# InLine PCI Multi I/O Controller Card 2 DB9 Serial Ports

**URL:** https://aio.lv/en/product--inline-66636a--10997392
**Data updated:** 2026-01-03 12:51 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** InLine
**Manufacturer code:** 66636A
**EAN:** 4043718333233
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 19.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--inline-66636a--10997392

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

The InLine PCI Multi I/O Controller Card features 2 DB9 serial ports, supporting various Windows and Linux operating systems. It is designed for reliable serial communication and is compatible with multiple server operating systems. Made in China, this card is suitable for enhancing connectivity options in your PC.

## Long description

The InLine PCI Multi I/O Controller Card provides two DB9 serial ports for expanding a PCI-capable desktop PC’s connectivity. Based on the CH351Q chipset with a maximum data rate of 2 Mbps, the card adds RS232 serial ports and supports serial network and RS485 communications, as well as a parallel/printer interface. It is compatible with a range of Windows and Linux operating systems and is intended for reliable serial communication in desktop and server environments.
Advantages
This InLine PCI card installs into any standard PCI slot to add two DB9 serial ports without requiring external adapters. The CH351Q chipset offers up to 2 Mbps transfer rate for typical serial applications. The card supports RS232 and RS485 signalling and includes a parallel/printer interface, making it a versatile solution for legacy devices and industrial equipment. It is compatible with common Windows and Linux distributions and is suitable for server and desktop systems.
Suitable for
Connecting legacy RS232 serial devices (modems, barcode scanners, POS terminals)
Industrial control systems using RS485 networks
Adding serial ports to desktop PCs and servers for device communication
Key specifications
Brand: InLine
Model / MPN: 66636A
EAN: 4043718333233
Host interface: PCI
Ports: 2 × DB9 serial ports
Chipset: CH351Q
Maximum data rate: 2 Mbps
Interfaces supported: RS232, RS485, parallel/printer
Internal installation: Yes (standard PCI slot)
Made in: China
How to use
Power down the PC, open the case and insert the card into a free standard PCI slot. Secure the card to the chassis and close the case. Boot the system and install the appropriate drivers for your operating system if they are not detected automatically. Connect serial devices to the DB9 ports using standard serial cables and configure port parameters (baud rate, parity, data bits, stop bits) in the operating system or application to match the connected devices.
Usage recommendations
Use shielded serial cables and proper grounding for industrial environments to reduce electrical interference. Verify driver compatibility with your specific Windows or Linux distribution and test communication settings with the target device before deploying in production.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| Serial interface type | DB9 |
| Serial ports quantity | 2 |
| Host interface | PCI |
| Output interface | Serial |
| Expansion card standard | PCI 2.2 |
| Host interface gender | Male |

### System requirements

| Feature | Value |
|---|---|
| Windows operating systems supported | Windows 10, Windows 11, Windows 7, Windows 8, Windows 98SE, Windows Vista, Windows XP |
| Linux operating systems supported | Linux Kernel 5.13, Kernel 4.6.4, Linux Kernel 5.14, Linux Kernel 5.15, Linux Kernel 5.19, Linux Kernel 5.4, Linux Kernel 5.8, Linux Kernel 5.9, Linux Kernel 6.2, Linux Kernel 5.11, Kernel 2.6, Kernel 2.6.31, Kernel 2.6.33, Kernel 3.12, Kernel 3.17, Kernel 3.3, Linux Kernel 5.10, Linux Kernel 5.12 |
| Server operating systems supported | Windows Server 2003, Windows Server 2007, Windows Server 2008, Windows Server 2012, Windows Server 2013, Windows Server 2016, Windows Server 2019, Windows Server 2022 |

### Design

| Feature | Value |
|---|---|
| Internal | Yes |

### Logistics data

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

## FAQ

### How much does the InLine PCI Multi I/O Controller Card 2 DB9 Serial Ports cost, and is it available for purchase?

The price is 23.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 80 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 07.07.2026 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 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. 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, 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/10997392/65750938_large.webp