How does the performance of these compare to original brand optics? Are they really just as good but cheaper?

You get the exact same core performance. Our transceivers use premium DFB lasers and PIN receivers, matching the strict hardware specs of OEM parts from Cisco, Juniper, or Dell. It’s a highly cost-effective alternative with absolutely zero compromise on signal integrity.

Can I use standard LC duplex multimode fiber with this module, or do I strictly need single-mode?

You must use Single-Mode Fiber (SMF) paired with an MPO-12/APC angled connector. This module relies on a 1310nm wavelength for up to 10km transmission, meaning standard LC multimode cables are neither physically nor optically compatible.

Our outdoor telecom cabinet gets extremely hot and cold. Is there an industrial wide-temperature version of this 10km module?

This specific LQ-M31100-LR4C operates at commercial temps (0°C to +70°C). While it handles indoor server rooms and standard cooling environments perfectly, for extreme outdoor conditions (-40°C to 85°C), please contact our support. We can custom-build industrial-grade SKUs for your specific cell site backhaul needs.

Will this 100G PSM4 QSFP28 play nice if I mix Cisco Nexus switches on one end and Arista on the other?

Yes, absolutely! The LQ-M31100-LR4C is fully MSA compliant and coded for seamless interoperability. You can comfortably bridge multi-brand setups like Cisco and Arista without getting annoying compatibility alarms on your CLI.

Does this module meet all standard industry protocols for 100G Ethernet?

Yes, it fully complies with QSFP28 MSA, IEEE 802.3bm 100GBASE PSM4, and SFF-8636 standards. It’s rigorously tested to ensure global regulatory and networking compliance across major hardware platforms.

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LINK-PP LQ-M31100-LR4C 100G PSM4 QSFP28 1310nm 10km MPO-12/APC DOM SMF Optical Transceiver Module

Name: LQ-M31100-LR4C
Brand: LINK-PP
SKU: 197889
Price: 406.56 USD
Availability: InStock
Rating: 5 (50 reviews)

# 197889

Product: LINK-PP LQ-M31100-LR4C 100G PSM4 QSFP28 1310nm 10km MPO-12/APC DOM SMF Optical Transceiver Module
SKU: 197889
P/N: LQ-M31100-LR4C
Price: $ 462
Stock: 1190 in Stock
Sold: 910
Product URL: https://www.l-p.com/products/488423.htm

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: LINK-PP LQ-M31100-LR4C 100G PSM4 QSFP28 1310nm 10km MPO-12/APC DOM SMF Optical Transceiver Module

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Compatible:: Cisco; LINK-PP; Arista; Brocade; Dell; Extreme; FS; Generic; H3C; Intel; Juniper; NVIDIA/Mellanox; Netgear

Compatible P/N:: LQ-M31100-FR4C | 2km; LQ-M31100-LR4C | 10km

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LINK-PP LQ-M31100-LR4C 100G QSFP28 Specifications

The LINK-PP LQ-M31100-LR4C is a high-performance 100G QSFP28 optical transceiver designed for parallel single-mode fiber connections. Utilizing PSM4 architecture, this commercial-grade module supports an aggregate data rate of up to 104Gbps. It offers exceptional reliability and port density, making it a cost-effective solution for advanced data center networking architectures.

LINK-PP Part Number	LQ-M31100-LR4C	Vendor Name	LINK-PP
Form Factor	QSFP28	Max Data Rate	104Gbps
Wavelength	1310nm	Max Cable Distance	10km
Connector	MPO-12/APC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
DDM/DOM	Supported	Operating Temperature Range	0°C to +70°C
Protocols	QSFP28 MSA, SFF-8636	Warranty	5 Years

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Q: How does the performance of these compare to original brand optics? Are they really just as good but cheaper? By A***n on 2026-06-03

A: You get the exact same core performance. Our transceivers use premium DFB lasers and PIN receivers, matching the strict hardware specs of OEM parts from Cisco, Juniper, or Dell. It’s a highly cost-effective alternative with absolutely zero compromise on signal integrity. By admin on 2026-06-03
Q: Can I use standard LC duplex multimode fiber with this module, or do I strictly need single-mode? By A***z on 2026-05-19

