for comparison purposes only. Product specifications, size, and shape are subject to change without notice, and actual product appearance may differ from that depicted herein.