1G / 2.5G Fiber Optic Transceivers — SFP, SFF, 1x9 & GBIC

MSA-compliant 1G and 2.5G SFP, SFF, 1x9, and GBIC transceivers. Compatible with Cisco, Juniper, Arista. 155 Mbps to 2.5G. Industrial temp available. Made in Taiwan.

Last updated August 2026

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1,100+ SKUsMSA-CompliantMade in TaiwanTAA CompliantNDAA 889RoHS Certified1 Business Day Response
All Products1G / 2.5G10G25G / 32G40G / 56G100G200G400G / 800GPONAOC / DACComponentsCable Assemblies

Our 1G and 2.5G transceiver line covers the broadest range of legacy and modern access applications, with form factors including SFP, SFF, SFF 2x5, 1x9, 1x9 BiDi, 2x9, and GBIC. These modules support data rates from 155 Mbps (OC-3/STM-1) to 2.5 Gbps (2.5GbE, OC-48/STM-16, CPRI Option 1–3).

What is an SFP transceiver?

The Small Form-factor Pluggable (SFP) is the industry-standard hot-swappable module used in Ethernet switches, routers, and access devices. SFP transceivers support speeds from 100 Mbps to 1 Gbps depending on the variant.

Are SFP transceivers compatible with Cisco, Juniper, and Arista?

Yes. All Coretek Opto SFP modules are MSA-compliant and coded for compatibility with platforms from Cisco, Juniper, Arista, Dell, Huawei, Nokia, Calix, ZTE, and other major vendors.

What reach and wavelength options are available at 1G / 2.5G?

Reach options span the full access and metro range: multimode SX (up to 550 m on OM2), single-mode LX (10 km), EX (40 km), ZX (80 km), and ultra-long-haul (120 km). Wavelength options include 850 nm, 1310 nm, 1490 nm, 1550 nm, and BIDI WDM variants for single-fiber runs.

What are 1G and 2.5G transceivers used for?

These transceivers are widely deployed in enterprise access/distribution layers, telecom SONET/SDH rings, broadband PON backhauling, video surveillance, industrial automation, and legacy OC-3/OC-12 infrastructure. Both commercial (0°C to 70°C) and industrial-grade (−40°C to 85°C) temperature ranges are available across most SKUs.

Where can I buy SFP and GBIC transceivers in Canada?

NAFO ships 1G and 2.5G transceivers across Canada and the United States from Richmond, BC. Every module is made in Taiwan by Coretek Opto. We are Coretek’s exclusive North American representative. Request a quote and we respond within 1 business day.

