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Serial Adapters
  1. Home
  2. Electronics
  3. Computers & Accessories
  4. Computer Accessories & Peripherals
  5. Computer Cable Adapters
  6. Serial Adapters
  7. Gearmo 4 Port…
Gearmo

Gearmo 4 Port RS-232 to USB Adapter 1.5m (5ft) | FTDI Chipset, ESD Protection, 4x DB9 Connectors

4.9
(13 Ratings)
Gearmo 4 Port RS-232 to USB Adapter 1.5m (5ft) | FTDI Chipset, ESD Protection, 4x DB9 Connectors - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹8,110₹11,740

You save ₹3,630 (31%)

31% off the seller list price

Qty
Gearmo 4 Port RS-232 to USB Adapter 1.5m (5ft) | FTDI Chipset, ESD Protection, 4x DB9 Connectors — Type A
Type A
₹8,110
₹11,740
In Stock

Doorstep delivery by 24 Oct - 26 Oct from USA

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Unlock Legacy Hardware Connectivity

About this item

Gearmo's 4 Port RS-232 to USB Adapter (1.5m/5ft) is engineered for reliable connectivity between legacy serial devices and modern computers. Featuring a high-performance FTDI chipset and robust ESD protection up to 15KV, this adapter ensures stable data transfers for industrial, lab, and point-of-sale applications. Its plug-and-play installation automatically configures COM ports, making it easy to integrate with systems running Windows 11, macOS, or Linux.

The adapter supports baud rates up to 921.6kbps and includes RXD/TXD status LEDs for real-time connection monitoring. Its dual hardware data buffer handles upstream and downstream data efficiently. This USB 2.0 to Serial converter is ideal for connecting GPS devices, PDAs, modems, printers, and scanners, offering a dependable solution for extending the life of serial equipment in India.

Connect your essential legacy hardware without voltage concerns, as this adapter is USB-powered. All customs duties and GST are included in the price, with tracked delivery via ExpressBox to your pincode. For technical integration, CAD files and datasheets are available upon request.

Key Features

  • QUAD PORT RS232 SERIAL TO USB ADAPTER — 5ft Total Length: Easily connect multiple DB9 serial devices to modern USB-equipped computers. Uses include industrial, lab, and point-of-sale applications.
  • INDUSTRIAL READY — Equipped with 15kV ESD isolation, and baud rates up to 921.600bps. Transmit (TX) and Receive (RX) LED indicators for each DB9 connection offers quick and easy testing of RS-232 host-to-device connections in critical operations.
  • EASY INSTALLATION — Plug-and-play USB interface with COM port retention for consistent, reliable serial connections. No external power supply required - just connect and go.
  • WIDE COMPATIBILITY — Built with an FTDI Chipset that supports an automatic handshake. Works seamlessly with Windows 7, 8, 10, 11, Linux, and macOS 10.X.
  • WHY Gearmo? — Your trusted partner based in the USA, providing advanced engineering and reliable products to handle the most demanding industries for over 10 years.
  • ENGINEERING SUPPORT — Need specs? Contact us for CAD files, mechanical drawings, or datasheets to support your integration or project needs.

Why choose this product

Engineered for Demanding Environments

Gearmo's 4 Port RS-232 to USB Adapter is built for reliability in critical applications. Its FTDI chipset ensures robust performance, while 15kV ESD protection safeguards against electrical damage. This adapter is designed for industrial settings, laboratories, and point-of-sale systems where consistent data flow is paramount. Unlike basic adapters, it offers dedicated status LEDs for each port, simplifying diagnostics. Imported directly from authorized US retailers, it guarantees authentic performance for your essential legacy hardware.

Ideal for Legacy Hardware Integration

This adapter is perfect for Indian businesses and professionals needing to connect older equipment like POS terminals, industrial controllers, or lab instruments that rely on RS-232 ports to modern computers lacking them. It supports high baud rates and offers automatic handshake, ensuring compatibility with a wide range of devices. If you require multiple serial ports and robust, stable connections for your existing setup, this adapter is a superior choice. Users with sensitive equipment or those needing precise data monitoring will benefit from the ESD protection and status LEDs.

How to use

  • Install Drivers — Insert the included driver disk into your computer's CD/DVD drive or download the latest drivers from the manufacturer's website. Follow the on-screen prompts to install the FTDI chipset drivers for your operating system (Windows, macOS, or Linux).
  • Connect the Adapter — Plug the USB Type-A end of the Gearmo adapter into an available USB port on your computer. Then, connect your DB9 serial devices (e.g., printers, modems, PLCs) to the four RS-232 female ports on the adapter.
  • Verify COM Port Assignment — Once connected, your computer should recognize the adapter and assign new COM port numbers. Check your operating system's Device Manager (Windows) or equivalent utility to confirm the adapter and its assigned COM ports are active and ready for use.
  • Configure Serial Devices — Open your serial communication software or device application. Configure the settings (e.g., baud rate, data bits, parity) to match the requirements of your connected serial device and the adapter's capabilities (up to 921.6kbps).

Example scenarios

Typical situations where Gearmo 4 Port RS-232 to USB Adapter 1.5m (5ft) | FTDI Chipset helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

An Indian manufacturing plant needs to connect multiple legacy PLCs to a central monitoring system via USB.

How this product helps

The Gearmo 4 Port RS-232 adapter allows connecting up to four PLCs simultaneously. Its industrial-grade FTDI chipset and ESD protection ensure reliable data flow in factory environments, crucial for operational efficiency.

