What data rates does the SFP-25GMLR-31 module support?

It is a dual-rate transceiver that supports both 10Gbps (10GBASE-LR) and 25Gbps (25GBASE-LR) Ethernet speeds.

Can this transceiver be used with multi-mode fiber cabling?

No, it is designed strictly for single-mode fiber (SMF) infrastructure using a 1310nm laser wavelength.

Does the SFP-25GMLR-31 module support troubleshooting loopback functions?

Yes, it supports both optical and electrical loopback functions to simplify link diagnostics and system testing.

Can I hot-swap this module while the switch is powered on and handling traffic?

Yes, the transceiver is completely hot-swappable, allowing you to insert or remove it without interrupting operations on neighboring ports.

Can this module operate directly with an eCPRI wireless protocol for high-speed distributed antenna system cellular backhaul?

Yes, the dual-rate architecture fully supports eCPRI protocol options, providing the high-speed signaling required for modern cellular base station infrastructure.

Will this optical transceiver module drop connection frames if our single-mode fiber runs through multiple patch panels over 7km?

The module's 1310nm optical transmitter is engineered with a robust power budget designed to absorb real-world link attenuation. As long as your total link loss—including fiber attenuation and patch panel insertion losses—remains within the standard specification limits, the module will maintain a stable, error-free connection.

Our high-performance computing (HPC) cluster suffers from packet loss under full load. What is the Bit Error Rate on this SFP28 module?

This module achieves a premium Bit Error Rate (BER) baseline of less than 10⁻¹². It guarantees zero packet drops during heavy continuous line-rate bursts.

Does the LS-SM3125E-10C optical module support both 25G Ethernet (25GBASE-LR) and 10G Ethernet (10GBASE-LR) protocols?

Yes, this is a native dual-rate SFP28 optical module that fully supports both 10G and 25G line rates, making it ideal for legacy infrastructure migrations.

What is the typical power consumption per port when running a 25G link over a long 10km dark fiber haul?

The module is highly energy efficient, drawing under 1.2W of power even under maximum data traffic stress. This helps maintain low server room cooling costs.

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Intel SFP-25GMLR-31 Compatible LINK-PP 10/25G SFP28 Dual-Rate 1310nm 10km Duplex LC/UPC DOM SMF Optical Transceiver Module

Name: Intel SFP-25GMLR-31 Compatible LINK-PP 10/25G SFP28 Dual-Rate 1310nm 10km Duplex LC/UPC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 214557
Price: 34.194 USD
Availability: InStock
Rating: 4.9 (28 reviews)

# 214557

Product: Intel SFP-25GMLR-31 Compatible LINK-PP 10/25G SFP28 Dual-Rate 1310nm 10km Duplex LC/UPC DOM SMF Optical Transceiver Module
SKU: 214557
P/N: LS-SM3125E-10C
Price: $ 39.76
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Product URL: https://www.l-p.com/products/493984.htm

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Compatible:: Cisco; LINK-PP; Broadcom; Intel; Mellanox

Compatible P/N:: SFP-25GLRL-31-I | 2km; E25GSFP28LRX | 10km; SFP-25GMLR-31 | 10km; SFP-25GELR-31-I | 20km; SFP-25GER-31 | 40km

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Intel SFP-25GMLR-31 Compatible LINK-PP 10/25G SFP28 Specifications

SFP-25GMLR-31 serves as a versatile 10/25G dual-rate SFP28 transceiver module, engineered to bridge distances up to 10km over single-mode fiber via a duplex LC/UPC interface, all while capping its power envelope at a modest 1.2W and offering real-time health insights through digital optical monitoring (DOM).

