What is the maximum transmission distance of the SFP-25G-SR-MM850?

It supports up to 100m over OM4 multi-mode fiber and 70m over OM3 MMF.

Can I use this module with single-mode fiber or APC connectors?

No, it is designed for multimode fiber with standard PC/UPC LC connectors; single-mode or APC will cause high loss and damage risk.

What is the typical power consumption of the SFP-25G-SR-MM850?

It consumes less than 3.3W under normal operating conditions.

Is the module MSA-compliant and interoperable with other brands?

Yes, it complies with SFP28 MSA and IEEE standards, ensuring interoperability with most MSA-compliant 25G switches and NICs.

Is the internal mechanical latch robust enough to handle frequent daily patch reconfigurations in a staging lab?

Yes, the secure Duplex LC bail latch mechanism is rigorously cycle-tested to ensure repeated clean connections without physical drift.

If our data center cooling system suffers a temporary failure, what is the maximum safe storage/idle temp threshold before internal optics degrade?

The transceiver housing can withstand non-operational storage temperatures ranging from -40°C up to 85°C without warping the internal optical array.

We have a critical cross-connect run that measures exactly 90m over OM4 fiber. Is that pushing the absolute edge of this optic's link budget?

Not at all, as long as your multi-mode fiber faces are clean and your patch panels are within normal insertion loss specs, it will hold a flawless 25G link.

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H3C SFP-25G-SR-MM850 Compatible LINK-PP 25G SFP28 850nm 100m Duplex LC DOM MMF Optical Transceiver Module

Name: H3C SFP-25G-SR-MM850 Compatible LINK-PP 25G SFP28 850nm 100m Duplex LC DOM MMF Optical Transceiver Module
Brand: LINK-PP
SKU: 214095
Price: 17.08 USD
Availability: InStock
Rating: 5 (30 reviews)

# 214095

Product: H3C SFP-25G-SR-MM850 Compatible LINK-PP 25G SFP28 850nm 100m Duplex LC DOM MMF Optical Transceiver Module
SKU: 214095
P/N: LS-MM8525-S1C
Price: $ 19.86
Stock: 8918 in Stock
Sold: 1.1K
Product URL: https://www.l-p.com/products/473148.htm

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: H3C SFP-25G-SR-MM850 Compatible LINK-PP 25G SFP28 850nm 100m Duplex LC DOM MMF Optical Transceiver Module

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Compatible:: Cisco; LINK-PP; Arista; Avago; Brocade; Chelsio; DELL; Edge-Core; FS; H3C; HPE Aruba; HPE BladeSystem; HPE H3C; HW; IBM; Intel; Juniper; Mellanox; NETGEAR; Ubiquiti

Compatible P/N:: SFP-25G-SR-MM850 | 100m; SFP-25G-SR-MM850-I | 100m

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H3C SFP-25G-SR-MM850 Compatible LINK-PP 25G SFP28 Specifications

SFP-25G-SR-MM850 is a hot-pluggable 25GBASE-SR SFP28 optical transceiver utilizing an 850nm VCSEL transmitter and PIN receiver to deliver a deterministic 25Gbps line rate across optical transport distances of up to 70m over OM3 or 100m over OM4 multi-mode fiber.

H3C Part Number	SFP-25G-SR-MM850	Vendor Name	LINK-PP
Form Factor	SFP28	Max Data Rate	25.7813Gbps
Wavelength	850nm	Max Cable Distance	100m@OM4/70m@OM3
Connector	Duplex LC	Media	MMF
Transmitter Type	VCSEL	Receiver Type	PIN
Power Consumption	≤3.3W	Extinction Ratio	>2dB
DDM/DOM	Supported	Operating Temperature Range	0°C to +70°C
TX Power	-8.4~2.4dBm	Minimum Receiver Power	＜-10.3dBm
Powerbudget	1.9dB	Receiver Overload	2.4dBm
DDM/DOM	Supported	FEC Function	Support RS-FEC, FC FEC
Protocols	SFF-8472, SFF-8024, SFF-8431, SFF-8432	Warranty	5 Years

