USB 2.0 to RS232 DB9 Serial Adapter CH340

KEY FEATURES

🔹 6 Months Warranty
🔹 CH340 chipset
🔹 Full RS-232 signal support
🔹 LED indicator shows
🔹 32-inch extension cable    
🔹 Works on Windows
🔹 Also supports Mac 

PRODUCT DESCRIPTION

Your USB Port. Every RS232 Serial Device. CH340 Chipset. LED Indicator. Ready Instantly

A modem, ISDN terminal adapter, barcode scanner, label printer, or PDA with a DB9 RS232 serial port and a modern laptop or desktop with only USB ports and no serial connection available. The gap between legacy serial equipment and modern USB-only computers is one that millions of Indian IT professionals, engineers, retail operators, and industrial users face daily. The GRUNX USB 2.0 to RS232 Serial DB9 Adapter bridges it instantly a CH340 chipset-powered USB to RS232 converter that installs as a standard Windows COM port, supports all full RS-232 modem control signals, includes a 32-inch USB extension cable, features a live LED connection indicator, and runs across the widest OS compatibility range available Windows 11 back to Windows 98, Mac OS, Linux, OpenBSD, and FreeBSD without any complicated configuration or hardware modification.

CH340 Chipset Reliable RS232 Serial Conversion

The adapter is built around the CH340 chipset a trusted, widely supported USB to serial bridge IC that delivers stable, consistent RS232 serial communication across all supported operating systems without driver conflicts, port instability, or intermittent disconnections. Installed as a standard Windows COM port for seamless integration into existing serial device workflows, POS software setups, and industrial control applications without reconfiguring connected equipment or software.

Full RS-232 Signal Support Complete Modem Control

The adapter supports the complete set of RS-232 data and modem control signals TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, and GND ensuring full bidirectional communication with every RS232 serial device rather than the partial signal support that cheaper adapters provide. For Indian professionals using modems, ISDN terminal adapters, barcode scanners, label printers, PDAs, and industrial serial equipment that rely on full modem handshaking signals, complete RS-232 signal support is the difference between an adapter that works and one that does not.

LED Indicator Instant Connection Status Confirmation

The built-in LED indicator illuminates the moment the adapter is plugged in and the serial connection is active providing instant visual confirmation that the USB to RS232 bridge is live and communicating without needing to check device manager or software to verify the connection status. Essential for busy Indian IT environments and retail setups where quick visual confirmation of device connectivity saves troubleshooting time.

32-Inch USB Extension Cable Included Reach and Flexibility Built In

The package includes a 32-inch USB male to female extension cable providing the reach to position the serial adapter at the device end while the USB connection extends comfortably to any nearby USB port without forcing awkward cable routing or putting mechanical stress on either connector. A practical inclusion that makes the adapter immediately useful in real-world desk and workstation setups.

Widest OS Compatibility Windows 11 to 98, Mac, Linux, OpenBSD, FreeBSD

Compatible with Windows 11, 10, 8, 7, Vista, 2000, XP, 98, and SE Apple Mac OS 8 and higher Linux 2.4.0 and later OpenBSD 2.9 and later and FreeBSD 4.7 and later. The broadest OS compatibility range available on any USB to RS232 adapter, covering every operating system environment encountered across Indian IT, industrial, retail, and home setups. Also supports remote wake-up and USB power management for efficient system integration.

The USB to RS232 Adapter That Connects Every Serial Device to Every Modern Computer

CH340 chipset. Full RS-232 signals. LED indicator. 32-inch extension cable included. Windows 11 to 98. Mac. Linux. Free shipping.

SPECIFICATIONS

• Chipset: CH340
• Signals Supported: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
• Included: 32-inch USB extension cable
• Indicator: Live LED connection status
• Compatibility: Windows 11–98/SE, Mac OS 8+, Linux 2.4+, OpenBSD 2.9+, FreeBSD 4.7+

FREQUENTLY ASKED QUESTIONS (FAQ)