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Connect Your Legacy Serial Devices Reliably
The TRENDnet TU-S9 USB to Serial 9-Pin Converter Cable enables seamless connection of RS-232 serial devices, such as modems or printers, to modern laptops and desktops via a USB port. This cable is designed for broad compatibility, supporting USB 1.1, 2.0, and 3.0 ports with a reliable 6Mbps data rate, making it ideal for various industrial and networking applications. Its integrated, flexible 64cm (25 in.) cable simplifies installation and accommodates most setup scenarios.
Engineered for ease of use, the TU-S9 offers Plug & Play installation, requiring no complex setup. It is compatible with a wide range of operating systems, including Windows 10, 8.1, 8, 7, and Mac OS versions 10.6 through 10.11. The cable is also NDAA compliant, making it suitable for government customers in the U.S. and Canada who require solutions adhering to specific regulatory standards.
This converter cable is backed by TRENDnet's 2-year manufacturer protection and reliable English-speaking tech support. It provides a dependable solution for connecting legacy serial equipment to contemporary USB systems, ensuring data integrity and operational continuity for your devices. All customs duties and GST are included in the listed price, with delivery via ExpressBox tracked shipping.
Reliable Connectivity for Critical Systems
The TRENDnet TU-S9 USB to Serial Converter ensures your essential RS-232 devices can communicate with modern computers. Unlike generic adapters, this cable is built for consistent data transfer, supporting up to 6Mbps. Its NDAA compliance offers peace of mind for government and sensitive installations. For Indian users, this means a dependable bridge to legacy hardware, imported directly and cleared with all duties included, ensuring your critical systems remain operational without the hassle of local sourcing uncertainty.
Who Should Use This vs. Who Should Skip
Ideal for IT professionals, government contractors, and users needing to connect modems, printers, POS systems, or industrial equipment to a USB port. It’s perfect for those requiring a stable, compliant connection for Windows or Mac systems. Skip this if you need a USB-C to Serial adapter; this cable uses a standard USB Type-A connector. Also, if your device requires a specific serial protocol beyond standard RS-232, verify compatibility before purchase.
Typical situations where TRENDnet USB to Serial 9-Pin Converter Cable TU-S9 | 64cm (25 in.) helps — illustrative scenarios, not customer reviews.
An IT technician in Delhi needs to configure an industrial machine with a serial port using a modern laptop.
The TRENDnet TU-S9 USB to Serial cable connects the machine's RS-232 port to the laptop's USB. Its 64cm length is practical for desk setups, and Plug & Play ensures quick setup without complex drivers, saving valuable configuration time.
A small business owner in Mumbai needs to connect an older POS printer to a new computer but lacks a serial port.
This adapter bridges the gap, allowing the POS printer to communicate with the new computer via USB. It supports common Windows OS, ensuring compatibility and reliable data transfer for daily transactions.
| Supported Operating Systems | Windows (10, 8.1, 8, 7), Mac OS (10.6-10.11) |
| Compatible Devices | Modems, Printers, POS systems, PLC controllers, Gateways, Serial Devices |
| Installation | Plug & Play |
| Warranty | 2-Year Manufacturer Protection |
CrowCrowCrow helps you bring this product to India. Any warranty is offered by TRENDnetunder its own policy.
| Feature | TRENDnet USB to | Others |
|---|---|---|
| Connectivity | USB Type-A to RS-232 (9-Pin) Serial | USB Type-A to RS-232 (9-Pin) Serial |
| Data Rate | Up to 6Mbps | Varies by brand, often 1Mbps or lower |
| OS Support | Windows (10, 8.1, 8, 7), Mac OS (10.6-10.11) | Varies, often limited to older Windows versions |
| Compliance | NDAA Compliant (U.S./Canada Gov't) | Typically no specific compliance claims |
| Warranty | 2-Year Manufacturer Protection | Often 6-12 months, or none |
| SKU | tmh2790 |
| GTIN | 00710931303209 |
| Brand | TRENDnet |
| Model Number | TU-S9 |
| Color | White |
| Material | Rubber/Plastic |
| Cable Length | 64 cm (25 in.) |
| Item Weight | 40 grams |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners |
About TRENDnet
TRENDnet is a global leader in reliable networking solutions, specializing in high-performance, easy-to-use networking and surveillance products.
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.
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This item:
TRENDnet USB to Serial 9-Pin Converter Cable TU-S9 | 64cm (25 in.)
2,670
This item
TRENDnet USB to Serial 9-Pin Converter Cable TU-S9 | 64cm (25 in.)
2,670
Total price:
7,200
You save 3,670 (34%) Extra3 items selected
3 items
7,200You save 3,670 (34%) Extra
| Attributes |  |  |  |  | |||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 2,670 4,050 | 2,460 3,960 | 2,070 2,860 | 3,080 4,330 | 3,020 4,000 | 2,030 2,680 | 1,20,790 1,60,730 |
| Brand Name | TRENDnet | SABRENT | SABRENT | SABRENT | SABRENT | CableGeeker | HP |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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