# MOXA CP-138U-I-T PCI Interface Card Adapter with 8-Port RS-422/485, Isolation Protection and Data Transfer Rates up to 921.6 Kbps

**URL:** https://aio.lv/en/product--moxa-47631m--494190
**Data updated:** 2026-08-27 04:37 (EEST)
**Category:** Other goods
**Manufacturer:** MOXA
**Manufacturer code:** 47631M
**EAN:** 5703431476318
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-11-06 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--moxa-47631m--494190

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.10.2026 | free |
| Pickup points | 27.10.2026 | 1.99 EUR |
| Courier delivery to door | 27.10.2026 | 4.99 EUR |

## Summary description

The MOXA CP-138U-I-T is a reliable PCI interface card and adapter designed for industrial communication applications. It features robust isolation protection and supports data transfer rates from 50 b/s up to 921.6 Kb/s. Compatible with a wide range of operating systems including Windows, Linux, FreeBSD, and QNX, this adapter ensures stable serial connectivity in demanding environments. Ideal for automation, networking, and legacy device integration.

## Long description

The MOXA CP-138U-I-T PCI Interface Card Adapter is a robust 8-port RS-422/485 communication solution engineered specifically for demanding industrial environments. Designed to facilitate stable long-distance data transmission, this smart serial board integrates advanced hardware features to ensure reliable multi-point communication in PC-based systems. Equipped with the Turbo Serial Engine chip, it delivers top-tier performance for various automation and networking tasks.
Advantages
This PCI interface card provides exceptional reliability through built-in optical isolation protection and electrostatic discharge defense, helping to prevent equipment damage in electrically noisy industrial settings. The inclusion of on-chip Automatic Data Direction Control simplifies RS-485 communication by managing line driver timing automatically. Furthermore, the high data throughput and support for fast baud rates ensure efficient handling of large volumes of serial data.
Suitable for
Industrial automation and control systems
Long-distance multi-point data acquisition
Legacy serial device integration
Connecting up to 31 daisy-chained RS-485 devices per port
When it may not be suitable
This adapter is not designed for standard consumer desktop computers lacking compatible PCI slots, nor is it suitable for basic home networking applications that rely on Ethernet or USB connections.
Key specifications
8-port RS-422/485 serial interface
Data transfer rates up to 921.6 Kbps
2 KV optical isolation protection
15 KV ESD protection
128-byte FIFO and on-chip hardware and software flow control
Compatible with 3.3/5V PCI and PCI-X slots
Broad operating system compatibility including Windows, Linux, FreeBSD, and QNX
How to use
To install the adapter, power down the host computer, open the chassis, and insert the card firmly into an available PCI or PCI-X slot. Secure the bracket, close the computer, and power it back on. Install the appropriate drivers for your operating system—such as Windows COM or Linux TTY drivers—provided by the manufacturer. Once installed, configure the serial ports through the management software and connect your RS-422 or RS-485 serial devices using appropriate cabling.
What to consider before purchase
Verify that your computer system has an available compatible PCI or PCI-X slot.
Check your operating system version against the supported driver list.
Ensure your peripheral devices utilize RS-422 or RS-485 communication standards.
Usage recommendations
For optimal performance and equipment safety in industrial installations, always ensure proper grounding and verify that cable lengths and daisy-chain configurations adhere to recommended RS-485 operational limits.

## Specifications

| Feature | Value |
|---|---|
| Certification | RoHS, CE, FCC |
| Supported data transfer rates | 50 b/s - 921.6 Kb/s |
| Operating relative humidity (H-H) | 5 - 95 |
| Storage temperature (T-T) | -20 - 85 |
| Power requirements | 5 V |
| Mac compatibility | No |
| Operating temperature (T-T) | 0 - 55 |
| Serial ports quantity | 8 |
| Width | 105 mm |
| Depth | 135 mm |
| Operating temperature (T-T) | 32 - 131 |
| Host interface | PCI |
| Compatible operating systems | Windows 2000/XP/2003/Vista/ME/NT/CE 5.0/XP/DOS
Linux 2.4/2.6
FreeBSD 4/5
QNX 6 |

## FAQ

### How much does the MOXA CP-138U-I-T PCI Interface Card Adapter cost, and is it available for purchase?

The price is 4.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 22.10.2026 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 MOXA 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 MOXA 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

### Where can I download the instructions for MOXA CP-138U-I-T PCI Interface Card Adapter?

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/494190/57332351_large.webp