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1000BASE-SX SFP 850nm 550m Multimode Transceiver

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  • 1000BASE-SX SFP 850nm 550m Multimode Transceiver
  • 1000BASE-SX SFP 850nm 550m Multimode Transceiver
  • 1000BASE-SX SFP 850nm 550m Multimode Transceiver
  • 1000BASE-SX SFP 850nm 550m Multimode Transceiver
  • 1000BASE-SX SFP 850nm 550m Multimode Transceiver
  • 1000BASE-SX SFP 850nm 550m Multimode Transceiver

1000BASE-SX SFP 850nm 550m Multimode Transceiver

Product Item: #143
P/N: SFP-1G-SX-85FM
US$7.00

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Order Today, Ship before 06/11/2026, from U.S. or Hong Kong
  • Description
  • Datasheet
  • Tags
  • FAQ

1.25Gbps 1000BASE-SX SFP 850nm 550m Multimode Transceiver

 

SFP-1G85-5M

SFP-1G85-5M 1000BASE-SX 850nm 550m SFP transceivers are high performance, cost effective modules supporting dual data-rate of 1.25Gbps/1.0625Gbps and 550m transmission distance with MMF. The fiber optic transceiver consists of three sections: a VCSEL laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements. The 1000BASE-SX sfp modules are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA.

 

Key Features

  • Data-rate of 1.25Gbps/1.063Gbps operation
  • 850nm VCSEL laser and PIN photodetector for 550m transmission
  • Hot-pluggable SFP footprint duplex LC connector Interface
  • Class 1 FDA and IEC60825-1 Laser Safety Compliant
  • Compatible with SFP MSA
  • Compatible with SFF-8472
  • +3.3V single power supply
  • Average Output Power:-9.5~ -3dBm
  • Receiver Sensitivity:-17dBm

 

Applications

  • Fiber Channel Links
  • Gigabit Ethernet Links
  • Fast Ethernet Links
  • Other Optical Links

 

Datasheet

 

Part Number

Distance

Fibers

Port

Datasheet

SFP-GE-T-FM

100m

Cat 5 RJ45

SFP-GE-TA-FM

100m

Cat 5 RJ45
SFP-1G-SX-85FM

550m

MMF LC
SFP-1G-SX-31FM

2km

MMF LC
SFP-1G-LX-31FM

10km

SMF LC
SFP-1G-LX2-31FM

20km

SMF LC
SFP-1G-EX-31FM 40km SMF LC
SFP-1G-ZX-55FM 80km SMF LC
SFP-1G-EZX-55FM 100km SMF LC

 

Quality Certification

 

Quality and standards are the foundation of Fiber-MART.COM. We are dedicated to providing customers with outstanding, standards-compliant products and services. Fiber-MART.COM has passed many quality system verifications, like CE, RoHS, FCC, established an internationally standardized quality assurance system and strictly implemented standardized management and control in the course of design, development, production, installation and service.
 
Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.

 

 

Ordering Information

Part No. Data Rate (Gbps) Wavelength (nm) TX Power (dBm) Re Sens. (dBm) Transmission Distance Fiber Type Connector Type Temp. Range Digital Diagnostics
SFP-1G85-5M ≤ 1.25 850 -9.5 ~ - 3 ﹤ -17 550m MMF LC Com./Ex./Ind. Yes/No
SFP-1G31-5M ≤ 1.0625 1310 -9.5 ~ - 3 ﹤ -17 550m MMF LC Com./Ex./Ind. Yes/No
SFP-1G31-2 ≤ 1.25 1310 -9 ~ -3 ﹤ -21 2km MMF LC Com./Ex./Ind. Yes/No
SFP-1G31-10 ≤ 1.25 1310 -9 ~ -3 ﹤ -21 10km SMF LC Com./Ex./Ind. Yes/No
SFP-1G31-15 ≤ 1.25 1310 -8 ~ -3 ﹤ -21 15km SMF LC Com./Ex./Ind. Yes/No
SFP-1G31-20 ≤ 1.25 1310 -8 ~ -3 ﹤ -22 20km SMF LC Com./Ex./Ind. Yes/No
SFP-1G31-30 ≤ 1.25 1310 -5 ~ 0 ﹤ -24 30km SMF LC Com./Ex./Ind. Yes/No
SFP-1G31-40 ≤ 1.25 1310 -2 ~ 3 ﹤ -24 40km SMF LC Com./Ex./Ind. Yes/No
SFP-1G55-40 ≤ 1.25 1550 -5 ~ 0 ﹤ -24 40km SMF LC Com./Ex./Ind. Yes/No
SFP-1G55-60 ≤ 1.25 1550 -2 ~ 3 ﹤ -24 60km SMF LC Com./Ex./Ind. Yes/No
SFP-1G55-80 ≤ 1.25 1550 0~5 ﹤ -24 80km SMF LC Com./Ex./Ind. Yes/No
SFP-1G55-100 ≤ 1.25 1550 0~5 ﹤ -28 100km SMF LC Com./Ex./Ind. Yes/No
SFP-1G55-120 ≤ 1.25 1550 0~5 ﹤ -32 120km SMF LC Com./Ex./Ind. Yes/No
SFP-1G55-160 ≤ 1.25 1550 3~7 ﹤ -37 160km SMF LC Com./Ex./Ind. Yes/No