Intel Part Number	SFP-25GMLR-31	Vendor Name	LINK-PP
Form Factor	SFP28	Max Data Rate	25.78Gbps
Wavelength	1310nm	Max Cable Distance	10km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-8 to +3dBm	RX Power	-14 to +3dBm
Receiver Sensitivity	＜-13dBm	Receiver Overload	2dBm
Operating Temperature Range	0 to 70°C	Protocols	SFF-8472, SFF-8024, SFF-8431, SFF-8432, CEI-28G-VSR

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Q: Can this module operate directly with an eCPRI wireless protocol for high-speed distributed antenna system cellular backhaul? By B***h on 2026-03-17

A: Yes, the dual-rate architecture fully supports eCPRI protocol options, providing the high-speed signaling required for modern cellular base station infrastructure. By admin on 2026-03-18
Q: Will this optical transceiver module drop connection frames if our single-mode fiber runs through multiple patch panels over 7km? By E***s on 2026-01-05

A: The module's 1310nm optical transmitter is engineered with a robust power budget designed to absorb real-world link attenuation. As long as your total link loss—including fiber attenuation and patch panel insertion losses—remains within the standard specification limits, the module will maintain a stable, error-free connection. By admin on 2026-01-06
Q: Our high-performance computing (HPC) cluster suffers from packet loss under full load. What is the Bit Error Rate on this SFP28 module? By C***m on 2025-11-20

A: This module achieves a premium Bit Error Rate (BER) baseline of less than 10⁻¹². It guarantees zero packet drops during heavy continuous line-rate bursts. By admin on 2025-11-21
Q: Does the LS-SM3125E-10C optical module support both 25G Ethernet (25GBASE-LR) and 10G Ethernet (10GBASE-LR) protocols? By A***s on 2025-11-07

A: Yes, this is a native dual-rate SFP28 optical module that fully supports both 10G and 25G line rates, making it ideal for legacy infrastructure migrations. By admin on 2025-11-08
Q: What is the typical power consumption per port when running a 25G link over a long 10km dark fiber haul? By D***r on 2025-09-24

A: The module is highly energy efficient, drawing under 1.2W of power even under maximum data traffic stress. This helps maintain low server room cooling costs. By admin on 2025-09-25

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N***n

India

Verified Purchase

5 .0

2026-04-29

Needed a reliable 1310nm 10km 10/25G dual-rate transceiver for a new office building cross-connect. These SMF duplex LC optics delivered clean signals over a 6km span. Latency is non-existent, and the price point beats OEM by a mile.

106 Helpful vote Comments

Q***y

Austria

Verified Purchase

5 .0

2026-04-10

Replaced some generic 10G optics with these dual-rate 10/25G transceivers to future-proof our server racks. The broad protective packaging kept them safe during transit. Immediate link synchronization.

47 Helpful vote Comments

M***n

United Arab Emirates

Verified Purchase

5 .0

2026-02-10

Excellent dual-rate SFP28 optics. Solved our 10G to 25G migration bottleneck.

85 Helpful vote Comments

C***h

Nepal

Verified Purchase

4 .0

2026-02-10

Modules sync up immediately at both 10G and 25G line rates. The delivery took an extra day to clear customs at the border. Product quality is excellent, very stable inside our switches.

25 Helpful vote Comments

U***m

Turkey

Verified Purchase

5 .0

2026-02-02

Highly reliable duplex LC/UPC transceivers. The dual-rate capability makes hot-swapping between old 10G line cards and new 25G infrastructure seamless. No manual port overriding required.

58 Helpful vote Comments

X***l

Belarus

Verified Purchase

5 .0

2025-12-08

Deployed these transceiver modules across our metropolitan area network (MAN) segments to connect local government offices. The 1310nm single-mode architecture is perfect for our existing dark fiber assets. We monitored the thermal output inside our edge cabinets over a two-week heatwave, and the operating metrics stayed well within safe margins. The dual-rate flexibility saved our budget because we could deploy them on legacy 10G ports today and remotely flip the ports to 25G next month during our scheduled core upgrade. Excellent engineering and robust internal microcontrollers.

