What is an SN connector?

SN is a next-generation VSFF (Very Small Form Factor) connector developed for ultra-high density cabling, roughly 40% smaller than a standard LC connector and defined under IEC 61754-36.

Is this patch cord compatible with OM4 applications?

Yes. The Y-FO-FP-063 is built with laser-optimized OM4 50/125um multimode fiber, fully compatible with OM4 applications and engineered for 400G/800G high-speed data center links.

What cable jacket options are available?

Available jacket options include LSZH, PVC, OFNR and OFNP. The cord uses a 1.6mm round duplex construction with a Magenta outer jacket.

What is the insertion loss and return loss?

Insertion loss is 0.05 dB typical and 0.15 dB maximum, while return loss is 30 dB or higher with PC-polished end faces.

Can the length be customized?

Yes. Custom lengths are available on request, and the default Type A-B polarity can also be adapted to meet your specific cabling requirements.

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Fiber Optic Patch Cord, SN/PC-SN/PC, Duplex OM4, 1.6mm LSZH, VSFF Assemblies

Fiber Optic Patch Cord, SN/PC-SN/PC, Duplex OM4, 1.6mm LSZH, VSFF Assemblies

Name: Fiber Optic Patch Cord, SN/PC-SN/PC, Duplex OM4, 1.6mm LSZH, VSFF Assemblies
Brand: OPELINK
SKU: Y-FO-FP-063
Availability: InStock
Rating: 5 (1 reviews)

Item No.: Y-FO-FP-063

SN/PC-SN/PC OM4 Fiber Patch Cord Y-FO-FP-063 by OPELINK: VSFF SN connector, 50/125um OM4 multimode for 400G/800G data center with low 0.05dB IL.

INQUIRY

Description Company Profile Related Product

SN/PC-SN/PC Duplex Patch Cord OM4 – High-Performance Multimode Fiber Optic Solution:

The OPELINK SN/PC-SN/PC OM4 Fiber Patch Cord is a dual-fiber (duplex) jumper engineered for ultra-high-density data center interconnect. It terminates both ends with the VSFF SN connector, a next-generation very-small-form-factor plug with a footprint roughly half that of the LC duplex connector, in accordance with IEC 61754-36. Precisely polished to a PC end face with an OM4 laser-optimized 50/125 µm multimode fiber, this patch cord delivers low insertion loss and high return loss while maximizing front-panel port density in 400G/800G and parallel optical architectures.
Every unit is 100% factory-tested and individually packaged with a test report, ensuring measured optical performance and long-term reliability in demanding enterprise and cloud data center environments.

Features and Benefits

• Compact dual-fiber SN design: with a port density nearly double that of LC duplex across the same panel
• High-density front-panel utilization: maximizes front-panel port count for 400G/800G switches and parallel optics
• Optimized for 400G/800G: engineered for high-speed parallel optical interconnect
• Low insertion loss, high return loss: typical insertion loss of 0.05 dB and return loss of ≥30 dB preserve signal integrity
• OM4 high bandwidth: 50/125 µm laser-optimized fiber with 4700 MHz·km effective modal bandwidth
• LSZH jacket option: low-smoke, halogen-free jacketing for plenum and riser deployments
• 100% factory-tested: each cord is individually tested and shipped with a test report

Applications

• Data center: high-density data center patching and cross-connect
• 200G/400G/800G: Ethernet links and high-speed pluggable optics
• Fibre Channel SAN: storage area network fabrics
• Parallel optics: MPO-to-SN breakout and parallel optical architectures

Technical Specifications

Parameter	Specification
Connector Type	VSFF SN connector, dual-core, IEC 61754-36
End Face	PC (UPC optional)
Fiber Type	OM4 50/125 µm laser-optimized multimode
Core / Cladding Size	50/125 µm
Operating Wavelength	850 nm / 1300 nm
Insertion Loss	Typical 0.05 dB, Maximum 0.15 dB (Grade B ferrule)
Return Loss	≥ 25 dB (PC)
Polarity	Type A, Type B (TIA-568.3-D)
Cable Jacket	LSZH / PVC / OFNR / OFNP (optional)
Jacket Type	1.6 mm round duplex cable
Jacket Color	Magenta,Violet
Outer Diameter	1.6 mm
Minimum Bend Radius	10 mm (dynamic) / 20 mm (static)
Operating Temperature	-20 °C to +70 °C
Storage Temperature	-40 °C to +85 °C
Standards Compliance	IEC 61754-36 / IEC 60793-2-10 / TIA-568.3-D / RoHS

Mechanical Specifications

Parameter	Specification
Mating Durability	500 insertion/withdrawal cycles
Cable Retention (Pull-out Force)	≥ 100 N (typical)
Connector Durability	Repeated mating, 500 cycles
Operating Temperature	-20 °C to +70 °C
Storage Temperature	-40 °C to +85 °C

Optical Performance

Parameter	Specification
Attenuation @ 850 nm	≤ 2.5 dB/km
Attenuation @ 1300 nm	≤ 0.7 dB/km
Effective Modal Bandwidth (EMB) @ 850 nm	≥ 4700 MHz·km
OFL Bandwidth @ 850 nm	≥ 3500 MHz·km
OFL Bandwidth @ 1300 nm	≥ 500 MHz·km
Numerical Aperture (NA)	0.200 ± 0.015
Zero Dispersion Wavelength	1297 – 1316 nm

Standards and Compliance

Standard	Description
IEC 61754-36	SN connector interface standard
IEC 60793-2-10	Optical fibres – OM4 multimode fibre requirements
TIA-568.3-D	Optical fiber cabling components standard (polarity Type A,Type B)
Telcordia GR-1435 / GR-409	Generic requirements for optical fiber and connector products
RoHS 2.0	Restriction of Hazardous Substances Directive compliance