Delock USB-A to RS-232 DB9 adapter with 9-LED diagnostics, external form factor, 24-month warranty. Compact USB-to-serial converter for legacy industrial and measurement devices.
Delock USB-A to Serial DB9 RS-232 Adapter – Compact USB-to-Serial Converter with LED Diagnostics
The Delock USB-A to Serial DB9 RS-232 Adapter (Model 90497) bridges modern USB-A ports with legacy RS-232 serial devices. It converts USB signals to RS-232 voltage levels, enabling communication with industrial equipment, measurement instruments, and older peripherals that still rely on the DB9 serial standard.
USB-A to RS-232 DB9 conversion extends the life of legacy serial devices in modern USB-only environments
9 LEDs provide real-time visual feedback on TX, RX, DTR, DSR, RTS, CTS, GND, VCC, and signal activity
External form factor with compact housing fits easily on any desk or inside a device enclosure
24 months manufacturer warranty ensures long-term reliability for professional and hobby use
Das zeichnet den Delock Serial-Adapter 90497 aus
Unlike many basic USB-to-serial adapters, this model includes a full 9-LED diagnostic panel that displays every active control line and signal state. The external design avoids internal card-slot constraints, making it compatible with laptops, mini-PCs, and embedded systems without requiring a free PCIe or PCI slot.
Ideal für...
Engineers, technicians, and hobbyists who need to interface USB-A computers with RS-232 serial equipment in lab, industrial, or workshop settings. The adapter is particularly suited for users working with legacy devices that lack USB connectivity and require a reliable, plug-and-play serial bridge.
Anwendung von Delock USB-A to Serial DB9 RS-232 Adapter
Connect the USB-A end to a computer or powered USB hub
Attach the DB9 RS-232 cable to the target serial device
The 9 LEDs immediately indicate signal presence and line activity
Configure the serial port parameters (baud rate, parity, stop bits) in the operating system or application software
Delock is a German manufacturer specializing in connectivity adapters, cables, and computer peripherals. The brand focuses on bridging legacy and modern interfaces, with a strong presence in the USB-to-serial and industrial connector market. Delock products are widely used in professional, educational, and hobbyist environments across Europe.
It converts USB-A signals to RS-232 serial communication, allowing modern computers with USB-A ports to connect to legacy devices that use DB9 serial interfaces, such as industrial equipment, measurement instruments, and older peripherals.
Any device with an RS-232 DB9 serial port that requires USB connectivity. The adapter is commonly used with industrial controllers, measurement devices, GPS receivers, and legacy equipment that lacks native USB support.
USB-A connector on the computer side, RS-232 DB9 connector on the device side, 1 port, external form factor, and a 9-LED diagnostic panel showing TX, RX, DTR, DSR, RTS, CTS, GND, VCC, and signal activity.
1x Delock USB-A to Serial DB9 RS-232 Adapter (Model 90497). A serial cable or additional connectors may be required depending on the target device.
Delock provides a 24-month manufacturer warranty, covering material and manufacturing defects for reliable long-term use in professional and hobby applications.
Subscribe to the newsletter
New arrivals, promotions and exclusive offers — straight to your inbox.
Please complete your information below to login.
Sign In
Create New Account