# InLine PCI Multi I/O Controller Card 4 DB9 Serial Ports

**URL:** https://aio.lv/en/product--inline-66639i--434322
**Data updated:** 2026-01-03 12:45 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** InLine
**Manufacturer code:** 66639I
**EAN:** 4043718122660
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 24.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--inline-66639i--434322

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

The InLine PCI Multi I/O Controller Card features 4 DB9 serial ports, utilizing the MCS9865 chipset. It supports a maximum data transfer rate of 115.2 Mbit/s, making it ideal for high-speed data communication. Compatible with various operating systems including DOS 6.22, Windows 2000, XP, Server 2003, Vista, and Server 2008, this wired connectivity solution ensures reliable performance for your serial devices.

## Long description

This InLine PCI Multi I/O Controller Card provides four DB9 serial ports on a standard PCI interface, based on the MosChip MCS9865 chipset. It enables addition of serial and parallel connectivity to PCs whose motherboards no longer include these ports, supporting reliable wired connections for serial devices with a maximum data transfer rate of 115.2 Mbit/s. Drivers referenced in the supplied operating instructions point to an external website that is not affiliated with the manufacturer and is being misused for phishing; do not use that site.
Advantages
The PCI Multi I/O card supports up to four DB9 serial ports and uses a modern MosChip PCI peripheral controller for broad compatibility with PCI-capable systems. It delivers stable data transfer up to 115.2 Mbit/s and is suitable for continuous operation in industrial automation and legacy-device connectivity. The card installs in a standard PCI slot and restores serial/parallel ports on systems that lack them.
Suitable for
Connecting RS-232 serial devices such as barcode scanners, modems, and serial printers
Industrial automation equipment requiring multiple serial interfaces
Legacy hardware and POS systems that need additional COM ports
Key specifications
Brand: InLine
Model / MPN: 66639I
Interface: PCI (host interface)
Serial ports: 4 × DB9 (RS-232)
Chipset: MosChip MCS9865
Maximum data rate: 115.2 Mbit/s
Compatibility: DOS 6.22, Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008
EAN: 4043718122660
How to use
Power off the PC and insert the card into an available standard PCI slot on the motherboard. Secure the card in the chassis and reconnect power. Boot the system and install drivers appropriate for your operating system; do not use the externally referenced Drivers-Download website if it appears in the supplied instructions. After driver installation, connect serial devices to the DB9 ports and configure COM port settings in your operating system or application to match device requirements.
Usage recommendations
Use this card in systems with available PCI slots and ensure compatible drivers are installed from trusted sources. For industrial or continuous-use environments, verify cooling and slot accessibility. Avoid visiting or entering credentials on the third-party Drivers-Download website mentioned in the original instructions, as it is unrelated to the manufacturer and has been used for phishing.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| Serial ports quantity | 4 |
| Host interface | PCI |

### Other features

| Feature | Value |
|---|---|
| Mac compatibility | No |
| Ports quantity | 4 |
| Connectivity technology | Wired |
| Data transfer rate | 115.2 Mbit/s |

### System requirements

| Feature | Value |
|---|---|
| Compatible operating systems | DOS 6.22
Windows 2000, XP 32/64-bit, Server 2003 32/64-bit, Vista 32/64-bit, Server 2008 32/64-bit
Linux kernel 2.6.14+ |

### Performance

| Feature | Value |
|---|---|
| Chipset | MCS9865 |

### Features

| Feature | Value |
|---|---|
| Data transfer rate (max) | 0.1152 Gbit/s |

## FAQ

### How much does the InLine PCI Multi I/O Controller Card 66639I cost, and is it available for purchase?

The price is 29.99 € (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 29.06.2026 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. 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, 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 PCI Multi I/O Controller Card 66639I?

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.

## Image

https://aio.lv/img/cache/product/434322/65746931_large.webp