 

Test Report

 

Packaging

  • Antistatic bag
  • Packed on pallets in a box(Default Customer Options)
  • Specific Labels as Request
  • Seperate white Box for each transceiver

 

OEM and ODM

Combining our extensive design and engineering capability in optical transceiver industry, with our competitive advantages from integrated manufacturing capability, internal supply chain, and cost competitive and scalable operation infrastructure, Fiber-Mart provides OEM, ODM, and contract manufacturing service to world leading customers with our manufacturing facilities in China.We are also mainly engaged in providing complete sets of optoelectronic device solutions to gain more brand extensions and influence for Fiber-Mart in the world.

  • OEM/ODM order is available
  • We can supply SFP-1G85-5M according to your requirements, and design SFP-1G85-5M label and packaging for your company. We welcome any inquiry for customized 100M & 1G SFP optical transceiver.

 

Order Procedure

Please contact us with any special requirements you may have, we can help you create a custom solution to meet almost any application. Our engineer will review the project and provide a quotation within 1-2 business days.
a. Email ([email protected]) us a rough sketch to a detailed drawing.
b. Our engineer will review the project and provide a quotation within 24 hours.
c. We can arrange production as low as 1 piece and as high as 1,000 pieces in 1~4 business days once an order is placed.

 

Shipment

International Express: Fedex, DHL, UPS, TNT and EMS.If you have another preferred carrier, please notify us in advance.
FedEx Overnight: It will take 1-3 business days (weekends and holidays excepted) for delivery.
DHL: It will take 2-4 business days (weekends and holidays excepted) for delivery. For Spain, Italy, Brazil and some other countries, items will take longer time to arrive due to customs clearance period.

 

Save Cost By Buying 100M & 1G SFP From Original Manufacturer Fiber-Mart Directly.

Fiber-Mart is a professional manufacturer & supplier of 100M & 1G SFP transceivers. All of our 100M & 1G SFP transceivers are tested in-house prior to shipping to guarantee that they will arrive in perfect physical and working condition. We guarantee 100M & 1G SFP transceivers to work in your system and all of our 100M & 1G SFP transceivers come with a lifetime advance replacement warranty. If you have questions about 100M & 1G SFP optics, please feel free to contact us at [email protected]


Part Number

Distance

Fibers

Port

Datasheet

SFP-GE-T-FM

100m

Cat 5 RJ45

SFP-GE-TA-FM

100m

Cat 5 RJ45
SFP-1G-SX-85FM

550m

MMF LC
SFP-1G-SX-31FM

2km

MMF LC
SFP-1G-LX-31FM

10km

SMF LC
SFP-1G-LX2-31FM

20km

SMF LC
SFP-1G-EX-31FM 40km SMF LC
SFP-1G-ZX-55FM 80km SMF LC
SFP-1G-EZX-55FM 100km SMF LC

 

Datasheet to Download

Customized Service :

 

● If you need any customized products or services, please write your request in Order Remarks, or send an email to [email protected]

 

Get Quote or Checkout Online :

 

● To request a Quote or Checkout to pay online, simply add items into your cart and select your preferred method.

