North America Fiber Optics (NAFO) is the exclusive North American representative for Coretek Opto, supplying MSA-compliant fiber optic transceivers from 155 Mbps to 800G, including SFP, SFP+, SFP28, QSFP+, QSFP28, QSFP-DD, and OSFP form factors, to carriers, data centers, and enterprises across Canada and the United States.

Every module is made in Taiwan by Coretek Opto, RoHS certified, and available in commercial (0°C to 70°C) and industrial (−40°C to 85°C) temperature grades. Transceivers can be supplied as standard stock, white-label, or custom-coded for Cisco, Juniper, Arista, Dell, Nokia, Calix, ZTE, and any other platform, built for resellers, integrators, and carriers.

1,100+
Transceiver SKUs
155M–800G
Data rate range
MSA
Compliant, all form factors
1 day
Quote response time
Product Catalog

Fiber Optic Transceivers — Every Speed from 155 Mbps to 800G

Fiber optic transceivers for every network application:

  • Fiber Optic Transceivers Built for Your Brand: White-label, custom-coded, or standard stock, for resellers, integrators, and carriers
  • Telecom Networks (Transceivers for): SONET/SDH, DWDM and CWDM optics for carrier backbone and metro transport
  • 5G Fronthaul (Transceivers for): CPRI and eCPRI SFP28 optics up to 25G, connecting radio units to baseband
  • Data Centers (Transceivers for): 100G, 400G and 800G QSFP28, QSFP-DD and OSFP for hyperscale and AI interconnects
  • Enterprise & Campus (Transceivers for): 1G to 25G SFP and SFP28 for switches, routers and firewalls on every major platform
  • FTTH & PON Access (Transceivers for): GPON, EPON, XGS-PON and 25G SPON: OLT and ONU modules for fiber-to-the-home
  • Broadcast & Video (Transceivers for): SD, HD and 3G-SDI video transceivers for broadcast and studio-to-transmitter links
  • MSA-Compliant and Built to Last (Every module we ship): RoHS certified · Industrial temperature −40°C to 85°C · Custom coding for any platform
  • Exclusive Coretek Opto Representative (North America Fiber Optics): Taiwan-manufactured transceivers from 155 Mbps to 800G. 1,100+ SKUs, quoted in 1 business day
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1G / 2.5G
SFP, SFF, 1x9, GBIC
424 SKUs →
10G
SFP+, XFP, CSFP+
203 SKUs →
25G / 32G
SFP28, CPRI SFP28
36 SKUs →
40G / 56G
QSFP+
28 SKUs →
100G
QSFP28, SFP-DD
39 SKUs →
200G
QSFP56, QSFP-DD
8 SKUs →
400G / 800G
QSFP-DD, OSFP
36 SKUs →
PON Modules
GPON, EPON, XGS-PON
93 SKUs →
AOC & DAC
10G – 800G cables
51 SKUs →
Fiber Components
OSA, BOSA, ROSA, TOSA
4 SKUs →
Custom Fiber Cable Assemblies

What custom fiber optic cable assemblies does NAFO build?

Beyond transceivers, NAFO supplies custom fiber optic cable assemblies: patch cables, breakout harnesses, armored runs, and MPO/MTP trunks, built to your exact length, connector, and fiber type specifications.

OS2 single-mode, OM3/OM4/OM5 multimode, LC/SC/FC/ST/MPO connectors, and standard or industrial temperature ratings. No minimum order quantity for most assemblies.

View Cable AssembliesRequest a quote →
Fiber Types
OS2 single-mode · OM1 / OM2 / OM3 / OM4 / OM5 multimode
Connectors
LC, SC, ST, FC, MPO/MTP, with UPC and APC polish available
Constructions
Tight buffered, loose tube, breakout, armored, ribbon
Applications
Data center, telecom, industrial, military, medical
Why NAFO

Why buy Coretek Opto transceivers from NAFO?

Coretek Opto has manufactured precision fiber optic transceivers in Taiwan since 1997. Every module goes through rigorous quality controls before leaving the factory. NAFO is their exclusive North American representative. All Coretek products sold in Canada and the United States flow through us.

All products are MSA-compliant and can be custom-coded for Cisco, Juniper, Arista, Dell, Nokia, Calix, ZTE, or any other platform. Commercial (0°C to 70°C) and industrial (−40°C to 85°C) temperature grades are available across most SKUs.

Learn more about NAFO →
Certifications & Standards
MSA
Multi-Source Agreement Compliant
SFP, SFP+, SFP28, QSFP+, QSFP28, QSFP-DD, OSFP: all form factors
RoHS
RoHS Certified
Compliant for EU and global markets, with no restricted hazardous substances
DOM
Digital Optical Monitoring
Real-time Tx/Rx power, temperature, voltage, bias current diagnostics
TW
Made in Taiwan
Manufactured by Coretek Opto in Taiwan since 1997
Compatible Platforms
CiscoJuniperAristaDellNokiaCalixZTEMellanox/NVIDIAHPE
Our Manufacturing Partner

Who manufactures NAFO transceivers?

Founded in Taiwan in 1997, Coretek Opto's manufacturing stack covers die attach, wire bonding, SMT, optical sub-assembly, and complete subsystem integration, giving them control over every stage of transceiver production.

Their engineering team supports custom wavelength selection, custom form factors, application-specific coding, and extended temperature qualification for defense, industrial, and telecom OEM customers.

29+
Years in business
10+
Year NAFO partnership
1,100+
Total product SKUs
Custom Coding & White-Label
EEPROM programmed for any target platform. Cisco, Juniper, Arista, or fully custom vendor strings.
Standard & Custom Form Factors
From legacy 1x9 to OSFP 800G. Custom mechanical packaging for OEM applications.
Industrial Temperature Range
−40°C to 85°C variants available across most SKUs for outdoor telecom, defense, and energy.
OEM Sub-Assemblies
OSA, BOSA, ROSA, and TOSA components supplied to transceiver OEMs with custom specifications.

How do I request a transceiver quote?

Describe your form factor, speed, reach, quantity, and platform. We respond within 1 business day.

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Contact

How do I contact NAFO?

Location
Richmond, BC, Canada