# PCIe Serial Expansion Card StarTech PEX2S1050 — 2-Port RS232, 16C1050 UART, Full/Low‑Profile

**URL:** https://aio.lv/en/product--startech-pex2s1050--434373
**Data updated:** 2026-03-20 09:42 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** StarTech
**Manufacturer code:** PEX2S1050
**EAN:** 0065030868297
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 74.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 61.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-pex2s1050--434373

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

StarTech PEX2S1050 is a 2-port PCI Express serial expansion card providing RS232 connectivity via a SystemBase 16C1052/16C1050-family UART. Designed as a full-height card with low-profile bracket option, it supports PCIe host interface, up to 460.8 Kbit/s baud, 256‑byte FIFO, and is certified CE, FCC and Microsoft WHQL. Suitable for connecting serial devices, legacy equipment and industrial controllers on Windows and server platforms.

## Long description

The StarTech PEX2S1050 is a 2-port PCI Express serial expansion card that provides RS232 connectivity for desktops and servers using a SystemBase 16C1050-family UART. Designed for installation in a PCIe slot, the card supplies two DB9 serial ports in a full-height form factor with an included low-profile bracket option. It supports PCIe host interfaces and is compatible with 1x, 2x, 4x, 8x and 16x PCI Express slots. Certified to CE, FCC and Microsoft WHQL standards, the PEX2S1050 is intended for reliable serial device integration on modern systems that lack onboard RS232 ports.
Advantages
The card delivers high-performance serial communication with support for baud rates up to 460.8 Kbit/s and a 256-byte FIFO per channel to reduce CPU overhead and minimize overrun errors. Dual 16C1050 UART channels provide stable operation when both ports are active. The product ships with a standard-profile bracket preinstalled and includes a low-profile bracket for small-form-factor systems, and it supports IRQ sharing and plug-and-play installation on a broad range of Windows platforms. CE, FCC and Microsoft WHQL certifications ensure compatibility and regulatory compliance.
Suitable for
Connecting legacy equipment such as modems, POS terminals and serial printers
Integrating industrial controllers, PLCs and automation hardware
Surveillance and security systems using serial cameras, card readers or access panels
Upgrading servers and workstations that require additional RS232 ports
Key specifications
Interface: PCI Express host interface (compatible with 1x/2x/4x/8x/16x slots)
Output: 2 × RS232 DB9 serial ports
UART: SystemBase 16C1050-family (dual-channel)
Maximum baud rate: Up to 460.8 Kbit/s
FIFO: 256-byte FIFO per channel
Form factor: Full-height card with optional low-profile bracket
Operating system support: Broad Windows driver support and Microsoft WHQL certified
Weight: 0.061 kg
How to use
Install the PEX2S1050 into an available PCI Express slot in a powered-off desktop or server, secure the card with the chassis screw and replace the bracket if required for low-profile systems. Boot the system and allow the operating system to detect the new serial adapter; install drivers if prompted or required by your Windows version. Connect serial devices to the DB9 ports using standard RS232 cables and configure port settings (baud rate, parity, data bits, stop bits, and flow control) in device manager or the application that uses the serial ports.
Usage recommendations
Use quality shielded RS232 cables for reliable communication in electrically noisy environments. When connecting multiple serial devices, configure unique COM port assignments to avoid conflicts and enable IRQ sharing if necessary. For industrial or mission-critical installations, verify driver compatibility with your Windows version and perform firmware/driver updates before deployment.

## Specifications

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 85 |
| Storage temperature (T-T) | -20 - 100 |
| Operating temperature (T-T) | -10 - 80 |

### Technical details

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

### Ports & interfaces

| Feature | Value |
|---|---|
| Serial interface type | RS-232 |
| Serial ports quantity | 2 |
| Host interface | PCIe |
| Output interface | Serial |
| Expansion card form factor | Full-height / Low-profile |

### Other features

| Feature | Value |
|---|---|
| Drivers included | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.061 kg |
| Package weight | 149 g |
| Height | 20 mm |
| Width | 120 mm |
| Depth | 103 mm |

### System requirements

| Feature | Value |
|---|---|
| Windows operating systems supported | Windows 8 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Enterprise x64, Windows 8.1 Enterprise, Windows 8.1, Windows 8 x64, Windows 8 Pro x64, Windows 8 Pro, Windows 98SE, Windows 8 Enterprise, Windows 8, Windows 7 Ultimate x64, Windows 7 Ultimate, Windows 7 Starter x64, Windows 7 Starter, Windows 8.1 Pro x64, Windows 8.1 x64, Windows 95, Windows ME, Windows Vista Business, Windows Vista Business x64, Windows Vista Ultimate 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 7 Professional, Windows XP Professional x64, Windows XP Professional, Windows XP Home x64, Windows XP Home, Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise x64, Windows 7 Professional x64, Windows 7 Home Premium x64, Windows 7 Home Premium, Windows 7 Home Basic x64, Windows 7 Home Basic, Windows 7 Enterprise x64, Windows 7 Enterprise, Windows 10 Pro x64, Windows 10 Pro, Windows 10 Home x64, Windows 10 Home, Windows 10 Enterprise |
| Server operating systems supported | Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2 |

### Design

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

### Performance

| Feature | Value |
|---|---|
| Certification | CE, FCC, Microsoft WHQL |
| Chipset | SystemBase - SB16C1052PCI |

### Logistics data

| Feature | Value |
|---|---|
| Master (outer) case height | 319 mm |
| Master (outer) case width | 356 mm |
| Master (outer) case length | 691 mm |
| Products per master (outer) case | 75 pc(s) |
| Harmonized System (HS) code | 84733020 |

### Features

| Feature | Value |
|---|---|
| Full duplex | Yes |
| Flow control support | Yes |
| Baud rate | 460.8 Kbit/s |
| Data bits | 8, 5, 6, 7 |
| FIFO (First In, First Out) | 256 |

### Packaging data

| Feature | Value |
|---|---|
| Package depth | 174 mm |
| Package height | 32 mm |
| Package width | 143 mm |
| Quick installation guide | Yes |
| Mounting brackets included | Yes |

## FAQ

### How much does the StarTech PEX2S1050 PCIe 2‑Port RS232 Serial Card cost, and is it available for purchase?

The price is 74.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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 06.07.2026 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 StarTech PEX2S1050 PCIe 2‑Port RS232 Serial 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 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: host interface, weight, 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 StarTech PEX2S1050 PCIe 2‑Port RS232 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/434373/65746960_large.webp