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USB 2.0 to RS232 DB9 adapter cable with thumbscrews

Tera Grand

Tera Grand USB 2.0 to RS232 DB9 6' Adapter Cable

SKU CH-HFRK-9RNVP

Connects USB 2.0 ports to RS232 DB9 serial devices using an FTDI chipset with thumbscrews for secure attachment

  • Connects legacy serial devices via USB 2.0
  • FTDI chipset ensures broad driver compatibility
  • Works with Windows 98 through Windows 10
  • Supports Linux 2.4.0+ and macOS
  • 6-foot cable with thumbscrews for secure fit

USB 2.0 to RS232 DB9 Adapter Cable

This adapter cable converts a USB 2.0 port into a standard RS232 DB9 serial connection. It is built with an FTDI chipset and includes male thumbscrews for a secure fit. The six-foot cable suits technicians and hobbyists who need to link legacy serial equipment to modern computers lacking native COM ports.

USB 2.0 bandwidth and RS232 signalling limits

The USB 2.0 interface caps the maximum throughput, while the RS232 standard defines the electrical signalling at 232 levels. Supported data signals include TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI and GND with full modem control. The adapter installs as a standard Windows COM port across the listed operating systems.

Driver installation and common issues

Windows 10, 8, 7, Vista, XP, 2000, 98, Linux 2.4.0+, Mac OS 8+, OpenBSD 2.9+ and FreeBSD 4.7+ are supported; current drivers are available from the manufacturer's website. Installation typically adds a virtual COM port, but missing or outdated drivers often cause the device to go unrecognised. Loose thumbscrews can also interrupt the serial link.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $25.99
Cheaper than about 64% of the 3,838 comparable items (median $41.99).

Specifications

No published specifications for this item yet.

Questions about this item

Which cable length should I pick for my RS-232 device?

The product is a single 6-foot adapter cable; no other lengths are offered.

What does the USB 2.0 rating mean for actual serial throughput?

USB 2.0 sets the bus ceiling, but real RS-232 speed is limited by the FTDI chipset and the connected device's own baud-rate capability.

Does the DB9 connector follow the standard RS-232 pinout?

Yes, the DB9 male end carries the full RS-232 signal set — TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI and GND — with thumbscrews for a secure fit.

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