A: You must use Single-Mode Fiber (SMF) paired with an MPO-12/APC angled connector. This module relies on a 1310nm wavelength for up to 10km transmission, meaning standard LC multimode cables are neither physically nor optically compatible. By admin on 2026-05-19
Q: Our outdoor telecom cabinet gets extremely hot and cold. Is there an industrial wide-temperature version of this 10km module? By R***l on 2026-02-28

A: This specific LQ-M31100-LR4C operates at commercial temps (0°C to +70°C). While it handles indoor server rooms and standard cooling environments perfectly, for extreme outdoor conditions (-40°C to 85°C), please contact our support. We can custom-build industrial-grade SKUs for your specific cell site backhaul needs. By admin on 2026-02-28
Q: Will this 100G PSM4 QSFP28 play nice if I mix Cisco Nexus switches on one end and Arista on the other? By C***a on 2026-01-05

A: Yes, absolutely! The LQ-M31100-LR4C is fully MSA compliant and coded for seamless interoperability. You can comfortably bridge multi-brand setups like Cisco and Arista without getting annoying compatibility alarms on your CLI. By admin on 2026-01-05
Q: Does this module meet all standard industry protocols for 100G Ethernet? By R***n on 2025-09-22

A: Yes, it fully complies with QSFP28 MSA, IEEE 802.3bm 100GBASE PSM4, and SFF-8636 standards. It’s rigorously tested to ensure global regulatory and networking compliance across major hardware platforms. By admin on 2025-09-22

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A***l

Poland

Verified Purchase

5 .0

2026-06-10

Great for MAN core networks. The MPO-12/APC connectors snapped in perfectly without any hassle.

221 Helpful vote Comments

B***t

Thailand

Verified Purchase

5 .0

2026-05-26

Tested this 100GBASE-LR4 alternative across Juniper and Dell switches. Interoperability is top-notch! The 0-70C operating temperature easily handles our indoor server room environment with low 3.5W power draw.

174 Helpful vote Comments

S***l

Canada

Verified Purchase

5 .0

2026-04-09

We use these for high-density interconnects. The DFB transmitters are super reliable so far.

72 Helpful vote Comments

M***n

Colombia

Verified Purchase

5 .0

2026-03-27

Great DOM monitoring accuracy on these!

157 Helpful vote Comments

A***n

France

Verified Purchase

5 .0

2026-03-26

No complex multiplexing needed with this setup. Really simplifies our MAN core network architecture.

108 Helpful vote Comments

B***n

Ethiopia

Verified Purchase

5 .0

2026-03-10

Works exactly as expected. Fast shipping! ✈️

172 Helpful vote Comments

C***z

Egypt

Verified Purchase

5 .0

2026-02-27

Plug and play with Mellanox adapters.

44 Helpful vote Comments

J***t

Chile

Verified Purchase

5 .0

2026-02-06

Reliable connection for our data center.

66 Helpful vote Comments

M***t

Czech Republic

Verified Purchase

5 .0

2026-02-04

Smooth 10km MPO-12/APC link. No drops.

143 Helpful vote Comments

A***r

Spain

Verified Purchase

5 .0

2025-12-21

Fully compatible with our Arista gear. Real-time DOM monitoring is a lifesaver for ops.

124 Helpful vote Comments

C***z

Italy

Verified Purchase

5 .0

2025-12-06

We replaced overpriced OEM parts with these PSM4 QSFP28 modules for our telecom backhaul. Ribbon cable integration via MPO-12 is perfect. Absolutely zero packet loss after a month! (ง •_•)ง

88 Helpful vote Comments

K***e

Germany

Verified Purchase

5 .0

2025-11-30

Running these in an outdoor cabinet setup. Even approaching 70C during peak summer, the built-in DDM tracks temperatures perfectly. No signal degradation on our 10km single-mode fiber run. ☀️

212 Helpful vote Comments

E***s

Taiwan, Province of China

Verified Purchase

5 .0

2025-09-12

Deployed 50 of these LQ-M31100-LR4C modules for a 10km campus fiber backbone. DOM reads are highly accurate on our Cisco Nexus switches. Tx/Rx optical power remains perfectly stable at 1310nm.

181 Helpful vote Comments

K***g

Saudi Arabia

Verified Purchase

5 .0

2025-09-04

Good value SMF optical transceiver module.

125 Helpful vote Comments

L***g

United Arab Emirates

Verified Purchase

5 .0

2025-08-09

Best SMF optical transceiver for the price.

