McKay Brothers Partners With Relativity on Fiber
The partnership brings Relativity Networks' hollow core fiber technology to McKay Brothers' networks, starting with financial market locations in New Jersey.
Updated on Nov. 5, 2026 in Data Centers
McKay Brothers has signed a partnership with Relativity Networks to develop hollow core fiber networks. The initial focus will be key financial market locations in New Jersey.
Why it matters
McKay Brothers chose Relativity because it offers the best technical solution it has evaluated for the networks it wants to build. The move signals growing commercial interest in hollow core fiber for performance-critical routes in New Jersey's financial corridors.
Relativity claims its ChronoCore hollow core fiber transmits data roughly 47 percent faster than conventional glass fiber, a figure reported by the company rather than independently verified. McKay Brothers will offer dedicated dark-fiber-pair indefeasible rights of use and managed connectivity services ranging from 10Gbps to 400Gbps.
The players
McKay Brothers
McKay Brothers is a financial network provider whose New Jersey financial market connectivity is the initial focus of the partnership.
Relativity Networks
Relativity Networks is a Florida-based company that specializes in developing hollow core fiber technology, including its ChronoCore product.
The details
ChronoCore uses an air-filled center channel surrounded by a ring of glass tubes, and the cable is produced at Prysmian's facility in Eindhoven, Netherlands, and cabled at its plant in Claremont, North Carolina. Couplers, fiber characterization, and installation training are handled in Orlando, Florida, where Relativity is based. Colt Technology Services previously used the technology, and McKay Brothers is described as the latest buyer.
Timeline
November 5, 2026: McKay Brothers and Relativity Networks announce the partnership.
July: Relativity and Prysmian claim production of the highest-density hollow core fiber cable.
The Tech Race
The deal extends the commercial reach of ChronoCore hollow core fiber, which Colt Technology Services previously adopted, positioning the technology against conventional glass fiber for latency-sensitive routes. Hollow core fiber is not expected to replace conventional fiber broadly, but is being adopted on performance-critical links where speed gains matter most.
For users of financial services in New Jersey, faster data transit could reduce latency on critical trading links once the networks are live. Businesses can evaluate managed connectivity options ranging from 10Gbps to 400Gbps from McKay Brothers.
The takeaway
Hollow core fiber is moving from pilot deployments into commercial networks, and New Jersey's financial corridors are among its first targets. Readers tracking data center connectivity should watch whether the speed claims hold up in live deployments.
Further reading
Explore more on Data Centers coverage for New Jersey's network infrastructure trends.
Source note: This article includes information reported by Datacenterdynamics.
