Is the pull-tab robust enough to handle frequent hot-swapping during active datacenter maintenance cycles?

Yes, the high-strength structural pull-tab is specifically engineered to endure repeated extraction cycles in high-density rack configurations.

Can I patch this 25G optical transceiver directly into an existing multi-mode OM3/OM4 fiber infrastructure?

No, this module requires single-mode fiber to operate correctly; attempting to use multi-mode fiber will result in severe signal loss.

Does this 25G SFP28 optical module support real-time digital diagnostic monitoring via standard SNMP?

Yes, it features full DDM/DOM compliance per SFF-8472, allowing you to monitor real-time temperature, supply voltage, laser bias current, and optical power via your network management software.

Will a complete fiber polarity error (reversed Tx/Rx strands) show up in our software as an uneven optical power alert?

No, a full polarity crossover results in a complete Loss of Signal (LOS) across all channels, shifting the interface status directly to link-down.

We need to purchase 500 pieces of these 2km 25G QSFP28 optical transceivers for a data center overhaul. Do you offer bulk order discounts?

Yes, we offer tiered wholesale pricing and customized quotes for volume corporate orders; please contact our sales support team directly.

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LINK-PP LS-SM3125-02C 25G SFP28 1310nm 2km Duplex LC/UPC DOM SMF Optical Transceiver Module

Name: LINK-PP LS-SM3125-02C 25G SFP28 1310nm 2km Duplex LC/UPC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 202186
Price: 24.94 USD
Availability: InStock
Rating: 4.9 (18 reviews)

# 202186

Product: LINK-PP LS-SM3125-02C 25G SFP28 1310nm 2km Duplex LC/UPC DOM SMF Optical Transceiver Module
SKU: 202186
P/N: LS-SM3125-02C
Price: $ 29
Stock: 120 in Stock
Sold: 880
Product URL: https://www.l-p.com/products/491665.htm

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Manufacture: LINK-PP

P/N: LS-SM3125-02C

Compatible:: LINK-PP

Compatible P/N:: LS-SM3125-02C | 2km; LS-SM3125-02I | 2km; LS-SM3125-10C | 10km; LS-SM3125-10I | 10km; LS-SM3125E-10C | 10km; LS-SM3125E-10E | 10km; LS-SM3125E-10I | 10km; LS-SM3125-20C | 20km; LS-SM3125-20I | 20km; LS-SM3125-30C | 30km; LS-SM3125-30I | 30km; LS-SM3125-40C | 40km; LS-SM3125-40I | 40km

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LINK-PP LS-SM3125-02C 25G SFP28 Specifications

LS-SM3125-02C defines a 25G SFP28 optical transceiver that operates at 1310nm over duplex LC/UPC-terminated single-mode fiber, delivering error-free transmission up to 2km while incorporating real-time DOM diagnostics for precise link monitoring.

LINK-PP Part Number	LS-SM3125-02C	Vendor Name	LINK-PP
Form Factor	SFP28	Max Data Rate	25.78Gbps
Wavelength	1310nm	Max Cable Distance	2km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
Tx Power	8 to +3dBm	Rx Power	-14 to +3dBm
Receiver Sensitivity	-13.3dBm	Operating Temperature range	0°C to +70°C
Protocols	MSA Compliant, CPRI, eCPRI	Warranty	5 Years

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Q: Is the pull-tab robust enough to handle frequent hot-swapping during active datacenter maintenance cycles? By B***y on 2026-04-21

A: Yes, the high-strength structural pull-tab is specifically engineered to endure repeated extraction cycles in high-density rack configurations. By admin on 2026-04-22
Q: Can I patch this 25G optical transceiver directly into an existing multi-mode OM3/OM4 fiber infrastructure? By D***e on 2026-01-29

A: No, this module requires single-mode fiber to operate correctly; attempting to use multi-mode fiber will result in severe signal loss. By admin on 2026-01-30
Q: Does this 25G SFP28 optical module support real-time digital diagnostic monitoring via standard SNMP? By C***d on 2025-11-04

A: Yes, it features full DDM/DOM compliance per SFF-8472, allowing you to monitor real-time temperature, supply voltage, laser bias current, and optical power via your network management software. By admin on 2025-11-05
Q: Will a complete fiber polarity error (reversed Tx/Rx strands) show up in our software as an uneven optical power alert? By E***n on 2025-08-11

A: No, a full polarity crossover results in a complete Loss of Signal (LOS) across all channels, shifting the interface status directly to link-down. By admin on 2025-08-12
Q: We need to purchase 500 pieces of these 2km 25G QSFP28 optical transceivers for a data center overhaul. Do you offer bulk order discounts? By A***y on 2025-03-13

A: Yes, we offer tiered wholesale pricing and customized quotes for volume corporate orders; please contact our sales support team directly. By admin on 2025-03-14

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L***m

Turkey

Verified Purchase

5 .0

2026-05-11

Deployed these 25G SFP28 modules in an air-conditioned indoor data center environment. They run cool and stable. 1310nm single-mode fiber standard is definitely the sweet spot for modern enterprise backbones.

