# Sunix SER5056A PCI to 4-Port RS-232 Serial Interface Card

**URL:** https://aio.lv/en/product--sunix-ser5056a-b--12430671
**Data updated:** 2026-05-10 07:45 (EEST)
**Category:** Network Cards
**Manufacturer:** Sunix
**Manufacturer code:** SER5056A-B
**EAN:** 4710747388250
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 204.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 169.41 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sunix-ser5056a-b--12430671

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The Sunix SER5056A is a high-performance PCI interface card designed to add four RS-232 serial ports to your PC. Featuring a 128-byte FIFO buffer, it ensures reliable data transmission for industrial and professional applications. It supports a wide range of Windows and Linux operating systems, offering stable wired connectivity for legacy serial devices. This card is certified with FCC and CE standards for quality and safety.

## Long description

The Sunix SER5056A is a high-performance PCI interface card designed to expand your PC capabilities by adding four independent RS-232 serial ports. This universal communication board is engineered to support both 32-bit and 64-bit PCI architectures, ensuring compatibility with a wide range of computer systems using 3.3V or 5V bus power. Equipped with the advanced SUN1999 UART controller, this card provides reliable data transmission and is built to meet the rigorous demands of commercial and industrial automation environments.
Advantages
This interface card offers exceptional reliability through its integrated 128-byte FIFO buffer and 16C950 UART compatibility, which effectively prevents data loss during high-speed communication. The inclusion of on-chip hardware auto flow control and built-in ± 2KV ESD protection for all serial signals ensures stable and secure operation. Its Plug-n-Play design simplifies installation, as I/O addresses and IRQ settings are automatically managed by the system BIOS, making it a versatile solution for integrating legacy serial hardware into modern computing setups.
Suitable for
Industrial automation systems
Commercial serial device connectivity
Connecting legacy hardware to modern PCs
Data acquisition and control applications
This card is not suitable for systems that lack a physical PCI expansion slot, such as modern laptops or small form factor PCs that only feature PCIe slots. It is also not intended for high-speed networking tasks that require modern Ethernet or fiber optic interfaces, as it is strictly designed for RS-232 serial communication protocols.
Key specifications
Host interface: PCI
Output interface: 4 x RS-232 serial ports
Data transfer speed: Up to 115.2 Kbps
FIFO buffer: 128 bytes
Bus compatibility: 3.3V and 5V, 32-bit and 64-bit PCI
Operating system support: Windows, Linux, and DOS
How to use
To install the Sunix SER5056A, power down your computer and disconnect it from the power source. Open the computer case and insert the card into an available PCI expansion slot, ensuring it is firmly seated. Once installed, secure the bracket with a screw and close the case. Upon restarting your computer, the operating system should detect the new hardware automatically. Install the appropriate drivers for your specific operating system to enable full functionality of the four serial ports.
What to consider before purchase
Verify that your motherboard has an available physical PCI slot.
Ensure your operating system is compatible with the card drivers.
Confirm that your peripheral devices utilize the RS-232 serial interface.
For optimal performance and to prevent potential data loss, ensure that the card is fully seated in the PCI slot and that the latest drivers provided by the manufacturer are installed for your specific operating system version.

## Specifications

| Feature | Value |
|---|---|
| Serial interface type | RS-232 |
| Transfer rate | 0.014 MB/s |
| Purpose | PC |
| Electrostatic Discharge (ESD) protection | 2 kV |
| User guide | Yes |
| Output interface | Serial |
| FIFO (First In, First Out) | 128 |
| Compliance certificates | RoHS |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired |
| Host interface | PCI |
| Internal | Yes |
| Connector(s) | DB44 F |

### Performance

| Feature | Value |
|---|---|
| Plug and Play | Yes |
| Windows operating systems supported | Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Ultimate x64 |
| Linux operating systems supported | Y |
| Server operating systems supported | Windows 2000 Advanced Server, Windows 2000 Server, Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 x64 |

### Operational conditions

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

### Certificates

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

### Other features

| Feature | Value |
|---|---|
| Ports quantity | 1 |
| Operating temperature (T-T) | 32 - 140 |
| Compatible operating systems | Linux 2.4.x / 2.6.x |

## FAQ

### How much does the Sunix SER5056A PCI 4-Port Serial Interface Card cost, and is it available for purchase?

The price is 204.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 08.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Sunix SER5056A PCI 4-Port Serial Interface Card be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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: connectivity technology, 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.

## Image

https://aio.lv/img/cache/product/12430671/68730172_large.webp