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header-product InLine 33304 USB to Serial Adapter Cable USB Type-A Male to DB9 Male Blue and Transparent
23.49 €

InLine 33304 USB to Serial Adapter Cable USB Type-A Male to DB9 Male Blue and Transparent

InLine 33304 USB to Serial Adapter Cable USB-A to DB9 Photo 1
InLine 33304 USB to Serial Adapter Cable USB-A to DB9 Photo 2
InLine 33304 USB to Serial Adapter Cable USB-A to DB9 Photo 1
InLine 33304 USB to Serial Adapter Cable USB-A to DB9 Photo 2
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InLine 33304 USB to Serial Adapter Cable USB Type-A Male to DB9 Male Blue and Transparent

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Short description

InLine USB to Serial Adapter Cable featuring a USB Type-A male connector and a DB9 male connector. Designed for connecting serial devices to a USB port. Colored in blue and transparent, this adapter cable is ideal for various computing and industrial applications requiring reliable serial communication.
Available at price 23.49 €: 357 pcs.
Total available for order: 689 pcs.
Warranty: 2 Years
SKU: 1082713
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
09.11.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
12.11.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.07 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
12.11.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
payment
Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

The InLine 33304 USB to Serial Adapter Cable USB Type-A Male to DB9 Male Blue and Transparent provides a reliable solution for connecting legacy serial devices to modern computer hardware. Featuring a USB Type-A male connector on one end and a DB9 male connector on the other, this cable seamlessly bridges the gap between USB interfaces and RS-232 serial peripherals. Measuring approximately 0.2 meters in length, the cable minimizes clutter at your workstation while offering dependable performance for various computing and industrial applications. Built with the Prolific PL2303GT chipset, it ensures stable data communication and broad compatibility with multiple operating systems.

Advantages

This adapter cable offers a straightforward method to integrate traditional RS-232 serial equipment into setups that lack native serial ports. The inclusion of the Prolific PL2303GT chipset guarantees dependable signal processing and data transfer speeds reaching up to 1 Mbps. Its compact length of 0.2 meters helps maintain a tidy workspace by eliminating excessive cable slack. Furthermore, the transparent and blue housing provides a distinct visual appearance while housing standard-compliant components for everyday professional and personal use.

Suitable for

  • Connecting older modems, ISDN systems, or personal digital assistants to computers
  • Linking industrial automation equipment with USB-equipped PCs
  • Service and maintenance tasks requiring temporary serial connections
  • Extending the usability of existing serial hardware without internal expansion cards

When it may not be suitable

This adapter cable is not designed for high-speed data transmission tasks that exceed the capabilities of USB 1.1 and standard RS-232 interfaces. It is also unsuitable for direct device-to-device serial connections that do not involve a USB host controller.

Key specifications

  • USB Type-A male connector
  • DB9 male connector
  • Cable length approximately 0.2 meters
  • Prolific PL2303GT chipset
  • Data transfer rate up to 1 Mbps
  • USB 1.1 specification compatibility
  • Blue and transparent housing color

How to use

To use the InLine USB to Serial Adapter Cable, first ensure your computer is powered on and running a compatible operating system such as Windows XP or later, or Mac OS 8.6 or higher. Connect the USB Type-A male end of the cable to an available USB port on your computer. Connect the DB9 male end to the corresponding serial port on your peripheral device. Install the required drivers provided with the product if the operating system does not configure the device automatically. Once installed, the connected serial device can be accessed through the assigned virtual COM port on your system.

What to consider before purchase

  • Verify that your operating system version is compatible with the adapter requirements
  • Check the physical connector gender and type on your serial peripheral to ensure a proper match
  • Confirm that your application does not require data transfer speeds higher than the supported limit
Usage recommendations: Always install the official drivers prior to heavy data transmission to ensure optimal stability and compatibility with your connected serial peripherals.

Specifications

Connector 2 gender: The gender of the second connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the indented one or the one fitting around the other being called female.
Male
Connector 1 gender: The gender of the first connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the part bearing one or which fits into another being called male.
Male
Connector 2: This is the second connector in the device.
DB-9
Connector 1: This is the first connector in the device.
USB Type-A
All features

Other features

Dimensions (WxDxH): Dimensions of the product (Width x Depth x Height).
34 x 300 x 15

Packaging data

Package volume:
400 cm³
Package weight: Weight of the packaged product.
70 g
Package height: The distance from the top to the bottom of the packaging.
30 mm
Package depth: The distance from the front to the back of the packaging.
140 mm
Package width: The distance from one side of the packaging to the other.
105 mm

Weight & dimensions

Height: The measurement of the product from head to foot or from base to top.
15 mm
Depth: The distance from the front to the back of something.
300 mm
Width: The measurement or extent of something from side to side.
34 mm
Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.05 kg

Features

Product colour: The colour e.g. red, blue, green, black, white.
Blue, Transparent
Connector 2 gender: The gender of the second connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the indented one or the one fitting around the other being called female.
Male
Connector 1 gender: The gender of the first connector of the product. Each half of a pair of mating connectors is assigned the designation male or female, the part bearing one or which fits into another being called male.
Male
Connector 2: This is the second connector in the device.
DB-9
Connector 1: This is the first connector in the device.
USB Type-A

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Stock data
Warehouse Stock Delivery to the store Store Price
WH357 357 09.11.2026 Best delivery
23.49 € Best price
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 332 24.11.2026
30.49 €
23.49 €
Stock: 357
Delivery Date: 09.11.2026 Best delivery
Warehouse: WH357
Available only for legal entities
30.49 €
Stock: 332
Delivery Date: 24.11.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the InLine 33304 USB to Serial Adapter Cable USB-A to DB9 cost, and is it available for purchase?

The price is 23.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 689 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 09.11.2026 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, Bank cards on-line, Apple Pay, Google Pay. 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 InLine 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 InLine 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connector 2 gender, connector 1 gender, connector 2, connector 1, 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.

Where can I download the instructions for InLine 33304 USB to Serial Adapter Cable USB-A to DB9?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.