---
product_id: 269711580
title: "TeleDynamics YEASTAR YST-O2-2 FXO Ports O2 Module, 2 FXO Ports"
brand: "yeastar"
price: "518.30 DT"
currency: TND
in_stock: true
reviews_count: 4
category: "Yeastar"
url: https://www.desertcart.tn/products/269711580-teledynamics-yeastar-yst-o2-2-fxo-ports-o2-module-2
store_origin: TN
region: Tunisia
---

# 100 Mbps Ethernet connectivity 2 FXO ports for PSTN lines Plug & play easy installation TeleDynamics YEASTAR YST-O2-2 FXO Ports O2 Module, 2 FXO Ports

**Brand:** yeastar
**Price:** 518.30 DT
**Availability:** ✅ In Stock

## Summary

> 📞 Stay connected, stay ahead — the power of two FXO ports in one sleek module!

## Quick Answers

- **What is this?** TeleDynamics YEASTAR YST-O2-2 FXO Ports O2 Module, 2 FXO Ports by yeastar
- **How much does it cost?** 518.30 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/269711580-teledynamics-yeastar-yst-o2-2-fxo-ports-o2-module-2)

## 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

- • **Blazing Fast Ethernet:** Enjoy reliable 100 Mbps data transfer for smooth telephony operations.
- • **Compact & Lightweight:** Sleek red module weighing just 1 lb, perfect for modern office environments.
- • **Plug & Play Simplicity:** Get up and running quickly with straightforward installation—no hassle, no downtime.
- • **Robust PBX Compatibility:** Works flawlessly with Yeastar P550 and other PBX systems for professional setups.
- • **Seamless PSTN Integration:** Connect two analog phone lines effortlessly with dual FXO ports.

## Overview

The TeleDynamics YEASTAR YST-O2-2 FXO Ports O2 Module offers two analog FXO ports to connect PSTN lines seamlessly. Featuring 100 Mbps Ethernet connectivity and advanced telephony features, it integrates smoothly with PBX systems like the Yeastar P550. Lightweight and easy to install, this compact red module is designed for professional environments demanding reliable, high-performance landline communication.

## 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.

Review: Needed with the Yeastar P550 to connect PSTN lines - Works as expected. Easy to install.
Review: Great product and works perfectly - Product is exactly as stated in the page. It is correct and in perfect condition. I tried it and ita working perfectly. Got it for 235 AED which is the best price you can get this piece anywhere on the net. Highly recommended

## Features

- manufacturer: YEASTAR
- Item Trademark: YEASTAR
- Item Weight: pounds, pounds, 1., 1.
- Item Category: Landline Phone

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005MWMSRY |
| Antenna Location | Business |
| Antenna Type | Internal |
| Best Sellers Rank | #6,793 in Computers ( See Top 100 in Computers ) #23 in Motherboards |
| Brand | YEASTAR |
| Color | Red |
| Compatible Devices | Laptop, Personal Computer, Smartphone, Tablet |
| Connectivity Protocol | Ethernet |
| Connectivity Technology | Ethernet |
| Control Method | Touch |
| Customer Reviews | 4.3 4.3 out of 5 stars (11) |
| Frequency Band Class | Dual-Band |
| Global Trade Identification Number | 00724580611943 |
| Is Modem Compatible | No |
| Item Weight | 1 Pounds |
| LAN Port Bandwidth | 100 Mbps |
| Manufacturer | Yeastar |
| Maximum Upstream Data Transfer Rate | 100 Megabits Per Second |
| Mfr Part Number | YST-O2-2 FXO Ports |
| Model Name | YEASTAR YST-O2-2 FXO Ports |
| Model Number | YST-O2-2 FXO Ports |
| Number of Ports | 2 |
| Operating System | ZyNOS |
| Other Special Features of the Product | Advanced Telephony Features, PBX Compatibility |
| UPC | 088022106511 080850268973 803983025721 086000110284 724580611943 807320382829 |

## Product Details

- **Brand:** YEASTAR
- **Compatible devices:** Laptop, Personal Computer, Smartphone, Tablet
- **Frequency band class:** Dual-Band
- **Model name:** YEASTAR YST-O2-2 FXO Ports
- **Special features:** Advanced Telephony Features, PBX Compatibility

## Images

![TeleDynamics YEASTAR YST-O2-2 FXO Ports O2 Module, 2 FXO Ports - 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

### ⭐⭐⭐⭐⭐ Needed with the Yeastar P550 to connect PSTN lines
*by B***. on 28 September 2025*

Works as expected. Easy to install.

### ⭐⭐⭐⭐⭐ Great product and works perfectly
*by M***I on 20 May 2025*

Product is exactly as stated in the page. It is correct and in perfect condition. I tried it and ita working perfectly. Got it for 235 AED which is the best price you can get this piece anywhere on the net. Highly recommended

### ⭐ Review
*by B***R on 29 June 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.

## 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.tn/products/269711580-teledynamics-yeastar-yst-o2-2-fxo-ports-o2-module-2](https://www.desertcart.tn/products/269711580-teledynamics-yeastar-yst-o2-2-fxo-ports-o2-module-2)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-21*