# PCI Express serial controller Unitek Y-7504BBK01 with 2x RS-232 ports

**URL:** https://aio.lv/en/product--unitek-y-7504bbk01--11643043
**Data updated:** 2026-02-15 18:51 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** Unitek
**Manufacturer code:** Y-7504BBK01
**EAN:** 4894160058676
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 15.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unitek-y-7504bbk01--11643043

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Unitek PCI Express controller Y-7504BBK01 provides two RS-232 serial ports for adding legacy serial connectivity to desktop systems with a PCIe slot. The card installs into a standard PCI Express slot and exposes 2x RS-232 connectors for connecting serial devices such as modems, industrial equipment, barcode scanners, or POS terminals. It is designed for reliable data transfer and expands I/O capability where onboard serial ports are absent.

## Long description

The Unitek PCI Express serial controller Y-7504BBK01 provides two RS-232 serial ports to add legacy serial connectivity to desktop computers with an available PCIe slot. The card installs into a standard PCI Express slot and exposes two DB9-style RS-232 connectors for connecting serial devices such as modems, industrial controllers, barcode scanners, or point-of-sale terminals. It is intended to deliver stable data transfer and extend I/O capability in systems that lack onboard COM ports.
Advantages
This PCI Express serial controller offers reliable RS-232 communication with straightforward installation into a PCIe slot and full external access to two serial connectors. It is compatible with a variety of serial peripherals and is suitable for environments where long-established serial protocols remain in use. The compact card design preserves internal space while providing the necessary hardware interface for data logging, device configuration, and legacy peripheral integration.
Suitable for
Connecting modems and serial printers
Industrial equipment control and monitoring
Barcode scanners and POS peripherals
Data acquisition and serial console access
Key specifications
Interface: PCI Express x1 form factor (fits standard PCIe slot)
Ports: 2 × RS-232 external connectors (DB9-style)
Communication: Standard RS-232 serial signalling for asynchronous data transfer
Compatibility: Designed for desktop systems with available PCIe slots and operating systems that support serial controllers
Form factor: Low-profile / standard bracket compatibility for desktop installation
How to use
Install the card into an available PCI Express slot following standard anti-static precautions, secure the bracket to the chassis, and connect external serial devices to the DB9 connectors. After powering the system, install or enable the appropriate driver for your operating system so the OS recognizes the serial ports. Configure COM port settings (baud rate, parity, data bits, stop bits, flow control) in the host application or device manager to match the connected peripheral.
Usage recommendations
Use shielded serial cables and secure mechanical connections to minimize noise and signal errors. Verify driver compatibility with your operating system version and, where available, choose low-profile or standard brackets according to your chassis form factor. For industrial deployments, confirm grounding and isolation requirements for connected equipment to ensure reliable and safe serial communication.

## FAQ

### How much does the Unitek PCI Express controller Y-7504BBK01 cost, and is it available for purchase?

The price is 18.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 368 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 13.07.2026 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 Unitek 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 Unitek 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

## Image

https://aio.lv/img/cache/product/11643043/68524774_large.webp