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Q: Is the internal mechanical latch robust enough to handle frequent daily patch reconfigurations in a staging lab? By U***l on 2026-04-22

A: Yes, the secure Duplex LC bail latch mechanism is rigorously cycle-tested to ensure repeated clean connections without physical drift. By admin on 2026-04-23
Q: If our data center cooling system suffers a temporary failure, what is the maximum safe storage/idle temp threshold before internal optics degrade? By W***n on 2025-11-21

A: The transceiver housing can withstand non-operational storage temperatures ranging from -40°C up to 85°C without warping the internal optical array. By admin on 2025-11-22
Q: We have a critical cross-connect run that measures exactly 90m over OM4 fiber. Is that pushing the absolute edge of this optic's link budget? By A***y on 2025-03-08

A: Not at all, as long as your multi-mode fiber faces are clean and your patch panels are within normal insertion loss specs, it will hold a flawless 25G link. By admin on 2025-03-09

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J***l

Ireland

Verified Purchase

5 .0

2026-04-07

These modules are doing a fantastic job handling heavy virtualization traffic across our NVMe-over-Fabrics setup. The 850nm VCSEL laser holds up under high duty cycles. No CRC errors on the interfaces since deployment. Delivery to Ireland was fast, too.

117 Helpful vote Comments

C***l

Malaysia

Verified Purchase

5 .0

2026-02-05

These SFP28 850nm LC modules are exactly what our IT infrastructure team needed for the new cluster deployment. The price is unmatched for the level of DOM telemetry you get. Zero compatibility alerts on our NICs.

19 Helpful vote Comments

A***w

Macao

Verified Purchase

5 .0

2025-12-11

Upgraded our storage area network (SAN) from 10G to 25G using these LS-MM8525-S1C optical transceivers. The difference in throughput is night and day. No overheating issues in our standard 0-70°C commercial environment. clean and stable.

36 Helpful vote Comments

K***n

South Africa

Verified Purchase

5 .0

2025-10-30

Solid 25G line rate across our campus backbone distribution layers.

12 Helpful vote Comments

F***d

Hong Kong

Verified Purchase

5 .0

2025-10-03

Perfect fit for our data center leaf-spine architecture. 25G rate is stable, with low heat generation, and DOM readings are fully integrated into our SNMP monitoring dashboard. Very happy with this purchase.

48 Helpful vote Comments

R***g

Argentina

Verified Purchase

5 .0

2025-09-05

Cheap 25G SFP28 optics that actually deliver full bandwidth without running hot.

32 Helpful vote Comments

D***y

Thailand

Verified Purchase

5 .0

2025-08-19

Great commercial-grade 25G SFP28 transceivers. They pull minimal power, keeping our switch chassis cool. The duplex LC connector structure is robust and hasn't loosened despite multiple patch reconfigurations during testing.

52 Helpful vote Comments

D***e

Morocco

Verified Purchase

5 .0

2025-07-26

Needed some affordable 25G multi-mode fiber 100m links for a new office floor deployment. LINK-PP delivered exactly what we needed. Passed all our Iperf3 stress tests over a 48-hour continuous burn-in. Solid build quality.

73 Helpful vote Comments

J***y

Cambodia

Verified Purchase

5 .0

2025-06-21

Bought a batch of these LS-MM8525-S1C 25GBASE-SR modules for a Core-to-Aggregation link upgrade in our Chicago office. They hit full 25G speeds over 85m of OM4 fiber without any fuss. The built-in DOM allows real-time diagnostics on our Enterprise switches. Real lifesaver for the price!

106 Helpful vote Comments

L***i

Bulgaria

Verified Purchase

4 .0

2025-06-17

Modules perform exactly as advertised, hitting full 25G line rates over our 60m OM3 fiber runs. My only tiny complaint is that the pull-tab latches are a bit stiff on first insertion compared to our old 10G optics. They seat securely though, and DOM telemetry is perfect. Good budget choice.

