Does this support OM3 and OM4 fiber, and what is the max run distance we can push?

Yes, it features a Duplex LC UPC interface explicitly designed for Multi-Mode Fiber (MMF). It perfectly supports OM2, OM3, and OM4 fiber types. You can reliably achieve gigabit data rates up to a 550-meter transmission distance over 850nm wavelengths, ideal for standard campus and warehouse fiber runs.

We are upgrading an entire campus network and need about 500 units of these 850nm SFPs. Do you guys offer any B2B bulk pricing tiers?

Yes, we definitely support enterprise deployments! We offer tiered wholesale discounts for large volume orders. Please reach out to our B2B sales team directly, and we’ll prepare a custom quote to help optimize your project budget.

Our enterprise strictly requires all network hardware to meet environmental and safety standards. Is this transceiver RoHS and ISO certified?

Yes, it is fully compliant with stringent industry standards. The LS-MM851G-S5I meets Directive (EU) 2015/863 of RoHS, holds ISO14001 environmental management certification, and satisfies Class I laser safety requirements, ensuring 100% compliance for corporate IT procurement.

Hey, we run a mixed rack of Cisco Catalyst and Ubiquiti EdgeSwitches. Will this LS-MM851G-S5I 1G module play nice without throwing unsupported transceiver errors?

Absolutely! These transceivers fully comply with the SFP Multi-Source Agreement (MSA). They are meticulously coded and tested to ensure seamless plug-and-play interoperability across all major switch brands like Cisco, Ubiquiti, Juniper, and Aruba without triggering any vendor-lock warnings.

We plan to deploy these in unventilated outdoor NEMA enclosures for cell tower backhaul. Can it handle extreme summer heat and winter freezing?

Definitely. This is a true industrial-grade optical transceiver designed for harsh environments. It supports an extended operating temperature range (from -40°C to 85°C), making it the perfect choice for outdoor cabinets, industrial IoT, and factory floors where standard commercial optics would fail.

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IBM SFP1G-SX-85-I Compatible LINK-PP 1G SFP 850nm 550m Duplex LC DOM MMF Optical Transceiver Module (Industrial)

Name: IBM SFP1G-SX-85-I Compatible LINK-PP 1G SFP 850nm 550m Duplex LC DOM MMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 224029
Price: 5.16 USD
Availability: InStock
Rating: 4.9 (19 reviews)

# 224029

Product: IBM SFP1G-SX-85-I Compatible LINK-PP 1G SFP 850nm 550m Duplex LC DOM MMF Optical Transceiver Module (Industrial)
SKU: 224029
P/N: LS-MM851G-S5I
Price: $ 6
Stock: 993 in Stock
Sold: 1.1K
Product URL: https://www.l-p.com/products/494200.htm

For Order Over $1000 Get $15.00 Off , Code: Linkpp15

For Order Over $3000 Get $50.00 Off , Code: Linkpp50

For Order Over $5000 Get $100.00 Off , Code: Linkpp100

New Users: $10 Coupon for Orders , Code: linkpp2610

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Manufacture: LINK-PP

P/N: LS-MM851G-S5I

Compatible:: Cisco; LINK-PP; Adtran; Alcatel-Lucent; Arista; Avaya; Brocade; Calix; Ciena; Dahua; Dell; Extreme; FS; Fortinet; Generic; H3C; HW; IBM; Intel; Juniper; Mikrotik; Moxa; NVIDIA/Mellanox; Netgear

Compatible P/N:: SFP1G-SX-85 | 550m; SFP1G-SX-85-I | 550m; SFP1G-SX-31 | 2km; SFP1G-SX-31-I | 2km

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IBM SFP1G-SX-85-I Compatible LINK-PP 1G SFP Specifications

The IBM SFP1G-SX-85-I Compatible LINK-PP module is an industrial-grade 1G SFP transceiver engineered for reliable Gigabit Ethernet over multi-mode fiber. Operating at an 850nm wavelength, it supports transmission distances up to 550 meters via duplex LC interfaces. This hot-pluggable module features digital optical monitoring (DOM) and thrives in harsh environments from -40°C to +85°C.

IBM Part Number	SFP1G-SX-85-I	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	850nm	Max Cable Distance	550m
Connector	Duplex LC	Media	MMF
Transmitter Type	VCSEL	Receiver Type	PIN
TX Power	-9 to 0dBm	RX Power	-20 to -1dBm
Receiver Sensitivity	-18dBm	DOM Support	Yes
Operating Temperature Range	-40 to 85°C	Protocols	IEEE 802.3z, SFF-8472, FC-PI, SFP MSA (INF-8074i) Compliant

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Q: Does this support OM3 and OM4 fiber, and what is the max run distance we can push? By J***s on 2026-05-07

A: Yes, it features a Duplex LC UPC interface explicitly designed for Multi-Mode Fiber (MMF). It perfectly supports OM2, OM3, and OM4 fiber types. You can reliably achieve gigabit data rates up to a 550-meter transmission distance over 850nm wavelengths, ideal for standard campus and warehouse fiber runs. By admin on 2026-05-07
Q: We are upgrading an entire campus network and need about 500 units of these 850nm SFPs. Do you guys offer any B2B bulk pricing tiers? By R***n on 2026-04-23