162 Helpful vote Comments

D***s

Panama

Verified Purchase

5 .0

2025-06-26

Upgraded our enterprise NAS to 100G. The SFF-8636 protocol support made integration completely seamless.

54 Helpful vote Comments

D***n

Portugal

Verified Purchase

5 .0

2025-05-29

Excellent bulk pricing for our IT procurement. 100G connectivity has never been this cost-effective.

214 Helpful vote Comments

K***n

United States

Verified Purchase

5 .0

2025-05-07

very competetive prices on all the items I have bought.

35 Helpful vote Comments

S***r

Singapore

Verified Purchase

5 .0

2025-05-07

Perfect PSM4 QSFP28 for our data center.

105 Helpful vote Comments

m***e

United States

Verified Purchase

5 .0

2025-04-23

Good value for the price; easy to order and checkout.

68 Helpful vote Comments

R***n

Viet Nam

Verified Purchase

5 .0

2025-04-15

The low power consumption is definitely a plus for our massive batch deployment needs.

92 Helpful vote Comments

W***t

Viet Nam

Verified Purchase

5 .0

2025-04-05

Solid 1310nm wavelength stability. Highly recommend!

216 Helpful vote Comments

S***s

Spain

Verified Purchase

5 .0

2025-04-01

Flawless Cisco compatible 100G module.

93 Helpful vote Comments

R***n

Dominican Republic

Verified Purchase

4 .0

2025-03-13

Customs clearance delayed my SMF optical transceivers for two days. Performance is solid though!

12 Helpful vote Comments

B***d

Belarus

Verified Purchase

5 .0

2025-03-10

Fast and reliable. I'd recommend them to anyone.

42 Helpful vote Comments

A***i

United Kingdom

Verified Purchase

5 .0

2025-02-04

my customer is very happy with these 10/25/40G Transceiver Modules\'s and they cost him a fraction of the price of Pulse\'s 10/25/40G Transceiver Modules

31 Helpful vote Comments

M***h

United States

Verified Purchase

5 .0

2025-01-06

The check out process is quick and easy.

29 Helpful vote Comments

B***n

United States

Verified Purchase

5 .0

2024-09-27

Great product and worked as expected, no issues reported after a month of use so far, highly recommend and will use their products again.

25 Helpful vote Comments

P***y

Turkey

Verified Purchase

5 .0

2024-09-26

l-p.com gave me all the 10/25/40G Transceiver Modules I was looking for, Will come back for more.

46 Helpful vote Comments

M***m

Nepal

Verified Purchase

5 .0

2024-08-23

Fast delivery, I will recommend it to my friends.

16 Helpful vote Comments

J***d

Canada

Verified Purchase

5 .0

2024-07-08

Delivery was Fast. Service was excellent and the Transceiver Module are perfect.

49 Helpful vote Comments

C***n

United States

Verified Purchase

5 .0

2024-07-05

Products were as described, packaged well and arrived promptly. And was a great deal.

13 Helpful vote Comments

S***r

Japan

Verified Purchase

5 .0

2024-07-02

Good service, efficient website. Will come back for more 1x1 Port SFP Cage.

40 Helpful vote Comments

B***h

Cambodia

Verified Purchase

5 .0

2024-06-08

very awesome thank you! they aim to fit your every need.

63 Helpful vote Comments

J***l

Finland

Verified Purchase

5 .0

2024-05-06

Can be totally compatible on my Product. Shippment is good.

68 Helpful vote Comments

E***g

United States

Verified Purchase

5 .0

2024-02-17

good place to shop great variety of products

32 Helpful vote Comments

M***e

Norway

Verified Purchase

5 .0

2024-02-12

Very knowledgeable, quick responses, very good prices and great customer service

22 Helpful vote Comments

M***s

Finland

Verified Purchase

5 .0

2024-01-21

I was kept well informed of the status of my order. It all arrived on the scheduled date and was in perfect condition. Can't wait to use it.

26 Helpful vote Comments

N***t

United States

Verified Purchase

5 .0

2023-12-12

This Optical Transceiver Modules works fine and no compatibility problem at all.

85 Helpful vote Comments

V***n

Philippines

Verified Purchase

5 .0

2023-11-25

Excellent and my favorite shop!

61 Helpful vote Comments

Verified Purchase

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LINK-PP LQ-M31100-LR4C 100G PSM4 QSFP28 1310nm 10km MPO-12/APC DOM SMF Optical Transceiver Module