ST-ST Multimode OM3 & OM4 Ultra Fiber Cable
The iFiber Optix ST to ST Multimode OM3 and OM4 Ultra Fiber Cables are engineered to deliver fast, reliable data transmission for high-bandwidth applications in data centers, LANs, and enterprise environments.
Featuring Corning ClearCurve 50/125µm multimode fiber and ST bayonet connectors on both ends, both variants support 10G, 40G, and 100G Ethernet — with OM4 extending reach and bandwidth for more demanding deployments.
ST to ST Multimode OM3 Ultra Fiber Cable
The ST to ST Multimode OM3 Ultra Fiber Cable features ST bayonet connectors on both ends with 50/125µm OM3 multimode fiber. Its quarter-turn locking mechanism ensures secure, vibration-resistant connections across both terminations, supporting 10 Gbps up to 300 meters and 40/100 Gbps up to 100 meters for reliable high-speed networking.
A dependable choice for industrial networks, legacy enterprise environments, and institutional LANs built around ST-terminated infrastructure at both ends.
ST to ST Multimode OM4 Ultra Fiber Cable
The ST to ST Multimode OM4 Ultra Fiber Cable features ST bayonet connectors on both ends with 50/125µm OM4 multimode fiber. Supporting 10 Gbps up to 550 meters and 40/100 Gbps up to 150 meters, it delivers extended reach and higher bandwidth for ST-based networks that require more performance without changing connector infrastructure.
The preferred upgrade for industrial, institutional, and enterprise environments already standardized on ST connectivity that need to step up to higher data rates and longer distances.
OM3 vs OM4 — Side-by-Side Comparison
Both cables share the same connector type, fiber size, and core specifications. The key differences lie in maximum transmission distance and bandwidth capacity.
| Specification | OM3 | OM4 |
|---|---|---|
| Fiber Core / Cladding | 50 / 125µm | 50 / 125µm |
| 10G Ethernet Distance | Up to 300m | Up to 550m |
| 40/100G Ethernet Distance | Up to 100m | Up to 150m |
| Insertion Loss | < 0.3 dB | < 0.3 dB |
| Typical Insertion Loss | 0.2 dB | 0.2 dB |
| Mating Durability | < 0.2 dB (500 cycles) | < 0.2 dB (500 cycles) |
| Temperature Range | -40°C to 85°C | -40°C to 85°C |
| Available Cable Sizes | 2.0, 1.8, 1.6, 1.2 mm | 2.0, 1.8, 1.6, 1.2 mm |
| Part Number | I2350-A-XX-2J | I2550-A-XX-XJ |
Specification Drawing & Documentation
All iFiber Optix ST-ST OM3 and OM4 multimode assemblies are manufactured and tested to meet or exceed published optical and mechanical performance specifications.
Key Features
- High-Speed Data Transmission Both OM3 and OM4 support 10G, 40G, and 100G Ethernet. OM4 extends transmission distance significantly over OM3 for higher-demand environments.
- Optimized for Short-to-Medium Distances Designed for data centers, LANs, and HPC environments where high-speed performance over short to medium runs is the priority.
- Low Insertion Loss ST connectors on both ends are precision-terminated to deliver insertion loss below 0.3 dB, ensuring minimal signal degradation and consistent high-speed performance across the full link.
- Secure Bayonet Locking at Both Ends ST connectors on both terminations provide a reliable quarter-turn bayonet lock, delivering vibration-resistant, secure connections ideal for industrial environments, equipment rooms, and legacy ST infrastructure.
- Durable Construction Built to SPC GR-326 geometric requirements with high-quality materials for long-term reliability in mission-critical environments.
- Cost-Effective Performance OM3 and OM4 multimode fibers offer a cost-effective alternative to singlemode for short-to-medium distance applications without sacrificing speed.
Ideal Applications
ST-ST OM3 and OM4 multimode cables are purpose-built for environments fully standardized on ST connectivity — from legacy enterprise installations to active industrial and institutional networks.
Industrial Networks
ST's bayonet locking mechanism excels in industrial environments where vibration and physical stress demand a secure, twist-lock connection at both ends.
Enterprise Networks
Maintains full ST infrastructure in established corporate LANs, supporting high-speed upgrades without connector migration overhead.
Telecommunications
Supports reliable ST-to-ST patch connections in telecom equipment rooms, distribution frames, and central office environments.
Campus Networks
Connects ST-terminated building distribution panels and risers across campus backbones where the ST standard is already established.
Government & Institutional
Government and educational facilities with long-lived ST infrastructure can upgrade fiber performance while keeping their existing connector standard.
Custom Fiber Builds
Available in custom lengths and ruggedized configurations for specialized ST-to-ST deployments in demanding environments.
OM3 or OM4 — How to Choose
Both cables deliver excellent performance. Use these factors to determine which fiber type best fits your network requirements.
Consider Transmission Distance
Choose OM4 if your runs exceed 100m at 40/100G or 300m at 10G — otherwise OM3 covers most standard deployments.
Plan for Future Growth
OM4 offers extended reach and higher bandwidth headroom, making it the better choice for networks expected to scale.
Evaluate Network Density
Confirm that both ends of your link use ST ports. The ST quarter-turn bayonet lock is standard across a wide range of legacy switches, media converters, and patch panels.
Account for Environment
For outdoor or harsh conditions, ruggedized jacket options are available for both OM3 and OM4 variants.
Why Choose iFiber Optix?
- Quality Assurance Each cable is built and tested for consistent optical performance before shipment.
- Custom Configurations Lengths, jacket types, and connector options can be tailored to your exact project requirements.
- Reliable Support Our team can help you choose between OM3 and OM4 and spec the right solution for your environment.
- Built for Critical Deployments Designed to deliver dependable high-speed connectivity in demanding data center and enterprise environments.
Request Information
Ready to spec ST-ST OM3 or OM4 multimode cables for your next deployment? Our team can help with custom lengths, jacket selection, and bulk pricing.