# 4 Port PCI Express Serial Combo Card StarTech PEX4S232485-OB

**URL:** https://aio.lv/en/product--startech-pex4s232485-ob--4342868
**Data updated:** 2025-12-29 17:16 (EET)
**Category:** Serial & Parallel Cables
**Manufacturer:** StarTech
**Manufacturer code:** PEX4S232485-OB
**EAN:** 000065030849357
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 184.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 152.47 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-pex4s232485-ob--4342868

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The StarTech.com 4 Port PCI Express Serial Combo Card features 2 x RS232 and 2 x RS422/RS485 interfaces, ideal for connecting multiple serial devices. With a PCIe host interface and a SystemBase SB16C1052PCI chipset, it supports FIFO of 256 B. Compatible with Windows 2000 and Windows 7, it offers reliable performance for various applications. Dimensions: 125mm x 70mm x 20mm.

## Long description

The StarTech 4 Port PCI Express Serial Combo Card (PEX4S232485-OB) provides two RS-232 ports and two ports configurable for RS-422 or RS-485, adding serial connectivity to a PC via a PCI-Express slot. The card uses the SystemBase SB16C1052PCI chipset, supports a 256-byte FIFO, and is compatible with Windows 2000 and Windows 7. It ships with both full-height and low-profile brackets and an integrated breakout cable for convenient connection of multiple serial devices.
Advantages
This single PCIe combo card supports multiple serial protocols (RS-232, RS-422, RS-485), enabling communication with a mix of devices from one expansion slot. Included full and low-profile brackets ensure compatibility with a wide range of system form factors, while the bundled breakout cable provides an all-in-one connection solution and helps reduce cable clutter. The card is backed by StarTech.com's lifetime warranty and free lifetime technical support.
Suitable for
Connecting legacy RS-232 serial devices such as barcode scanners, POS terminals, and serial printers
Integrating RS-422 or RS-485 industrial equipment like PLCs, sensors, and motor controllers
Upgrading small form factor or full-size PCs that require additional serial ports
Key specifications
Model: PEX4S232485-OB
Interfaces: 2 x RS-232, 2 x RS-422/RS-485 (2-wire or 4-wire)
Host interface: PCI Express (PCIe)
Chipset: SystemBase SB16C1052PCI
FIFO: 256 bytes
Compatible OS: Windows 2000, Windows 7
Dimensions: 125 mm x 70 mm x 20 mm
How to use
Power down your PC and insert the card into an available PCI-Express slot, then secure it with the appropriate bracket (full-height or low-profile). Connect the included breakout cable to the card’s header and route the cable to your serial devices, wiring each connector according to the required protocol (RS-232, RS-422, or RS-485). Power on the system and install any necessary drivers for your operating system. Configure serial port settings (baud rate, parity, stop bits) in your application or device manager as required.
Usage recommendations
Use the breakout cable provided to centralize connections and reduce clutter. For industrial RS-422/RS-485 links, use twisted-pair cabling and proper termination where required. Verify driver compatibility with your OS version before installation.

## Specifications

| Feature | Value |
|---|---|
| Internal | Yes |
| Weight | 0.0674 kg |
| Operating relative humidity (H-H) | 20 - 80 |
| Chipset | SystemBase SB16C1052PCI |
| Storage temperature (T-T) | 0 - 150 |
| Package weight | 390 g |
| Operating temperature (T-T) | 0 - 100 |
| Serial interface type | RS-232/422/485 |
| Serial ports quantity | 4 |
| Height | 20 mm |
| Width | 125 mm |
| Depth | 70 mm |
| Connectivity technology | Wired |
| Data transfer rate | 0.4608 Mbit/s |
| Host interface | PCIe |
| Package depth | 210 mm |
| Package height | 41 mm |
| Package width | 146 mm |
| Windows operating systems supported | Windows Vista Ultimate x64, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows 8 Enterprise, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64, Windows 2000, Windows 2000 Professional, Windows 7 Home Basic, Windows 7 Home Basic x64, 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 8 |
| Linux operating systems supported | Y |
| User guide | Yes |
| Output interface | Serial |
| FIFO (First In, First Out) | 256 |
| Harmonized System (HS) code | 84733020 |
| Sustainability certificates | RoHS |

## FAQ

### How much does the 4 Port PCI Express Serial Combo Card StarTech PEX4S232485-OB cost, and is it available for purchase?

The price is 184.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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 14.07.2026 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. 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 StarTech 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 StarTech 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

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