102 Helpful vote Comments

B***e

United Kingdom

Verified Purchase

5 .0

2026-04-05

Reliable 1310nm single-mode 25G SFP28 modules, zero CRC errors so far.

42 Helpful vote Comments

D***m

France

Verified Purchase

5 .0

2026-02-28

Using for our 25G enterprise core upgrade, flawless performance.

85 Helpful vote Comments

N***n

Netherlands

Verified Purchase

5 .0

2026-02-10

We recently upgraded our enterprise campus core network from 10G to a 25G SFP28 infrastructure using 100 units of the LINK-PP LS-SM3125-02C optical module. We deployed them on our switches, and they were recognized instantly without any issues. Over a 2km single-mode fiber run using standard Duplex LC cords, the real-time DDM metrics stayed completely stable. Under a heavy 72-hour stress test, we observed zero packet drops or CRC errors. This commercial-grade 1310nm transceiver is an excellent, cost-effective choice for modern server room upgrades.

96 Helpful vote Comments

G***n

Australia

Verified Purchase

5 .0

2026-01-15

Needed a budget-friendly 25G solution for our basestation backhaul pilot. These SFP28 modules connected seamlessly over 1.5km of single-mode fiber. Latency is rock solid under full load testing.

97 Helpful vote Comments

Q***n

United States

Verified Purchase

4 .0

2026-01-04

Product is outstanding — zero packet loss on our 25G single-mode fiber link. However, delivery to our East Coast server room was delayed by two days due to a customs clearance hitch. Order well in advance if you have strict deployment timelines.

20 Helpful vote Comments

K***n

Republic of Korea

Verified Purchase

5 .0

2025-12-04

Highly impressed with the build quality. The pull-tab mechanism feels durable, which matters when you're swapping modules in a cramped 42U rack. Outstanding 25G single-mode optical module.

65 Helpful vote Comments

A***n

United States

Verified Purchase

5 .0

2025-11-12

Exactly 2km reached with stable DDM readings.

60 Helpful vote Comments

H***y

India

Verified Purchase

5 .0

2025-10-09

Upgraded our distribution layers from 10G to 25G SFP28 using these single-mode 1310nm 2km optics transceivers. Perfect choice for mid-range campus links where 850nm SR module just can't reach. Zero packet loss over 48 hours of stress testing.

116 Helpful vote Comments

P***m

Norway

Verified Purchase

5 .0

2025-09-30

Running a busy colocation data center means we need optical modules that can handle high-density setups without failing. We bought a large batch of these LINK-PP 25G SFP28 transceiver modules for a client's storage network over single-mode fiber. The compatibility profile is outstanding, as they configured perfectly with our switches at a full line rate of 25.78Gbps. The thermal dissipation is highly efficient, preventing hot spots in cramped 1U servers. They meet every standard required for our network infrastructures.

133 Helpful vote Comments

I***h

Brazil

Verified Purchase

5 .0

2025-08-22

Solid commercial temperature rating (0°C to 70°C). Our indoor server racks fluctuate during summer but these modules keep their cool and maintain a full 25.78Gbps line rate throughput.

63 Helpful vote Comments

E***d

Japan

Verified Purchase

5 .0

2025-08-21

1310nm 2km optical transceiver module doing exactly what it's built for.

59 Helpful vote Comments

O***n

Sweden

Verified Purchase

5 .0

2025-07-19

For our regional basestation backhaul network upgrade, finding reliable 25G transceivers that comply strictly with open standards was our top priority. We selected this 1310nm 2km 25G SFP28 module for our indoor aggregation equipment. Our on-site technicians highly appreciated the strong build quality; the Duplex LC interface provides a secure click that stays stable against rack vibrations. The DOM digital diagnostics easily export real-time temperature and power data to our monitoring dashboard. Even when the server rack gets hot, these modules keep running smoothly without overheating.

121 Helpful vote Comments

J***w

Mexico

Verified Purchase

5 .0

2025-06-14

Excellent value for 25G enterprise campus optical transceivers. We ran them through a fiber patch panel across three floors — Duplex LC connector snugness is top-tier. No loose connections.

102 Helpful vote Comments

F***k

Canada

Verified Purchase

5 .0

2025-05-03

Deployed 50 of these LS-SM3125-02C 25G SFP28 modules across our main corporate campus fiber network. They are drawing very low power and DOM metrics are spot on in our aggregation switches. Will buy more!

104 Helpful vote Comments

M***d

Russian Federation

Verified Purchase

5 .0

2025-04-27

Perfect for bulk deployment. Our procurement department loves the cost savings. We've replaced our expensive brand-name 2km 25G SFP28 optical transceivers with these, and performance is completely identical.

51 Helpful vote Comments

R***m

Finland

Verified Purchase

4 .0

2025-03-29

The optics themselves perform beautifully at 25Gbps line rate. However, international customs clearance held up the freight at the border for two days because the carrier filed the commercial invoice under the wrong tariff code. Give yourself a buffer week if you have a tight deployment deadline.

18 Helpful vote Comments

C***g

Germany

Verified Purchase

5 .0

2025-03-18

Fast shipping and perfect Duplex LC fit. (^-^)

118 Helpful vote Comments