ST-ST OM4 Fiber Patch Cable 40M - High-Speed Multimode

In this review the ST-ST OM4 fiber patch cable is evaluated for short-range, high-bandwidth network links; it is aimed at network engineers and IT teams who need reliable multimode fiber between racks, patch panels, and telecom equipment. The single biggest reason to buy is its use of genuine Corning OM4 glass with precision ceramic ferrules on ST connectors, which delivers low insertion loss and consistent 10Gb+ performance in data center and enterprise environments. Practical, tested, and straightforward, the cable is a workhorse for on-premise networking tasks.

Key Features

• OM4 Multimode: 50/125m OM4 fiber provides high modal bandwidth for sustained 10Gb, 40Gb, and short-range 100Gb links depending on distance.
• Corning Glass Core: The genuine Corning OM4 glass core helps maintain signal integrity and reduces attenuation on short-to-medium runs.
• ST-ST Connectors: Bayonet-style ST-ST connectors with ceramic ferrules ensure repeatable mating and low insertion loss in patch panel and bulkhead use.
• Reinforced Zip-Cord Jacket: The 2.0mm jacket construction improves flexibility for routing in trays and racks while resisting kinks during installation.
• Standards Tested: Inspected and tested to ANSI/TIA/EIA standards, offering predictable performance for professional deployments.
• Versatile Speeds: Rated modal bandwidth supports 1Gb up to 550m and 10Gb up to 300m, fitting common data center short-range needs.

Who It's For

The cable is well suited to data center technicians, telecom installers, and enterprise IT teams who need a dependable multimode patch cable for short-range links between switches, transceivers, and patch panels. Its construction and Corning glass make it particularly attractive where low insertion loss and repeatable connections matter during high-density rack builds.

It is less appropriate for long-haul singlemode links or environments that require field-installable connectors; those users should choose singlemode fiber or factory-terminated options designed for longer distances or on-site terminations.

Pros & Cons

Pros

• Solid 10Gb performance with OM4 glass core and ceramic ferrules for consistent signal delivery.
• Durable zip-cord jacket that eases routing and reduces the risk of kinking in tight pathways.
• Compliant testing to ANSI/TIA/EIA standards gives confidence in commercial deployments.

Cons

• ST connectors are less common than LC in modern high-density transceiver setups, so adapters or panel changes may be needed.

Specifications

Connector Type	ST-ST duplex
Fiber Type	OM4 multimode 50/125m
Length	40M (131.23ft)
Core Material	Corning OM4 glass
Ferrules	Ceramic ferrules
Jacket	Reinforced 2.0mm zip-cord
Standards	ANSI/TIA/EIA inspected and tested

Our Verdict

The ST-ST OM4 40M patch cable is a reliable, value-minded choice for short-range, high-speed networking in data centers and enterprise facilities. With Corning glass and ceramic ferrules it delivers low-loss, repeatable connections, making it a practical pick for technicians who need predictable 10Gb and 40Gb performance without unnecessary complexity.

Frequently Asked Questions

Will this cable support 10Gb Ethernet?
Yes. The OM4 rating supports 10Gb up to around 300m, so a 40M length is well within that capability.

Are the connectors suitable for patch panel use?
Yes. The ST-ST connectors with ceramic ferrules are designed for repeatable mating in patch panels and bulkhead installations.

Is this recommended for long-distance links?
No. This is a multimode OM4 patch cable optimized for short-range links; singlemode fiber is recommended for long-haul connections.