SALES & ORDERS
Custom Cable Manufacturing in the USA Since 1997
Home of 
Free Ground shipping on orders over $250
Use code SHIP4FREE Exclusions Apply
Important!
Eligible Products Only | Free Shipping Exclusions May Apply to Heavy, Electronics & Bulky Items
Add Related Products
Pre-Term Fiber Assemblies
MTP Trunk Assemblies
MTP Fanout Cables
MTP Cassettes
Fiber Optic Enclosures
Fiber Optic Patch Cables
Ethernet Patch Cables
Ethernet Cable Bundles
Unterminated Fiber By The Foot
Network Configurator™
Use LANShack’s state of the art network designer tool to completely build your network from scratch.
What product are you looking for?
Pre-Term Fiber Assemblies
MTP Trunk Assemblies
MTP Fanout Cables
MTP Cassettes
Fiber Optic Enclosures
Fiber Optic Patch Cables
Ethernet Patch Cables
Ethernet Cable Bundles
Unterminated Fiber By The Foot
Product Overview
The Stock LC UPC to ST UPC Singlemode Duplex Fiber Optic Patch Cable is a high-performance solution, designed for precision and reliability in professional networking. Made with 9/125 micron singlemode fiber, this cable ensures efficient long-distance data transfer while maintaining minimal data loss.
Its LC UPC and ST UPC connectors have been engineered with precision ceramic ferrules and UPC polishing, which deliver immaculate alignment and low insertion loss (<0.3dB). The durable ONFR-rated yellow jacket adds both functionality and compliance with safety standards, making these cables a go-to choice for demanding installations.
Applications by Industry
- Telecommunications: Provides dependable and efficient performance in backbone networks, metro systems, and long-distance communications.
- Data Centers: Supports seamless, high-speed connectivity between servers, storage devices, and switches within congested facilities.
- Enterprise Networks: Ensures secure and uninterrupted communication across multi-building setups in corporate IT infrastructures.
- Healthcare: Facilitates accurate and real-time data transmission essential for imaging systems, telemedicine, and patient monitoring.
- Education: Serves campuses, interlinking faculty buildings, labs, and smart classrooms with reliable connectivity.
- Government and Defense: Meets critical operational requirements where secure, robust, and high-performance networking is indispensable.
Specifications in Depth
The Stock LC UPC to ST UPC Singlemode Duplex Fiber Optic Patch Cable is built to excel in professional applications. Featuring 9/125 micron singlemode fiber, it reduces attenuation and ensures strong signal quality over distance. The LC and ST UPC connectors utilize ceramic ferrules for precision alignment and low insertion loss, while the UPC polish enhances connectivity by minimizing signal reflection and ensuring clarity.
Designed for diverse environments, the cable is protected by an ONFR-rated jacket, offering durability and compliance with safety standards. It operates within a temperature range from -40°C to +75°C, making it viable for a variety of challenging conditions. Available in lengths from 10 feet to 5000 feet, this cable accommodates projects of all sizes. Optional pulling eye configurations also simplify installations in constrained spaces such as conduits or cable trays.
See detailed table below for full specifications of this product.
Typical Uses for 4 Meter Cable
The 4-meter cable accommodates mid-range connections, perfect for office cubicles or medium-scale setups.
Specifications
Fiber Type
Singlemode 9/125
Cable Length
4m
Connector Type
LC UPC to ST UPC
Connector Color
Red/Black
Boot Type
Flexible Boots
Insertion Loss
<0.3dB
Return Loss
>50dB
Jacket Material
ONFR
Jacket Outer Diameter
2mm
Jacket Color
Yellow
Operating Wavelength
1310/1550nm
Polish Type
UPC Fiber Connector Polish
Identification Markers
A/B Markers on each end of assembly
Operating Temps
-40°C to +75°C
Storage Temps
-40°C to +85°C
Videos
When You Place An Order
Step 01
Place Your Order
Our team processes your order within 24 business hours.
Step 02
Get Notifications
You receive emails about your order status.
Step 03
Track Your Order
Get tracking on your shipment until delivery.