2
Scenario 2
Illustrative example
Where it helps

A small business in India uses an older POS system with a serial printer and needs to upgrade their computer.

How this product helps

This adapter lets you connect the existing serial printer to a new laptop or PC via USB. The plug-and-play setup and status LEDs simplify integration, ensuring minimal downtime for your retail operations.

Technical specifications

Setup & usage

Supported Operating SystemsWindows 7, 8, 10, 11; Linux; macOS 10.X
Baud Rate SupportUp to 921.6kbps
Power SourceUSB Powered (No external power supply needed)
InstallationPlug-and-play, Automatic handshake support, COM port retention
Specific UsesConnecting legacy serial devices (printers, modems, GPS, PDAs, PLCs, POS) to USB ports.
Cost per unit1 adapter at ₹8,110 — ₹8,110 per adapter

How we compare

FeatureGearmo 4 PortOthers
Port Count4x DB9 RS-232 portsTypically 1-2 ports; 4-port models are rare and costly
Chipset & ReliabilityFTDI chipset, 15kV ESD protection, status LEDsVaries widely; often unbranded or lower-spec chipsets, less ESD protection
Baud Rate SupportUp to 921.6kbpsOften limited to 115.2kbps or lower
OS CompatibilityWindows 7/8/10/11, Linux, macOS 10.XMay have limited or outdated OS driver support
Cost per unit1 adapter at ₹8,110 — ₹8,110 per adapterBasic 1-port adapters start at ₹1,500-2,500; 4-port models significantly higher

Product details

SKUqtk2162
GTIN0045079162945
BrandGearmo
Model NumberGM-FTDI4X-LED
ColorBlack
MaterialNot specified (likely durable plastic/metal)
Cable Length1.5m (5ft)
Number of Ports4
Connector TypeDB9 RS-232 (Male)
USB Connector TypeUSB Type-A (Male)
Country of OriginNot stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

About Gearmo

Gearmo specializes in reliable connectivity solutions, offering advanced engineering for demanding industries with a focus on robust USB-to-serial adapters and accessories.

Compliance & Legal

No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.

Customer Reviews

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FAQ, See What Others Asked

How to connect legacy serial devices to a modern Indian computer?
Use the Gearmo 4 Port RS-232 to USB Adapter. It connects your DB9 serial devices to your laptop or PC via a standard USB port. This adapter is imported from the USA and includes all customs duties and GST, ensuring a transparent purchase for Indian buyers. It works with Windows, macOS, and Linux.
Will this USB to serial adapter work on my Windows or Mac laptop in India?
Yes, the Gearmo adapter is designed for broad compatibility. It supports Windows 7, 8, 10, and 11, Linux, and macOS 10.X. Its USB-powered nature means it works directly with your laptop's USB port without needing voltage converters, making it suitable for use anywhere in India.
What is the difference between a straight-through and a null modem serial adapter?
This Gearmo adapter functions as a straight-through connection, typically used to connect a serial device (like a printer or modem) to a computer's serial port. A null modem adapter crosses transmit and receive lines to connect two computers or devices directly. This model is for connecting peripherals to a host.
How do I know if the serial connection is active?
The Gearmo adapter features RXD (Receive Data) and TXD (Transmit Data) status LEDs for each of the four DB9 ports. These indicators provide real-time visual feedback on data activity, allowing you to quickly test and confirm that your serial connections are active and functioning correctly.
What is the baud rate support for this USB to serial adapter?
This adapter supports high baud rates up to 921.6kbps, ensuring efficient data transfer for demanding applications. This speed is crucial for industrial equipment, lab instruments, and high-speed data logging where faster communication is required.
Does this adapter require an external power supply?
No, the Gearmo 4 Port RS-232 to USB Adapter is powered directly through the USB port. This simplifies setup and reduces clutter, making it a convenient plug-and-play solution for any computer with an available USB port.
How to buy an original Gearmo 4 Port RS-232 to USB Adapter in India?
Purchase directly from crowcrowcrow.com to ensure you receive an original, factory-sealed Gearmo adapter sourced from authorized US retailers. All customs duties and GST are included in the price, and delivery is tracked via ExpressBox to your Indian pincode.

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Gearmo 4 Port RS-232 to USB Adapter 1.5m (5ft) | FTDI Chipset, ESD Protection, 4x DB9 Connectors

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Gearmo 4 Port RS-232 to USB Adapter 1.5m (5ft) | FTDI Chipset, ESD Protection, 4x DB9 Connectors

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Gearmo 4 Port RS-232 to USB Adapter 1.5m (5ft) | FTDI Chipset, ESD Protection, 4x DB9 Connectors

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You save ₹5,350 (30%) Extra

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3 items

₹12,710

You save ₹5,350 (30%) Extra

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Spec
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₹8,110
₹11,740
₹2,620
₹3,620
₹1,980
₹2,700
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₹2,890
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Rating
4.90(13)
4.80(900)
4.50(114)
5.00(7)
5.00(2)
5.00(5)
4.60(13)
Brand NameGearmoDSD TECHANMBESTANMBESTANMBESTANMBESTANMBEST
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹8,110₹11,740

You Save ₹3,630

Estimated delivery: Doorstep delivery by 24 Oct - 26 Oct from USA
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You Order
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Doorstep delivery
Delivered to you
You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you

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₹24,330+ (3× the price)
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