# Expansion Card StarTech.com PEX2S1P553B

**URL:** https://aio.lv/en/product--startech-pex2s1p553b--298310
**Data updated:** 2025-12-28 21:14 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** StarTech
**Manufacturer code:** PEX2S1P553B
**EAN:** 0065030842426
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 51.49 €
**Prices and availability valid until:** 2026-07-08 23:59
**Price without VAT (21%):** 42.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-pex2s1p553b--298310

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

The StarTech.com PEX2S1P553B is a low-profile PCI Express Serial Parallel Combo Card with a breakout cable. It features a PCIe host interface, supporting both serial and parallel output. With a baud rate of 230.4 Kbit/s and a FIFO of 256 B, it is compatible with various Windows and Mac operating systems, making it versatile for different setups. The card is CE, FCC, and REACH certified, ensuring quality and reliability.

## Long description

The StarTech.com PEX2S1P553B is a low-profile PCI Express serial/parallel combo card that adds two RS-232 serial ports and one parallel (printer) port to a desktop or embedded system via a single PCIe expansion slot. The card uses a single breakout cable connector to present all three external ports and includes both low-profile and full-height brackets for flexible installation. Built with a native single-chip design, it delivers improved throughput and reduced CPU load compared with bridge-chip solutions and is compatible with a wide range of operating systems.
Advantages
The PEX2S1P553B provides a space-efficient, single-slot solution for adding legacy serial and parallel ports, with a breakout cable that prevents crowded I/O connectors. Its native single-chip architecture reduces CPU utilization and improves reliability, while the low-profile form factor plus optional full-height bracket enables installation in standard and slim systems. The card supports broad OS compatibility, including 32- and 64-bit Windows versions, Linux, macOS and DOS.
Suitable for
Adding RS-232 serial ports for industrial equipment, modems, barcode scanners or POS systems
Providing a parallel printer port for legacy printers and devices
Installing in space-constrained small-form-factor or embedded PCs
Upgrading systems that require reliable serial/parallel connectivity across multiple operating systems
Key specifications
Model: StarTech.com PEX2S1P553B
Interface: PCI Express (PCIe) host interface
Ports: 2 x RS-232 serial, 1 x parallel
Baud rate: up to 230.4 Kbit/s
FIFO: 256 B
Form factor: low-profile (half-height) with optional full-height bracket
Certifications: CE, FCC, REACH
Weight: 0.225 kg
Colour: Black, Silver
How to use
Install the card into an available PCIe x1 (or larger) expansion slot on the host computer, secure the chosen bracket (low-profile or full-height), and route the included breakout cable to the external devices. Connect serial devices to the two RS-232 connectors and a parallel device to the parallel connector on the breakout cable. After hardware installation, power on the system and install drivers if the operating system does not provide native support. Configure port settings (baud rate, parity, stop bits) in the operating system or application as required by the connected devices.
Usage recommendations
For optimal performance, use quality shielded cables for serial and parallel connections and verify driver compatibility with your OS version. If connecting to industrial equipment, confirm signal levels and grounding to prevent communication errors. Keep the breakout cable connection accessible for maintenance when installed in embedded or space-limited systems.

## Specifications

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 85 |
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 70 |

### Technical details

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

### Ports & interfaces

| Feature | Value |
|---|---|
| Serial interface type | RS-232 |
| Parallel ports quantity | 1 |
| Serial ports quantity | 2 |
| Host interface | PCIe |
| Output interface | Parallel, Serial |
| Expansion card form factor | Low-profile |

### Other features

| Feature | Value |
|---|---|
| Manual | Yes |
| Drivers included | Yes |
| Other operating systems supported | Windows Embedded POSReady 2009, Windows XP Embedded |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.225 kg |
| Package weight | 317 g |
| Height | 79 mm |
| Width | 23 mm |
| Depth | 95 mm |

### System requirements

| Feature | Value |
|---|---|
| Windows operating systems supported | Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, 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 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64, Windows Vista, 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 Vista Ultimate x64, Windows Vista x64, Windows XP, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64 |
| Mac operating systems supported | Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks |
| Linux operating systems supported | Y |
| Server operating systems supported | Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2016, Windows Server 2019 |

### Design

| Feature | Value |
|---|---|
| Internal | Yes |
| Product colour | Black, Silver |

### Performance

| Feature | Value |
|---|---|
| Certification | CE, FCC, REACH |
| Chipset | ASIX - MCS9901CV-CC |
| Logical block addressing (LBA) support | 8 bit |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733020 |

### Features

| Feature | Value |
|---|---|
| Supports EPP and ECP | Yes |
| Baud rate | 230.4 Kbit/s |
| Data bits | 5, 6, 7, 8 |
| Parity bit | Even, Mark, N, Odd, Space |
| FIFO (First In, First Out) | 256 |

### Packaging data

| Feature | Value |
|---|---|
| Cables included | Serial |
| Package depth | 143 mm |
| Package height | 32 mm |
| Package width | 173 mm |
| Mounting brackets included | Yes |

## FAQ

### How much does the Expansion Card StarTech.com PEX2S1P553B cost, and is it available for purchase?

The price is 51.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 22.06.2026 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: Cash payment, 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 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, 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.

### Where can I download the instructions for Expansion Card StarTech.com PEX2S1P553B?

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/298310/65746231_large.webp