16 Helpful vote Comments

B***g

Maldives

Verified Purchase

5 .0

2025-03-18

We use these in our high-density server racks. The short wavelength 850nm signal is clean, and the Duplex LC interface makes patching a breeze. Highly recommended for enterprise network engineers looking to save budget without compromising stability.

29 Helpful vote Comments

K***n

Hungary

Verified Purchase

5 .0

2025-02-09

We deployed these commercial-grade 25G SFP28 modules across our core network infrastructure to support an influx of high-bandwidth containerized applications. Operating inside an air-conditioned datacenter environment, these modules hold an optimal temperature profile, never exceeding 43°C even during peak traffic periods. The multi-mode fiber 100m capability allowed us to easily connect across adjacent rows of server racks without needing single-mode conversion. The Duplex LC physical connectors match perfectly with our high-quality patch cords, ensuring zero alignment loss. The DOM feature works cleanly out of the box with zero configuration needed. Very impressed with the engineering quality of these transceivers.

127 Helpful vote Comments

M***e

Finland

Verified Purchase

5 .0

2023-08-13

Wanted some Sfp Cage for business use. I had some issues about the item and give them a email, then received great advice and suggestions. No sales pressure at all. Very pleased with both the product and service from Link-pp.

16 Helpful vote Comments

J***M

United States

Verified Purchase

5 .0

2023-07-16

It’s compatible with my devices. Quality of your products & your support is very good. 5 Stars for everything.

44 Helpful vote Comments

K***i

Maldives

Verified Purchase

5 .0

2023-07-13

Received what I ordered in a timely manner. Products arrived well packed and in perfect condition.

33 Helpful vote Comments

C***n

Sweden

Verified Purchase

5 .0

2023-06-08

Always like to order network gear from you guys, awesome!

95 Helpful vote Comments

R***t

Taiwan, Province of China

Verified Purchase

5 .0

2023-05-20

Customer service is friendly and helpful. Price is charming. Quality is as expected.

96 Helpful vote Comments

E***a

Israel

Verified Purchase

5 .0

2023-04-29

Great products and prices, outstanding communication. Excellent warranties, too.

69 Helpful vote Comments

N***v

Brazil

Verified Purchase

5 .0

2023-04-16

Brilliant and easy way to select the most suitable Transceiver Modules for my Switches.

23 Helpful vote Comments

H***n

Canada

Verified Purchase

5 .0

2023-04-06

Very easy to order, very good web display and cheaper than others

43 Helpful vote Comments

M***n

South Africa

Verified Purchase

5 .0

2023-03-16

The item was as advertized and delivered Fast

47 Helpful vote Comments

I***v

United States

Verified Purchase

5 .0

2023-01-13

It worked the way it was supposed to

84 Helpful vote Comments

S***i

Spain

Verified Purchase

5 .0

2022-12-02

works fine.

54 Helpful vote Comments

j***a

United States

Verified Purchase

5 .0

2022-11-23

Good prices and value

49 Helpful vote Comments

J***t

Brunei Darussalam

Verified Purchase

5 .0

2022-07-23

Really quick to order and the customer service responded to me very quickly.

51 Helpful vote Comments

J***n

Israel

Verified Purchase

5 .0

2022-04-09

It’s not my first time dealing with this company but i’m just satisfied as usual.

84 Helpful vote Comments

A***l

Singapore

Verified Purchase

5 .0

2022-03-13

I have used the Chat process with other companies. I can't say enough good things about LINK-PP and their interactions with customers! Simply one of the best I have encountered!! A company with great service!

46 Helpful vote Comments

G***T

Thailand

Verified Purchase

5 .0

2022-02-11

The component worked - no hassle - and continues working. Nice so far.

18 Helpful vote Comments

W***n

Sweden

Verified Purchase

5 .0