 

Free Shipping & No Tariff :

 

● Online Order over US$200 is Free Shipping (Not included Heavy Items like Outdoor Cable, Outdoor Cabinet etc),

● For US customer, Fibermart covers all customs duty and fees - no additional tariff charges. 

 

Shipping Time :

 

● FedEx : 2-4 business days
● UPS : 2-5 business days
● DHL : 2-6 business days
● Shipment by Sea : 20-25 business days

 

Payment Method :

 

● PayPal (Online)

● Credit / Debit Card (Online)

● ABA Routing (US Local)

● T/T Wire Transfer (International)
 

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Returns & Warranty :

 

● 1-Year Warranty 

● 60-Day Returns  

● 60-Day Exchange

● Limited Lifetime Warranty.

   Read full Return & Refund Policy

 

Net Term & Credit :

 

● Fibermart accept Net 30 and Net 60 payment terms, Contact Us for Credit Account by submit a credit form.

 

Volume Discount :

 

● Fibermart offers discount prices for large-volume order, Contact Sales Team for more details.

 

Customer Reviews

Displaying 1 to 9 (of 9 reviews)

by Jens Hansen
Date Added: 05/19/2026
Stable data transmission as advertised, fast shipping and reasonable price. These SFP transceivers offer great value.

Rating: 5 of 5 Stars [5 of 5 Stars]
1000BASE-SX SFP 850nm 550m Multimode Transceiver

by Anna Kowalska
Date Added: 10/14/2025
Fibermart's 1000BASE-SX SFP transceivers were well wrapped and fast shipped, coming with high quality for our data links, good.

Rating: 5 of 5 Stars [5 of 5 Stars]
1000BASE-SX SFP 850nm 550m Multimode Transceiver 1000BASE-SX SFP 850nm 550m Multimode Transceiver

by Mateusz Nowak
Date Added: 10/11/2025
Low loss low price but high quality and high performance. Fast shipping as well.

Rating: 5 of 5 Stars [5 of 5 Stars]
1000BASE-SX SFP 850nm 550m Multimode Transceiver 1000BASE-SX SFP 850nm 550m Multimode Transceiver

by Zachary Huntington
Date Added: 07/07/2025
Fibermart optical transceivers are stable in connections with low loss. Grear! I would buy again!

Rating: 5 of 5 Stars [5 of 5 Stars]
1000BASE-SX SFP 850nm 550m Multimode Transceiver

by Jonathan White
Date Added: 04/03/2025
FiberMart transceiver provides great easy use and stable connections, and hot-plugging support is what we really need.

Rating: 5 of 5 Stars [5 of 5 Stars]
1000BASE-SX SFP 850nm 550m Multimode Transceiver

by Jason Peng
Date Added: 02/25/2025
So nice sfp transceiver, which is good to use and stable connection, everything is ok.

Rating: 5 of 5 Stars [5 of 5 Stars]
1000BASE-SX SFP 850nm 550m Multimode Transceiver

by serge wilson
Date Added: 06/28/2024
Fast shipping and high quality, this sfp transceiver supports 550m transmission distance, very fit our needs.

Rating: 5 of 5 Stars [5 of 5 Stars]
1000BASE-SX SFP 850nm 550m Multimode Transceiver 1000BASE-SX SFP 850nm 550m Multimode Transceiver

by Miller Thomas
Date Added: 04/19/2022
Well received 1g sx sfp in good condition, they work well and no problem in our Cisco switch.

Rating: 5 of 5 Stars [5 of 5 Stars]
1000BASE-SX SFP 850nm 550m Multimode Transceiver 1000BASE-SX SFP 850nm 550m Multimode Transceiver 1000BASE-SX SFP 850nm 550m Multimode Transceiver

by Andree Arevalo
Date Added: 01/25/2022
We received your SFP modules and put them into use already. They work flawlessly so far. In our rack it is nice and cozy – they will be in good hands.

Rating: 5 of 5 Stars [5 of 5 Stars]
1000BASE-SX SFP 850nm 550m Multimode Transceiver



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