# Internal Serial Interface Card Sunix SER5056AL — PCI, Low-profile, Serial outputs, Orange

**URL:** https://aio.lv/en/product--sunix-ser5056al--434338
**Data updated:** 2026-03-11 11:40 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** Sunix
**Manufacturer code:** SER5056AL
**EAN:** 4718359442933
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 29.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sunix-ser5056al--434338

## 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

Sunix SER5056AL is an internal PCI serial interface card in a low-profile expansion form factor. It provides serial (RS-232) output connections for PC systems, is designed for internal installation, and comes in an orange housing. Suitable for legacy device connectivity, industrial equipment, POS systems and serial peripherals. CE and FCC certified.

## Long description

Sunix SER5056AL is an internal low-profile PCI serial interface card that adds four independent RS-232 ports to PC systems. Housed in an orange low-profile bracket, the card supports both 3.3V and 5V PCI bus slots and is compatible with 32-bit and 64-bit PCI architectures. It integrates a SUN1999 UART controller compatible with the 16C950 specification, provides 128-byte FIFO buffering and on-chip hardware auto flow control to reduce data loss, and includes built-in ESD protection for reliable communication with legacy and industrial serial devices.
Advantages
The card expands system connectivity by providing four RS-232 serial outputs at communication speeds up to 115.2 kbps while maintaining compatibility with standard PCI slots and slim chassis thanks to its low-profile bracket. Onboard 128-byte FIFO and hardware flow control improve data integrity during high-throughput or burst transfers. Integrated ±2 kV ESD protection and compliance with CE, FCC and RoHS ensure robust operation in office and industrial environments. Plug-and-play support with BIOS-assigned I/O address and IRQ simplifies installation across multiple operating systems including Windows, Linux and DOS.
Suitable for
Connecting legacy serial peripherals such as barcode scanners and modems
Point-of-sale (POS) systems requiring multiple serial ports
Industrial automation and control equipment integration
Embedded or slim desktop systems needing low-profile expansion
Key specifications
Interface: PCI host interface, supports 33 MHz bus
Form factor: low-profile internal expansion card with low-profile bracket
Serial ports: 4 independent RS-232 outputs
UART: SUN1999 controller, 16C950 compatible
Buffer: 128-byte onboard FIFO per card
Data rate: up to 115.2 kbps per port
Bus voltage support: 3.3V and 5V PCI slots; compatible with 32-bit and 64-bit PCI
Protection: built-in ±2 kV ESD protection on serial signals
Compatibility: supports Windows, Linux and DOS drivers
How to use
Install the SER5056AL into a free PCI slot on the system motherboard using the low-profile bracket if the chassis is slim. Ensure the host system provides a compatible 3.3V or 5V PCI slot and that the card is firmly seated. After powering on, allow the BIOS to assign I/O addresses and IRQs automatically. Install or verify the appropriate drivers for your operating system (Windows, Linux or DOS) so that applications can access the added COM ports. Connect RS-232 devices to the card’s serial outputs using standard serial cables and configure communication parameters (baud rate, parity, data bits, stop bits and flow control) in the host software.
Usage recommendations
Use shielded serial cables for longer runs or electrically noisy environments and enable hardware flow control when transferring large or continuous data streams to minimize data loss. Verify chassis compatibility with low-profile brackets before installation, and ensure you use updated drivers from your system vendor for best stability in modern operating systems.

## 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 |
| Host interface | PCI |
| Output interface | Serial |
| Expansion card standard | PCI 3.0 |
| Expansion card form factor | Low-profile |

### Other features

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

### System requirements

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

### Design

| Feature | Value |
|---|---|
| Internal | Yes |
| Product colour | Orange |
| Purpose | PC |

### Performance

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

### Features

| Feature | Value |
|---|---|
| Plug and Play | Yes |

## FAQ

### How much does the Sunix SER5056AL internal PCI serial card cost, and is it available for purchase?

The price is 35.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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. 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, 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/434338/56503273_large.webp