SKU: 75981079980

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

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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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4.8 ★★★★★
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A
Verified Purchase
AlterZgo
Pawtucket, US
★★★★★ 5
Best electric pepper and salt grinder for a very reasonable price!I
Color: 2-Speed Rechargeable Set with Base
I've spent over $200 on salt and pepper grinders including very pricey manual ones and a name brand electric grinder which was costly and had a weak motor. I bought these expensive grinders thinking I would get a quality product by spending more money. Well, it was a waste so I decided to try this highly rated Circle Joy grinder and, so far, it works incredibly well! The high/low speed works exactly as expected and at high speed, it grinds really fast. The motor is powerful and does not feel like it's going to give up even when grinding salt or pepper at high speed and on the fine setting. It is easy to refill, holds a long charge and just simply works. Buy this. You will not be disappointed... and say goodbye to having to wash your hands everytime you flip a raw piece of meat or chicken to salt and pepper when using a two hand manual grinder.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2025
L
Verified Purchase
Lisa Maurstad
West Palm Beach, US
★★★★★ 5
Solid product
Color: 2-Speed Rechargeable Set with Base
Really like these.
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Reviewed in the United States on May 13, 2026
R
Verified Purchase
RealPro
Bozeman, US
★★★★★ 4
Works well.
Color: 2-Speed Rechargeable Set with Base
Close to 5 stars. Only minor complaint is somewhat shorter battery life then expected. But since it is rechargeable, not a big deal. Like the adjustable grinder and the clear container so you can see how much it has.
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Reviewed in the United States on March 18, 2026
K
Verified Purchase
KJM
San Leandro, US
★★★★★ 5
Great salt and pepper set!
Color: 2-Speed Rechargeable Set with Base
Great salt and pepper set! I love that it has a light that makes it easier to see how much is coming out. Very easy to use, easy to fill, nice selection of grind sizes. It is also nice that it has a base to hold it because there is a very small amount of salt that comes off the bottom so it keeps it from going on the counter while not in use - it's not leaking, just leftover residue from the grind you have just finished.
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Reviewed in the United States on April 16, 2025
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Verified Purchase
Alexander
Waukegan, US
★★★★★ 1
They’re nice… if they work…
Color: 2-Speed Rechargeable Set with Base
I ordered four of these grinders and two of them broke down while a third never started up. I am honestly disappointed in the failure rate of these otherwise nice grinders. If only one grinder in a two-pack failed, I would’ve just taken it on the chin and moved on. But three out of four total is unacceptable. I like the way they look, and the grind speed and settings are nice. But there’s a serious durability problem they need to fix.
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Reviewed in the United States on August 24, 2025

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