---
product_id: 12639358
title: "YEASTAR YST-O2-2 FXO Ports Module, 2 FXO Ports, Ethernet, Compatible with PBX Series & Asterisk, Red, 1 Pound, Business Use"
brand: "yeastar"
price: "88821 Ft"
currency: HUF
in_stock: true
reviews_count: 2
url: https://www.desertcart.hu/products/12639358-yeastar-yst-o2-2-fxo-ports-module-2-fxo-ports
store_origin: HU
region: Hungary
---

# Ethernet connectivity 2 FXO analog ports ZyNOS OS compatibility YEASTAR YST-O2-2 FXO Ports Module, 2 FXO Ports, Ethernet, Compatible with PBX Series & Asterisk, Red, 1 Pound, Business Use

**Brand:** yeastar
**Price:** 88821 Ft
**Availability:** ✅ In Stock

## Summary

> 📞 Power your calls with precision and style!

## Quick Answers

- **What is this?** YEASTAR YST-O2-2 FXO Ports Module, 2 FXO Ports, Ethernet, Compatible with PBX Series & Asterisk, Red, 1 Pound, Business Use by yeastar
- **How much does it cost?** 88821 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/12639358-yeastar-yst-o2-2-fxo-ports-module-2-fxo-ports)

## Best For

- yeastar enthusiasts

## Why This Product

- Trusted yeastar brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Durable red chassis engineered for consistent performance in demanding business environments.
- • **Plug & Play Ethernet:** Easy network setup ensures your PBX system stays connected and reliable.
- • **Compact & Lightweight:** Sleek 3x3x0.6 inch design fits perfectly in any office setup without bulk.
- • **Universal Compatibility:** Works flawlessly with Yeastar PBX series and Asterisk platforms for ultimate flexibility.
- • **Seamless PSTN Integration:** Connect 2 analog phone lines effortlessly for crystal-clear business calls.

## Overview

The YEASTAR YST-O2-2 FXO Ports Module offers 2 analog PSTN line connections with Ethernet support, designed for seamless integration with Yeastar PBX series and Asterisk systems. Its compact, lightweight design and ZyNOS operating system ensure reliable, high-quality telephony for professional business use.

## Description

YEASTAR 2 FXO ports. Two analog PSTN(POTS) lines. 0.05 lbs. normal weight 0.01 lbs. dimensional air weight 0.01 lbs. dimensional ground weight.

## Features

- Two analog PSTN(POTS) lines
- Compatible with my PBX series
- Compatible YEASTAR asterisk card
- 0.05 lbs. normal weight 0.01 lbs. dimensional air weight 0.01 lbs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | YEASTAR |
| Series | YST-O2-2 |
| Item model number | YST-O2-2 FXO Ports |
| Operating System | ZyNOS |
| Item Weight | 1 pounds |
| Product Dimensions | 3 x 3 x 0.6 inches |
| Item Dimensions  LxWxH | 3 x 3 x 0.6 inches |
| Color | Red |
| Manufacturer | Yeastar |
| ASIN | B005MWMSRY |
| Is Discontinued By Manufacturer | No |
| Date First Available | September 14, 2011 |

## Product Details

- **Brand:** YEASTAR
- **Model Name:** YST-O2-2
- **Special Feature:** Advanced Telephony Features, PBX Compatibility
- **Compatible Devices:** Laptop, Personal Computer, Smartphone, Tablet
- **Recommended Uses For Product:** Business
- **Connectivity Technology:** Ethernet
- **Color:** Red
- **Item Weight:** 16 ounces
- **Operating System:** ZyNOS
- **Number of Ports:** 2

## Images

![YEASTAR YST-O2-2 FXO Ports Module, 2 FXO Ports, Ethernet, Compatible with PBX Series & Asterisk, Red, 1 Pound, Business Use - Image 1](https://m.media-amazon.com/images/I/61tVn6TTeGL.jpg)

## Questions & Answers

**Q: it work on yeastar s100-040 to expand 2 more fxo?**
A: You. If you already have the S100-040, then yes, the YST-O2M will add another 2 FXO Ports.
Make sure you buy from Authorized Seller, since it requires you opening the unit to install the module. >> Platinum Yeastar Partner >>> CITICALLS

## Customer Reviews

### ⭐ Did not work with S50
*by B***R on June 29, 2023*

I purchased two of these previously with a new S50 unit. Worked fine. Just purchased a new S50 unit and two more of these modules. Modules did not work. Removed the older modules from the previous unit and they worked fine. The new modules look similar to the older ones but the chips are different. New modules do not work.

### ⭐ did not work with u200
*by J***S on July 27, 2022*

Looks genuine - but unfortunately it did not function (or even detect) in my Yeastar u200.

## Frequently Bought Together

- YEASTAR YST-O2-2 FXO Ports Module, 2 FXO Ports, Ethernet, Compatible with PBX Series & Asterisk, Red, 1 Pound, Business Use
- Yeastar S20 - PBX Business Phone System (Barebones) (No modules)
- Yealink T33G IP Phone, 4 VoIP Accounts. 2.4-Inch Color Display. Dual-Port Gigabit Ethernet, 802.3af PoE, Power Adapter Not Included (SIP-T33G)

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**Shop now:** [https://www.desertcart.hu/products/12639358-yeastar-yst-o2-2-fxo-ports-module-2-fxo-ports](https://www.desertcart.hu/products/12639358-yeastar-yst-o2-2-fxo-ports-module-2-fxo-ports)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-07*