# Internal PCIe Interface Card Sunix MIO6479A — Parallel and Serial Ports, PCIe 2.0, Host Interface PCIe

**URL:** https://aio.lv/en/product--sunix-mio6479a--3199716
**Data updated:** 2026-03-11 11:43 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** Sunix
**Manufacturer code:** MIO6479A
**EAN:** 4710747388762
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Sunix MIO6479A is an internal expansion card providing parallel and serial output interfaces via a PCIe host connection (PCIe 2.0). Designed as a compact internal adapter (width 78 mm, depth 85 mm), it adds legacy parallel and RS‑232/serial connectivity to systems with a PCIe slot. Certified to CE and FCC standards, it suits industrial, POS, and legacy device integration.

## Long description

Sunix MIO6479A is an internal PCIe expansion card that restores legacy connectivity by adding two RS-232 serial ports and one IEEE1284 parallel (LPT) port to systems with a PCIe slot. The card conforms to PCI Express Base Specification Revision 2.0 and works in x1, x2, x4, x8 and x16 slots, providing broad motherboard compatibility. With a compact PCB size (approx. 78 mm × 85 mm) and native SUNIX controller design, this board is intended for industrial and commercial environments where reliable serial and parallel I/O is required.
Advantages
The MIO6479A integrates a SUNIX SUN2410 native PCI Express UART and IEEE1284 controller to deliver stable serial communication and parallel printing/legacy device support. On-chip hardware auto flow control and ±15 kV ESD protection on serial lines improve data integrity and protect connected equipment. The card supports SPP, ECP, EPP and bi-directional parallel modes, offers plug-and-play installation with system-assigned I/O addresses and IRQs, and is certified to CE, FCC, RoHS and Microsoft WHQL standards for broad OS compatibility.
Suitable for
Connecting RS-232 serial instruments, barcode scanners, modems and industrial controllers
Adding IEEE1284 parallel port support for legacy printers, labelers and measurement devices
Upgrading industrial PCs, point-of-sale systems and automation controllers that lack serial/parallel ports
Key specifications
Interfaces: 2 × RS-232 serial ports, 1 × IEEE1284 parallel (LPT) port
PCIe compatibility: PCI Express Base Spec Revision 2.0; supports x1/x2/x4/x8/x16 slots
Controller: Native SUNIX SUN2410 PCIe UART and IEEE1284 controller
Hardware features: on-chip hardware auto flow control for serial data
Protection: built-in ±15 kV ESD protection on serial signals (meets IEC1000-4-2)
Parallel modes: SPP, ECP, EPP, bi-directional parallel port
Form factor: internal low-profile/standard bracket compatible (approx. 78 mm × 85 mm PCB)
OS support: Microsoft Windows, Linux, DOS
How to use
Power down the computer, open the chassis and install the MIO6479A into an available PCIe slot that matches or accepts x1, x2, x4, x8 or x16 connectors. Secure the bracket, close the case and power on the system. The board supports plug-and-play so the operating system will typically assign I/O addresses and IRQs automatically; install or update drivers if required for your OS version. Connect serial devices using DB9-compatible cables to the RS-232 ports and parallel devices to the IEEE1284 connector. Verify communication parameters (baud rate, parity, stop bits, flow control) and parallel mode (SPP/ECP/EPP) in device settings or the device driver as needed.
Usage recommendations
For reliable serial communication in industrial environments, enable hardware flow control where supported and use shielded cables with proper grounding. When using the parallel port for printers or legacy devices, select the appropriate parallel mode (ECP/EPP/SPP) in the system driver to match the peripheral’s requirements. Keep drivers up to date for compatibility with newer Windows or Linux distributions.

## Specifications

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 95 |
| Storage temperature (T-T) | -20 - 85 |
| Operating temperature (T-T) | 0 - 60 |

### Technical details

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS |

### Ports & interfaces

| Feature | Value |
|---|---|
| Serial interface type | RS-232 |
| Parallel ports quantity | 1 |
| Serial ports quantity | 2 |
| Host interface | PCIe |
| Output interface | Serial, Parallel |
| Expansion card standard | PCIe 2.0 |

### Other features

| Feature | Value |
|---|---|
| RS-232 interface | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 78 mm |
| Depth | 85 mm |

### System requirements

| Feature | Value |
|---|---|
| Windows operating systems supported | Y |
| Linux operating systems supported | Y |

### Design

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

### Performance

| Feature | Value |
|---|---|
| Certification | CE, FCC |

### Features

| Feature | Value |
|---|---|
| Plug and Play | Yes |
| Supports EPP and ECP | Yes |

## FAQ

### 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 Sunix 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 Sunix 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.

### Where can I download the instructions for Sunix MIO6479A PCIe Internal Parallel & Serial Card?

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/3199716/58273265_large.webp