# StarTech.com 6 ft Professional RS422/485 USB Serial Cable Adapter DB9 M USB-A FM

**URL:** https://aio.lv/en/product--startech-icusb422--10973651
**Data updated:** 2025-12-30 15:00 (EET)
**Category:** Cable Adapters & Converters
**Manufacturer:** StarTech
**Manufacturer code:** ICUSB422
**EAN:** 0065030836548
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 93.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 77.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-icusb422--10973651

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.99 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

The StarTech.com 6 ft Professional RS422/485 USB Serial Cable Adapter features a DB9 male connector and USB-A female connector. It provides reliable connectivity for RS422/485 devices, ensuring stable data transfer. The cable length of 1.8 m allows for flexible placement of devices. Its black color adds a professional touch, making it suitable for various applications.

## Long description

The StarTech.com ICUSB422 6 ft Professional RS422/485 USB Serial Cable Adapter (DB9 male to USB-A female) adds an RS422 or RS485 serial port to a USB-enabled computer. The 1.8 m black cable provides USB-powered serial connectivity with a DB9 male connector and USB-A female port. The adapter supports COM port retention so previously assigned port settings are preserved when the device is disconnected and reconnected, and it requires minimal software to operate.
Advantages
The adapter is USB powered and does not require an external power supply. It supports high-speed RS-422/RS-485 communication up to 921.6 kbps and offers simple dipswitch controls for port configuration. COM port retention preserves assigned port settings, reducing configuration when reconnecting the adapter. The product is backed by a two-year StarTech.com warranty and free lifetime technical support.
Suitable for
Connecting RS422 or RS485 industrial devices to modern computers without serial ports
Field service and diagnostic tools that require a DB9 serial interface
Point-of-sale systems, automation controllers, and legacy equipment integration
Key specifications
Model: ICUSB422
Connector 1: DB9 male
Connector 2: USB-A female
Cable length: 6 ft (1.8 m)
Data rate: up to 921.6 kbps
Power: USB powered (no external adapter required)
Colour: Black
Weight: 0.1 kg
How to use
Connect the DB9 male end to the RS422/485 device and plug the USB-A female end into a USB port on the host computer using a standard USB-A to USB-A or USB-A to USB-C cable as needed. Configure the serial settings on the host system (baud rate, parity, data bits, stop bits) and use the dipswitches on the adapter to set RS422 or RS485 mode and termination if required. Install the minimal driver or let the operating system enumerate the device; once installed the adapter will appear as a COM port.
Usage recommendations
For reliable communication, place the cable away from high-voltage or high-current power lines and ensure correct wiring for RS422 or RS485 topologies. Use the COM port retention feature to minimize reconfiguration after unplugging and reconnecting the adapter.

## Specifications

### Features

| Feature | Value |
|---|---|
| Cable length | 1.8 m |
| Product colour | Black |
| Connector 1 | DB9 M |
| Connector 2 | USB-A FM |
| Connector 1 form factor | Straight |
| Connector 2 form factor | Straight |
| Connector 1 gender | Male |
| Connector 2 gender | Female |

### Other features

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 41.5 x 1778 x 22.1 |
| Minimum system requirements | Win 98SE/ ME/ 2000/ XP(32/64bit)/ 2003(32/64bit)/ Vista(32/64bit)/ 2008(32/64bit)/ CE(4.2/5.2/6.0)
Mac 9.8/OS X
Linux 2.4.x + |

### Performance

| Feature | Value |
|---|---|
| Compatible operating systems | Windows CE (4.2, 5.0, 6.0), XP Embedded, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10, 11
Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016, 2019
macOS 10.6 to 10.15, 11.0, 12.0, 13.0
Linux Kernel 3.0.x+ |

### Logistics data

| Feature | Value |
|---|---|
| Master (outer) case height | 260 mm |
| Master (outer) case width | 430 mm |
| Master (outer) case length | 500 mm |
| Products per master (outer) case | 30 pc(s) |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 220 g |
| Package depth | 230 mm |
| Package height | 160 mm |
| Package width | 40 mm |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.1 kg |

## FAQ

### How much does the RS422/485 USB Serial Cable Adapter StarTech.com ICUSB422 cost, and is it available for purchase?

The price is 93.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 34 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All StarTech products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized StarTech service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connector 2, connector 1, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/10973651/61396330_large.webp