A: Yes, we definitely support enterprise deployments! We offer tiered wholesale discounts for large volume orders. Please reach out to our B2B sales team directly, and we’ll prepare a custom quote to help optimize your project budget. By admin on 2026-04-23
Q: Our enterprise strictly requires all network hardware to meet environmental and safety standards. Is this transceiver RoHS and ISO certified? By P***z on 2026-03-20

A: Yes, it is fully compliant with stringent industry standards. The LS-MM851G-S5I meets Directive (EU) 2015/863 of RoHS, holds ISO14001 environmental management certification, and satisfies Class I laser safety requirements, ensuring 100% compliance for corporate IT procurement. By admin on 2026-03-20
Q: Hey, we run a mixed rack of Cisco Catalyst and Ubiquiti EdgeSwitches. Will this LS-MM851G-S5I 1G module play nice without throwing unsupported transceiver errors? By C***e on 2026-01-12

A: Absolutely! These transceivers fully comply with the SFP Multi-Source Agreement (MSA). They are meticulously coded and tested to ensure seamless plug-and-play interoperability across all major switch brands like Cisco, Ubiquiti, Juniper, and Aruba without triggering any vendor-lock warnings. By admin on 2026-01-12
Q: We plan to deploy these in unventilated outdoor NEMA enclosures for cell tower backhaul. Can it handle extreme summer heat and winter freezing? By M***t on 2025-12-24

A: Definitely. This is a true industrial-grade optical transceiver designed for harsh environments. It supports an extended operating temperature range (from -40°C to 85°C), making it the perfect choice for outdoor cabinets, industrial IoT, and factory floors where standard commercial optics would fail. By admin on 2025-12-25

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B***n

Belgium

Verified Purchase

5 .0

2026-05-21

Easily pushed 500m over OM2. Great industrial 1G SFP 850nm module for the price.

54 Helpful vote Comments

W***e

Italy

Verified Purchase

5 .0

2026-04-20

Fast shipping to NY, perfect LC fiber interfaces!

183 Helpful vote Comments

J***n

Viet Nam

Verified Purchase

5 .0

2026-04-06

Fantastic OEM compatibility. Plugged right into our Juniper gear with zero vendor lock-in issues.

189 Helpful vote Comments

S***n

Poland

Verified Purchase

5 .0

2026-03-04

Deployed 50 of these LINK-PP LS-MM851G-S5I modules in our Berlin datacenter. Total lifesaver!

198 Helpful vote Comments

J***n

Austria

Verified Purchase

5 .0

2026-02-24

Awesome Cisco compatible 1G SFP, buying more soon.

46 Helpful vote Comments

M***s

Poland

Verified Purchase

5 .0

2026-02-18

SFF-8472 DOM works perfectly in our Mikrotik.

195 Helpful vote Comments

N***z

Viet Nam

Verified Purchase

5 .0

2025-11-18

Real-time DOM monitoring is a game changer for troubleshooting our campus fiber networking.

199 Helpful vote Comments

S***n

Italy

Verified Purchase

5 .0

2025-10-25

Excellent UK supplier for cheap industrial SFP modules. Quality PIN photodiode and solid casing.

136 Helpful vote Comments

W***z

Brazil

Verified Purchase

5 .0

2025-10-05

Upgrading our UK campus network was a breeze with this LINK-PP LS-MM851G-S5I. Verified SFP Multi-Source Agreement compatibility across multiple vendors. The 550m transmission distance over OM3 multimode fiber is incredibly consistent!

160 Helpful vote Comments

J***s

Chile

Verified Purchase

4 .0

2025-09-12

Box was slightly crushed during shipping, but the 1000BASE-SX industrial module works flawlessly.

22 Helpful vote Comments

L***k

Chile

Verified Purchase

5 .0

2025-08-15

Flawless DDM integration on my Ubiquiti switches.

197 Helpful vote Comments

C***z

Venezuela

Verified Purchase

5 .0

2025-07-22

Solid 550m multimode SFP, works exactly as advertised.

172 Helpful vote Comments

J***h

Tunisia

Verified Purchase

4 .0

2025-07-16

Delivery took an extra day. The 1G SFP 850nm transceivers are rock solid though!

13 Helpful vote Comments

R***r

Costa Rica

Verified Purchase

5 .0

2025-07-04

Industrial temp SFP survived our harsh factory environment.

173 Helpful vote Comments

L***n

Ecuador

Verified Purchase

5 .0

2025-06-04

Needed a cost-effective 1000BASE-SX solution for our warehouse IP camera rollout. These duplex LC MMF modules synced instantly with our mixed Cisco and Aruba topology. Outstanding ROI and zero dropped frames.

88 Helpful vote Comments

P***s

Tunisia

Verified Purchase

5 .0

2025-05-27

Plug and play 850nm optics for outdoor cabinets! ❄️

58 Helpful vote Comments

M***k

United States

Verified Purchase

5 .0