CZT is a leading manufacturer of precision fiber optic connectors and SFP optical connector cage assemblies engineered for high-speed signal integrity. Our product range covers the full fiber optic interconnect chain — from SFP fiber connector cages and SFP+ cage assemblies to LC, SC, ST, and MPO/MTP fiber connectors used in data center, telecom, and FTTH deployments.
Every SFP transceiver LC connector cage we manufacture meets MSA (Multi-Source Agreement) specifications and is validated for compatibility with modules from all major transceiver vendors. Our SFP module LC connector cages feature precision-machined guide rails, integrated EMI shielding, and optimized thermal paths for reliable 1G to 25G operation. For technical details on SFP module types and how to choose the right transceiver, see our SFP vs SFP+ vs QSFP28 comparison guide.
Expanded Fiber Catalog
SFP, QSFP, and optical module products organized for RFQ
The Fiber / SFP catalog now separates downloadable drawing products from additional optical module families that can be handled through Request Drawing. This gives data center and telecom buyers a clearer path from family selection to sample request without hiding products that still need PDF packaging.
17
With downloads
17
With drawings
3
New releases
51
RFQ families
Product Sub-categories
SFP/SFP+ Cage Assemblies
Precision-engineered SFP and SFP+ cage assemblies with integrated heat sinks and EMI shielding for 1G to 25G applications.
LC Connectors
Small form-factor LC fiber connectors with low insertion loss, available in simplex and duplex for high-density patching.
SC Connectors
Push-pull SC connectors with ceramic ferrule and precision alignment for single-mode and multi-mode fiber networks.
ST Connectors
Bayonet-style ST connectors with spring-loaded ferrule for secure fiber termination in enterprise LAN systems.
Optical Transceivers
SFP, SFP+, QSFP28, and QSFP56 optical transceiver modules supporting 1G to 400G data rates with DDM diagnostics.
Fiber Patch Cables
Pre-terminated fiber patch cables in LC-LC, SC-SC, and hybrid configurations with OS2 and OM3/OM4 options.
Products (17)
SFP100G QSFP28 Optical Transceiver Module
- Data Rate: 100Gbps
- Center Wavelength: 850nm
- Transmission Distance: 70m / 100m
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SFP100G QSFP28 AOC Active Optical Cable
- Data Rate: 100Gbps
- Center Wavelength: 850nm
- Transmission Distance: 0~100m
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SFP100G QSFP28 LR4/CWDM4 2KM/10KM Optical Transceiver Module
- Data Rate: 100Gbps
- Center Wavelength: 1310nm / CWDM
- Transmission Distance: 2km / 10km
View Details
SFPMINI SAS 1x1 Connector 26PIN 15U" CZT Marked
12200126D001
- Rated Current: 0.5 A
- Rated Voltage: 30 V AC
- Insulation Resistance: 1000 MΩ Min
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SFPQSFP28 1x1 Cage Assembly
10736111W019
- Insertion / Extraction Force: 40 N Max / 30 N Max
- Operating Temperature: -40 °C to +85 °C
- Storage Temperature: -40 °C to +85 °C
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SFPSFP28 1x1 Cage Assembly
10730211W008
- Insertion / Extraction Force: 40 N Max / 12.5 N Max
- Operating Temperature: -40 °C to +85 °C
- Storage Temperature: -40 °C to +85 °C
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SFPSFP 2x2 Connector
10705322D012
- Rated Current: 0.5 A
- Rated Voltage: 30 V AC
- Insulation Resistance: 1000 MΩ Min
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SFPSFP+ 1x1 Connector
10710111W064
- Insertion / Extraction Force: 40 N Max / 12.5 N Max
- Operating Temperature: -40 °C to +85 °C
- Storage Temperature: -40 °C to +85 °C
View Details
SFPSFP+ 1x1 Cage Assembly
10710111W028
- Insertion / Extraction Force: 40 N Max / 12.5 N Max
- Operating Temperature: -40 °C to +85 °C
- Storage Temperature: -40 °C to +85 °C
View Details
SFPSFP+ 1x2 Cage Assembly
10710612W027
- Insertion / Extraction Force: 40 N Max / 12.5 N Max
- Operating Temperature: -40 °C to +85 °C
- Storage Temperature: -40 °C to +85 °C
View Details
SFPSFP+ 2x6 Connector
10716026F001
- Rated Current: 0.5 A
- Rated Voltage: 30 V AC
- Insulation Resistance: 1000 MΩ Min
View Details
SFPSFP28 1x1 Connector
10730211W005
- Insertion / Extraction Force: 40 N Max / 15 N Max
- Operating Temperature: -40 °C to +85 °C
- Storage Temperature: -40 °C to +85 °C
View Details
Additional Optical Families
Optical module families and new releases ready for inquiry intake
Additional Fiber / SFP product families are available for early selection when the buyer wants to compare module type, cage construction, port format, and application fit. New SFP/QSFP/CFP records from the old site are also cross-listed here so they are not hidden only under New Products.
Technical Specifications
| Parameter | Specification |
|---|---|
| Connector Type | LC, SC, ST, FC, MTP/MPO |
| Fiber Type | Single-mode (OS2), Multi-mode (OM3/OM4/OM5) |
| Insertion Loss | ≤0.2 dB (PC), ≤0.1 dB (APC) |
| Return Loss | ≥50 dB (PC), ≥60 dB (APC) |
| Durability Cycles | 500–1,000 mating cycles |
Applications
Data Centers
High-density fiber patching for hyperscale and enterprise data center interconnects.
Telecom Networks
Carrier-grade optical connectivity for 5G fronthaul, backhaul, and metro networks.
FTTH
Fiber-to-the-home distribution with SC/APC and LC connectors for last-mile access.
Enterprise LAN
Structured cabling solutions with LC duplex and MTP/MPO trunk cables.
Why Choose CZT for Fiber Optic Connectors
- 30+ years of fiber optic connector manufacturing experience
- Custom SFP cage designs with integrated EMI shielding
- UL, CE, and RoHS certified products
- MOQ as low as 100 pieces for prototyping and small batches
Related Product Categories
Frequently Asked Questions
What fiber connector types does CZT manufacture?
CZT manufactures LC, SC, ST, FC, and MPO/MTP fiber optic connectors in both single-mode (OS2) and multimode (OM3/OM4/OM5) configurations, plus SFP and SFP+ cage assemblies for optical transceiver modules.
What is an SFP fiber connector?
An SFP fiber connector refers to the LC duplex optical interface on SFP and SFP+ transceiver modules. The SFP transceiver uses an LC connector with a 1.25mm ceramic ferrule to interface with fiber optic patch cables. CZT manufactures the SFP cage assemblies that house these modules on switches and NICs.
What is the minimum order quantity for fiber optic connectors?
CZT offers MOQ as low as 100 pieces for prototyping and small-batch orders. For volume production, we support orders from 1,000 to millions of units with competitive lead times.
What certifications do CZT fiber optic connectors carry?
CZT fiber optic connectors and SFP cage assemblies are UL, CE, and RoHS certified. Our manufacturing facility is ISO 9001 certified with 30+ years of fiber optic connector engineering experience.
What is the difference between SFP and SFP+ optical connectors?
SFP supports 1 Gbps data rates and SFP+ supports 10 Gbps, but both use the same physical form factor and LC duplex fiber connector interface. SFP+ cages require tighter signal integrity tolerances due to the higher-speed signaling.
Ready to Get Started?
Contact our fiber optic engineering team for custom designs, samples, or volume pricing.
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