# Internal RS-232 Adapter DeLOCK 90411

**URL:** https://aio.lv/en/product--delock-90411--3199824
**Data updated:** 2026-01-13 17:39 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** DELOCK
**Manufacturer code:** 90411
**EAN:** 4043619904112
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 109.99 €
**Prices and availability valid until:** 2026-07-10 23:59
**Price without VAT (21%):** 90.90 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--delock-90411--3199824

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The DeLOCK 90411 is an internal RS-232 adapter with PCIe interface, supporting data transfer rates up to 0.0009216 Gbit/s. It features a FIFO buffer of 256 B and supports data bits of 5, 6, 7, or 8. Compatible with Windows 10, 7, and 8.1, this green expansion card is ideal for connecting RS-232 devices with a maximum cable length of 0.45 m. Compact dimensions of 78 mm width, 93 mm depth, and 12 mm height make it suitable for various setups.

## Long description

The DeLOCK 90411 internal RS-232 adapter is a compact PCIe expansion card designed to add a single RS-232 serial port to a desktop or embedded system. The card provides a standard RS-232 output interface in a green PCB design and supports asynchronous serial communication at data transfer rates up to 0.0009216 Gbit/s. With an internal form factor and small physical dimensions (78 mm × 93 mm × 12 mm), the adapter fits into typical PC chassis to connect legacy serial devices, modems, barcode scanners or other RS-232 peripherals.
Advantages
The adapter offers a straightforward way to integrate one RS-232 port into systems that lack a native serial connector. A 256-byte FIFO buffer helps ensure stable data flow and reduces CPU load during burst transfers. The product supports configurable data bits (5, 6, 7 or 8) to match a range of serial protocols and devices. Compatibility with common Windows versions provides broad driver support for many applications.
Suitable for
Adding a single RS-232 port to desktop PCs and industrial PCs
Connecting legacy serial peripherals such as modems, barcode scanners, or serial printers
Embedded systems or compact builds where internal PCIe expansion is required
Software development and testing that require standard COM port access
Key specifications
Host interface: PCIe
Output interface: RS-232 (single port)
Maximum data transfer rate: up to 0.0009216 Gbit/s
FIFO buffer: 256 B
Supported data bits: 5, 6, 7, 8
Maximum recommended cable length: 0.45 m
Form factor: internal PCIe expansion card
Colour: green PCB
Physical dimensions (W × D × H): 78 mm × 93 mm × 12 mm
Operating system support: Windows 10, Windows 8.1, Windows 7
How to use
Install the adapter into an available PCIe slot on the motherboard while the system is powered off and the case is open. Secure the card in the chassis according to the case mounting method and reconnect power. After booting the system, install the appropriate drivers for the operating system if they are not automatically detected. Connect the RS-232 peripheral to the adapter using a suitable serial cable not exceeding the recommended cable length, then configure the COM port settings (baud rate, parity, stop bits, and data bits) in the application or device manager to match the connected device.
Usage recommendations
Use shielded serial cables and keep cable runs short (within the specified 0.45 m) to maintain signal integrity. Verify driver compatibility with your Windows version and set the serial port parameters to match the peripheral device for stable communication. For installations in electrically noisy environments, consider additional grounding or surge protection for the connected devices.

## Specifications

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 70 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Serial interface type | RS-232 |
| Serial ports quantity | 8 |
| Host interface | PCIe |
| Output interface | RS-232 |
| Expansion card standard | PCIe 1.1 |

### Other features

| Feature | Value |
|---|---|
| Quantity | 1 |
| Manual | Yes |
| Drivers included | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 12 mm |
| Width | 78 mm |
| Depth | 93 mm |

### System requirements

| Feature | Value |
|---|---|
| Windows operating systems supported | Windows 10, Windows 7, Windows 8.1 |

### Design

| Feature | Value |
|---|---|
| Internal | Yes |
| Product colour | Green |
| Maximum cable length | 0.45 m |

### Logistics data

| Feature | Value |
|---|---|
| Country of origin | China |

### Features

| Feature | Value |
|---|---|
| Flow control support | Yes |
| Data bits | 7, 8, 6, 5 |
| Stop bits | 1, 1.5, 2 |
| FIFO (First In, First Out) | 256 |
| Data transfer rate (max) | 0.0009 Gbit/s |

### Packaging data

| Feature | Value |
|---|---|
| Cables included | RS-232 |
| Package type | Box |

## FAQ

### How much does the Internal RS-232 Adapter DeLOCK 90411 cost, and is it available for purchase?

The price is 109.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 150 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 13.07.2026 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: Cash payment, 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 DELOCK 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 DELOCK 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: host interface, internal, output interface, 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/3199824/65749293_large.webp