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Description
Yeastar O2 Dual FXO Port ModuleExpand Your VoIP System with Reliable Analog Connectivity Seamlessly integrate traditional analog telephone lines into your modern VoIP PBX system with the Yeastar O2 Module. This powerful module equips your Yeastar S Series or P Series PBX with two FXO ports, allowing you to connect to two standard PSTN (POTS) lines. This is the ideal solution for businesses needing to maintain legacy phone lines for fax machines, alarm systems, or as a failover
Expand Your VoIP System with Reliable Analog Connectivity
Seamlessly integrate traditional analog telephone lines into your modern VoIP PBX system with the Yeastar O2 Module. This powerful module equips your Yeastar S-Series or P-Series PBX with two FXO ports, allowing you to connect to two standard PSTN (POTS) lines. This is the ideal solution for businesses needing to maintain legacy phone lines for fax machines, alarm systems, or as a failover backup, ensuring uninterrupted communication. The modular design allows for simple, plug-and-play installation, making it easy to expand your system's capabilities without significant downtime.
Key Features and Benefits:
- Dual FXO Ports: Instantly add two analog PSTN line connections to your Yeastar PBX.
- Broad Compatibility: Designed specifically for seamless operation with a wide range of Yeastar S-Series and P-Series VoIP PBX systems.
- Superior Call Quality: Features built-in echo cancellation to ensure clear, professional-sounding voice calls.
- Plug-and-Play Installation: The modular, mini-PCIe form factor allows for quick and easy installation into your compatible Yeastar device.
- Advanced Signaling Support: Supports multiple signaling modes, including Foreign Exchange Office, Foreign Exchange Station Defined Network, and PLAR for diverse connectivity scenarios.
Technical Specifications
| Feature | Specification |
|---|---|
| Ports | 2 x RJ11 FXO Ports |
| Termination | Analog PSTN (POTS) Lines |
| Compatible Systems | Yeastar S-Series (S20, S412, S50, S100, S300) and P-Series (P550, P560, P570) VoIP PBX. Also compatible with MyPBX series. |
| Echo Cancellation | Supported |
| Ring Frequency Detection | 15 ~ 50 Hz |
| Ring Voltage Detection | 30+ VRMS (dependent on FXO mode) |
| Signaling Modes | Foreign Exchange Office, Foreign Exchange Station Defined Network, Private Line Automatic Ringdown (PLAR) |
| Dimensions | 100 x 80 x 20 mm |
| Weight | 0.2 kg |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1139 reviews
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Product Reviews
★★★★★ 3
Soft but very thin
Color: 01 - White, Size: Full
Soft but very thin. Not sure these will last long. Didn’t realize how thin the were until I washed them. They do not come out of dryer wrinkle free. Not horrible but still wrinkled.
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Reviewed in the United States on December 31, 2025
★★★★★ 5
Ralph Lauren quality without the price!!
Very soft sheets!! Exceptional quality! Good fit and great value! Got them for my guest bed on queen.. but hubby slept in there a few nights due to his back hurting. Gonna get some for the master king bed this spring. These are Ralph Lauren quality! And that’s all I have on my bed until now! We are those strange people that like sheets to feel cool when you get into bed.. and these are!
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Reviewed in the United States on January 13, 2026
★★★★★ 1
Disappointed in quality
Poorly made and not good quality. I had high hopes for these sheets because I love the color. However, after only the second laundering the hem stitching on the pillowcases is actually coming undone. Sleep-quality wise, I found the sheets a little scratchy for sateen, and while we’d hoped they would “sleep cool”, that is not the case. Unfortunately I washed them so I’m unable to return. They’ll go to the end of the line for rotation in emergencies only.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Good quality
Color: 01 - White, Size: Queen
I've had trouble with other all organic bedding on Amazon but this worked out. It did shrink a bit but it's cotton so it's supposed to do that. And it still fits on my bed pretty well so no complaints.
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Reviewed in the United States on March 21, 2026
★★★★★ 4
Not quite “Hotel” quality
3.5 stars.
My initial impressions are the followng:
- Definitely not “Hotel” quality construction. I found these a bit thin and poorly stitched/constructed compared to what one would expect of hotel quality linens .
- I doubt these are 500tc. They feel very flimsy, if I had to guess based on weight and feel alone I would assume 300tc at best.
- Washing does make them softer as is typical with sateen which I would recommend before use as they feel like Polyester right out of the bag. Wash before use.
- Color was interesting, not quite as expected. The grey/blue sheets have a seafoam green tint. Not bothersome enough for me to return.
- They feel cool to the touch and should keep one comfortable while sleeping. I will update my review if that is not the case.
Overall these are good sheets, but they are definitely not great/hotel quality. I’m keeping the ones I got for my children/guest rooms but will return mine as I really do want a higher quality sheet.
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Reviewed in the United States on March 28, 2026