139 Helpful vote Comments

P***r

Indonesia

Verified Purchase

5 .0

2025-11-06

Our ISP startup relies on cost-effective components. These 25G SFP28 modules have been active for 2 months straight under heavy load. Zero frame drops and rock-solid TX/RX power consistency.

79 Helpful vote Comments

V***y

Ukraine

Verified Purchase

5 .0

2025-07-16

Solid construction and precise optical alignment. We noticed immediate stability on a noisy fiber run where older optics kept flapping. Definite improvement in signal-to-noise ratio.

99 Helpful vote Comments

Z***h

Cambodia

Verified Purchase

5 .0

2025-06-24

Our university IT department ordered these for a high-performance computing (HPC) cluster interconnect linking several storage arrays to the computing nodes. The 25G SFP28 architecture provides the necessary bandwidth to eliminate storage bottlenecks during massive dataset rendering. DDM tracking confirms stable TX power across all channels, and the duplex LC/UPC connection maintains low insertion loss. Having a reliable 10/25G dual-rate option means our legacy storage nodes can coexist on the same fiber framework as our brand-new compute racks without needing different transceiver SKUs.

115 Helpful vote Comments

M***n

Hong Kong

Verified Purchase

5 .0

2024-05-30

I feel your customer service is more reliable than other online shops.

50 Helpful vote Comments

M***i

United States

Verified Purchase

5 .0

2024-05-16

Very happy with the speed of delivery, unlike others, and accuracy of order. Will buy from them again.

21 Helpful vote Comments

D***n

Bangladesh

Verified Purchase

5 .0

2024-04-13

They have gained my trust and I would recommend them to anyone. Btw, I will be back to purchase again.

42 Helpful vote Comments

S***y

Japan

Verified Purchase

5 .0

2024-02-14

The price is reasonable. I always save money when I shop with l-p.com.

46 Helpful vote Comments

P***i

South Africa

Verified Purchase

5 .0

2023-12-19

The 10/25/40G Transceiver Modules and service has been great, we have enjoyed good performance. Response at times is a little slow.

44 Helpful vote Comments

W***d

Macao

Verified Purchase

5 .0

2023-10-16

Inexpensive, quick, and correct.

47 Helpful vote Comments

t***m

Malaysia

Verified Purchase

5 .0

2023-10-15

Nothing to complain, except the slow delivery. Hope it would be Faster the next time.

43 Helpful vote Comments

A***h

Sweden

Verified Purchase

5 .0

2023-10-01

This product is very good

56 Helpful vote Comments

A***u

Malaysia

Verified Purchase

5 .0

2023-09-01

I finally decide to give LINK-PP Ethernet port a try, since they are not as expensive as an original module. The result makes me very satisfied. They work well with very low insertion loss on our equipment, and the connection is also very firm.

48 Helpful vote Comments

Y***p

France

Verified Purchase

5 .0

2023-08-17

Very good for the price and durable enough for home use.

41 Helpful vote Comments

S***n

United States

Verified Purchase

5 .0

2023-07-10

Fast delivery, got what I needed. Everything perfect. Thanks

50 Helpful vote Comments

B***y

United States

Verified Purchase

5 .0

2023-07-08

The product page was very easy to read, very well detailed, and professional in appearance.

17 Helpful vote Comments

P***s

Malaysia

Verified Purchase

5 .0

2023-05-19

Just what I ordered, good job!

48 Helpful vote Comments

I***u

Turkey

Verified Purchase

4 .0

2023-04-18

Excellent product selection, price, and expedited shipping. Meanwhile, the price is also very reasonable and affordable.

43 Helpful vote Comments

S***i

Nepal

Verified Purchase

5 .0

2023-03-04

Placed the order easily, very quick shipping. What's more, the price is much lower than the original, and the products are of the same or better quality. I'm a repeat buyer.

59 Helpful vote Comments

J***s

Canada

Verified Purchase

5 .0

2023-02-21

Good prices; prompt shipping.

49 Helpful vote Comments

R***n

Romania

Verified Purchase

5 .0