Product Reviews (97)
5
5
4
3
2
1
customer
great options
customer
LANshack really was accommodating and very helpful with my fiber needs. They went to every extent to make sure our network was up and running in no time!
customer
Great customer service. Products in stock.
Sylvain Piette
Easy to order from website, fast shipping
WHEELER ELECTRIC
Quick and thorough order completion - had exactly what we needed - right price and right on time!!!
Don’t Just Take Our Word For It
May 30, 2026
Excellent Customer Service and Resolution
Tom personally reached out to me, took ownership of the situation, and worked to get my order resolved. He communicated with me directly, ensured the order was shipped, refunded the shipping charges, and provided a discount for the inconvenience.
What stands out most is the level of customer service and accountability shown throughout the process. It is refreshing to see a company stand behind its customers and make things right when an issue occurs.
I received my cable, the issue has been resolved, and I appreciate the effort Tom and his team put into correcting the situation. Based on how this was handled, I would not hesitate to do business with LANshack again.
Thank you, Tom, for your professionalism and commitment to customer service.
Lstargel
Feb 27, 2026
LANshack is the BEST!
Online ordering process was quick and easy. We are a non-profit organization and the LANshack team made the tax exemption process quick and easy. Fast shipping is especially appreciated! Thanks so much!
Non-Profit Customer
Apr 14, 2026
Great Custom Cables
Great product, exactly what I needed and fairly quick shipping considering they are custom cables! Will definitely be ordering more.
Matt S
Feb 10, 2026
Great products
Best RJ45 crimpers!
Dave
Dec 23, 2025
Excellent company with great speed
Excellent company with great speed, accuracy of products provided and very easy to work with in my experience.
Cline Electric
Apr 15, 2026
Great Customer Service and received the…
Great Customer Service and received the product faster than expected.
customer
Dec 09, 2025
Great team.
Open and clear lead times which they met or exceeded expectations. Quality product.
JC
May 07, 2026
Products were available and ready to…
Products were available and ready to ship quickly. Products worked as they were supposed too.
Robert Butler
Feb 17, 2026
LANshack: Best custom CAT8 ethernet cable on the market!
I needed a custom 55 foot S/FTP (Shielded Foiled Twisted Pair) CAT8 indoor ethernet cable for ethernet backhaul between two Eero mesh routers. I did tons of research (including Grok) and I came across LANshack.com. They have the thickest 23AWG wire in their custom CAT8 cable vs 26AWG on Amazon (lower number is thicker; 23AWG wire has roughly twice the cross-sectional area of 26AWG). Excellent price per foot, and this cable is thick! Very quick turnaround once you order from them. I am very pleased with LANshack and I will order from them again for future projects!
Daniel T.
Jan 07, 2026
Great company great items
Great company great items
Joseph Leone
Dec 23, 2025
The product was exactly as ordered
The product was exactly as ordered. The only criticism would be a real-time line on shipping and expected delivery.
D. L.
Apr 08, 2026
everything worked as expected
everything worked as expected. Nice pull sock set up.
customer
Feb 25, 2026
fast service and excellent product
fast service and excellent product
JC STRAND
Mar 30, 2026
Product was as ordered and delivered in…
Product was as ordered and delivered in a timely manner. Worked perfectly. Will use again in the future.
Brian Rich
Dec 30, 2025
Quick shipment
Quick shipment. custom quality cable!
Irwin Spector
Apr 04, 2026
They do what they say
They do what they say. No BS
gavin714
Apr 17, 2026
Great prices ++
Great prices, quality and delivery speed
thanks
george
George
Nov 25, 2025
Product was as advertised
Product was as advertised. Shipping was on timeJohn Olson
JO
Apr 02, 2026
Easily ordered exactly what I needed
Easily ordered exactly what I needed. Once I got a shipping label item was delivered quickly and was packaged nicely. Would order from here again.
customer
May 05, 2026
Superior product/ Superior service
It was particularly useful to me that I was updated regularly about the status of my orders. The products that I purchased were superaltive in every way and exceeded my expectations...
Dr. Craig Smestad
Read 1,438 reviews on
