TP-Link Gigabit Single-Mode SFP Transceiver (20km)
SKU: 75981079980

TP-Link Gigabit Single-Mode SFP Transceiver (20km)

Sale price$108.65 Regular price$120.72
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Description

TP-Link Gigabit Single-Mode SFP Transceiver (20km)Extend Your Network's Reach with High Performance Fiber Connectivity Unlock the power of long distance, high speed data transfer with the TP Link Gigabit SFP Module. Designed for single mode fiber optic applications, this transceiver can extend your network's reach up to an impressive 20 kilometers (12. 4 miles), making it an ideal solution for connecting distant buildings, campuses, and LANs. Experience reliable, gigabit speed connectivity that

Extend Your Network's Reach with High-Performance Fiber Connectivity

Unlock the power of long-distance, high-speed data transfer with the TP-Link Gigabit SFP Module. Designed for single-mode fiber optic applications, this transceiver can extend your network's reach up to an impressive 20 kilometers (12.4 miles), making it an ideal solution for connecting distant buildings, campuses, and LANs. Experience reliable, gigabit-speed connectivity that overcomes the limitations of standard copper cabling.

Seamless Integration and Broad Compatibility

The TP-Link SM311LS is engineered for maximum flexibility and ease of use. Its hot-pluggable design allows for installation and removal without powering down your network equipment. Compliant with the Small Form Pluggable Multi-Source Agreement (SFP-MSA), this module ensures compatibility with a wide range of TP-Link JetStream switches and media converters, as well as other MSA-compliant devices. The inclusion of Digital Diagnostic Monitoring (DDM) provides real-time monitoring of the transceiver's status for enhanced network management.

Reliable Performance in Demanding Environments

Built to last, this SFP module operates effectively in a commercial temperature range of 0 to 70°C (32 to 158°F). It adheres to IEEE 802.3z standards and is certified by FCC and CE for safety and emission, ensuring dependable performance and peace of mind. The LC duplex port provides a secure and standardized connection for your single-mode fiber cables.

Hardware Features
DDM Yes
SFP-MSA Yes
Hot Swappable Yes
Media Converter & Module
Standards and Protocols IEEE 802.3z, TCP/IP
Wave Length 1310 nm
Power Supply 3.3V
Fiber Type 9/125 μm Single-Mode Fiber
Max. Cable Length 20 KM
Data Rate 1.25Gbps
Port Type LC Duplex
General
Dimensions (W*D*H) 2.2*0.6*0.5 in (55.4*14.6*12.9 mm)
Safety & Emission FCC, CE
Package Contents SFP Module SM311LS, Installation Guide
Environment
Operating Temperature 0–70 °C (32–158 °F)
Storage Temperature -40–85 °C (-40–185 °F)
Operating Humidity 10–90% RH, Non-Condensing
Storage Humidity 5–90% RH, Non-Condensing
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 75981079980

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Paige
Whiting, US
★★★★★ 5
Great for potty training
Size: 3T-4T, Unit Count: 20
We really like these pull ups and they have worked well for us during potty training. They are easy to pull on and off, which is great for toddlers who are learning to be more independent. They fit well and do a good job containing messes without leaking. I also like that they feel comfortable and not too bulky, so my child can move around easily. Overall, these have been a reliable option for us and something we continue to use during this stage.
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Reviewed in the United States on May 3, 2026
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ape
Charlottesville, US
★★★★★ 5
Preferred by daycare teachers!
Size: 4T-5T, Unit Count: 99
Preferred by daycares because they open and close on the sides and kids can learn to pull on and take on on their own
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Reviewed in the United States on April 9, 2026
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Michelle E.
West Palm Beach, US
★★★★★ 4
Nice
Size: 3T-4T, Unit Count: 112
Good pull ups, it could get a little linty but it fits perfectly on my toddler. It stretches which I love. I do love how I could strap and unstrap the sides of the pull up. The designs on the pull up are cute. It holds a lot of pee and soaks it up very well. It’s comfortable on my toddler and the pee and poop doesn’t leak out of it. It is worth the money.
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Reviewed in the United States on November 18, 2025
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The Prime Perspective
Draper, US
★★★★★ 5
The Fast & the Curious- Potty Drift
Size: 5T-6T, Unit Count: 60
Who knew toddler potty training required both a PhD in fluid dynamics and Jedi mind tricks? These Pull-Ups prove the science part: leak-proof, absorbent, and surprisingly soft. The toddler-psychology part? That’s a battle of wills. Our little one was a die-hard fan of Huggies diapers—too loyal, in fact. We begged, we bribed, we pleaded: “Please, let’s move on!” Resistance was fierce. So we went stealth mode, sneaking Pull-Ups on at night like parents on a covert mission. Credit to mom—she cracked the code and finally got the kid interested in the toilet. Suddenly, the “potty rush” moments became less of a flood and more of a sprint. Diapers were too slow to peel off; Pull-Ups gave our little sprinter the speed boost they needed. They’re soft, rash-free, and practically leak-proof (unlike that other brand we don’t speak of). Pro tip: size up for easier toddler self-removal. The result? A drier, happier kid, less laundry for us, and the toilet finally earning MVP status. If you’re ready for your toddler to graduate from Diaper University, this is the diploma. Bonus: you’ll save money too.
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Reviewed in the United States on September 3, 2025
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Michelle Vincent
Louisville, US
★★★★★ 5
Mom of 3 recommend!
Size: 5T-6T, Unit Count: 14
I'm using these again for the 3rd time and they're great as always. My 3rd is still having some issues at night time with bed wetting, and as they get older the bigger the mess, so these truly hold up to a full bladder. And they don't smell by morning like some diaper brands. I'm usually against pull ups, but these are great for up and down ease of use and that added protection when it comes to potty training. I love the bigger size inclusion for larger children which we struggle with for comfort compared to other brands.
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Reviewed in the United States on February 14, 2026

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