1G / 2.5G Transceivers — Full Specifications & Part Selection

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424 of 424 products
Form FactorData RateDescriptionOpticsDistanceConnectorTemp
1x90-1M RS232 1x9850nm / MMF2 kmSC/ST/FCC&IGet Quote →
1x90-1M RS232 1x91310nm / SMF20 kmSC/ST/FCC&IGet Quote →
SFP0-2M RS232 SFP1310nm / SMF10 kmLCC&IGet Quote →
2x9155 Mb/s155M 2x9 BIDITx1310/Rx1550 / MMF2 kmSCIGet Quote →
2x9155 Mb/s155M 2x9 BIDITx1550/Rx1310 / MMF2 kmSCIGet Quote →
2x9155 Mb/s155M 2x9 BIDITx1310/Rx1550 / SMF20 kmSCIGet Quote →
2x9155 Mb/s155M 2x9 BIDITx1550/Rx1310 / SMF20 kmSCIGet Quote →
2x9155 Mb/s155M 2x9 BIDITx1310/Rx1550 / SMF40 kmSCIGet Quote →
2x9155 Mb/s155M 2x9 BIDITx1550/Rx1310 / SMF40 kmSCIGet Quote →
2x9155 Mb/s155M 2x9 BIDITx1310/Rx1550 / SMF60 kmSCIGet Quote →
1x91.25 Gb/s1.25G 1x9 BIDITx1550/Rx1310 / SMF20 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x9 BIDITx1310/Rx1550 / SMF40 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x9 BIDITx1550/Rx1310 / SMF40 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x9 BIDITx1490/Rx1550 / SMF80 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x9 BIDITx1550/Rx1490 / SMF80 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x9 BIDITx1490/Rx1550 / SMF120 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x9 BIDITx1550/Rx1490 / SMF120 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x9850nm / MMF550 mSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x91310nm / SMF20 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x91310nm / SMF40 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x91550nm / SMF40 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x91550nm / SMF80 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x91550nm / SMF120 kmSC/ST/FCC&IGet Quote →
1x91.25 Gb/s1.25G 1x9CWDM / SMF20 kmSC/ST/FCCGet Quote →
1x91.25 Gb/s1.25G 1x9CWDM / SMF40 kmSC/ST/FCCGet Quote →
1x91.25 Gb/s1.25G 1x9CWDM / SMF80 kmSC/ST/FCCGet Quote →
1x91.25 Gb/s1.25G 1x9CWDM / SMF120 kmSC/ST/FCCGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1310/Rx1550 / SMF10 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1310 / SMF10 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1310/Rx1550 / SMF20 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1310 / SMF20 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1310/Rx1550 / SMF40 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1310 / SMF40 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1490/Rx1550 / SMF80 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1490 / SMF80 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1490/Rx1550 / SMF120 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1490 / SMF120 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1490/Rx1550 / SMF160 kmSCCGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1490 / SMF160 kmSCCGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1310/Rx1550 / SMF10 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1310 / SMF10 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1310/Rx1550 / SMF40 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1310 / SMF40 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1490/Rx1550 / SMF80 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1490 / SMF80 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1490/Rx1550 / SMF120 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1490 / SMF120 kmSCC&IGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1490/Rx1550 / SMF160 kmSCCGet Quote →
SFF1.25 Gb/s1.25G BIDI SFFTx1550/Rx1490 / SMF160 kmSCCGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1310/RX1490 / SMF3 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1490/RX1310 / SMF3 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1310/RX1490 / SMF10 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1490/RX1310 / SMF10 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1310/RX1490 / SMF20 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1490/RX1310 / SMF20 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1310/RX1490 / SMF40 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1490/RX1310 / SMF40 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1310/RX1550 / SMF3 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1550/RX1310 / SMF3 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1310/RX1550 / SMF10 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1550/RX1310 / SMF10 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1310/RX1550 / SMF20 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1550/RX1310 / SMF20 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1310/RX1550 / SMF40 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1550/RX1310 / SMF40 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1310/RX1550 / SMF80 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1550/RX1310 / SMF80 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1490/RX1550 / SMF80 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1550/RX1490 / SMF80 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1490/RX1550 / SMF100 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1550/RX1490 / SMF100 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1550/RX1490 / SMF120 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1490/RX1550 / SMF160 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1550/RX1490 / SMF160 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1490/RX1550 / SMF180 kmLC/SCC&IGet Quote →
SFP1.25 Gb/s1.25G BIDI SFPTX1550/RX1490 / SMF180 kmLC/SCC&IGet Quote →
1x9155 Mb/s155M CWDM 1x9CWDM / SMF80 kmSCCGet Quote →
1x9155 Mb/s155M CWDM 1x9CWDM / SMF100 kmSCCGet Quote →
1x9155 Mb/s155M CWDM 1x9CWDM / SMF120 kmSCCGet Quote →
1x91.25 Gb/s1.25G CWDM 1x9CWDM / SMF40 kmSCCGet Quote →
1x91.25 Gb/s1.25G CWDM 1x9CWDM / SMF80 kmSCCGet Quote →
1x91.25 Gb/s1.25G CWDM 1x9CWDM / SMF100 kmSCCGet Quote →
SFP1.25 Gb/s1.25G CWDM SFPCWDM / SMF40 kmLCCGet Quote →
SFP1.25 Gb/s1.25G CWDM SFPCWDM / SMF80 kmLCCGet Quote →
SFP1.25 Gb/s1.25G CWDM SFPCWDM / SMF100 kmLCCGet Quote →
SFP1.25 Gb/s1.25G CWDM SFPCWDM / SMF120 kmLCCGet Quote →
SFP1.25 Gb/s1.25G CWDM SFPCWDM / SMF160 kmLCCGet Quote →
SFP1.25 Gb/s1.25G DWDM SFPDWDM / SMF10 kmLCC&IGet Quote →
SFP1.25 Gb/s1.25G DWDM SFPDWDM / SMF40 kmLCC&IGet Quote →
SFP1.25 Gb/s1.25G DWDM SFPDWDM / SMF80 kmLCC&IGet Quote →
SFP1.25 Gb/s1.25G DWDM SFPDWDM / SMF120 kmLCC&IGet Quote →
SFP1.25 Gb/s1.25G DWDM SFPDWDM / SMF160 kmLCC&IGet Quote →
SFF1.25 Gb/s1.25G SFF850nm / MMF550 mLCC&IGet Quote →
SFF1.25 Gb/s1.25G SFF1310nm / SMF10 kmLCC&IGet Quote →
SFF1.25 Gb/s1.25G SFF1310nm / SMF20 kmLCC&IGet Quote →
SFF1.25 Gb/s1.25G SFF1310nm / SMF40 kmLCC&IGet Quote →
SFF1.25 Gb/s1.25G SFF1550nm / SMF40 kmLCC&IGet Quote →
SFF1.25 Gb/s1.25G SFF1550nm / SMF80 kmLCC&IGet Quote →
SFF1.25 Gb/s1.25G SFF1550nm / SMF120 kmLCC&IGet Quote →
SFF1.25 Gb/s1.25G SFF1550nm / SMF180 kmLCCGet Quote →
Page 1 of 5 · showing 1100 of 424

C = Commercial (0°C to 70°C) · I = Industrial (−40°C to 85°C)

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Coretek Opto
Made in Taiwan · Since 2001
MSA-compliant · RoHS certified