STL Launches World’s Slimmest 86F IBR Cable for U.S. Hyperscalers

Sterilite Technologies Inc. (STI), STL’s U.S. subsidiary, announced in a press release the launch of its Celesta Intermittent Bonded Ribbon (IBR) Cable, now the world’s slimmest 864-fiber cable designed for data centers, hyperscalers, and telecom operators in the U.S. The cable measures at 11.7 mm in diameter and is optimized for jetting in a 14mm inner diameter duct. STL reports a record jetting distance of roughly 4,700 ft (1,500+ m) in under 20 minutes.

The new cable employs bend-insensitive HD G.657.A2 200-micron fiber and industry-standard sheathing, ensuring smooth installation and high reliability in demanding environments. Designed to meet the demanding needs of hyperscalers, the Celesta IBR Cable supports rapid deployment and low-latency, high-capacity connections.

STL’s Celesta IBR Cable offers dense fiber packing, smaller diameter, and supports mass fusion splicing, making it ideally suited for data centers, cabinet connections, and outside plant applications. It is ICEA 122-744 and GR 20 compliant, and is compatible with 14/18 mm micro subduct installations.

Dr. Badri Gomatam, CTO, STL, commented on the cable, stating, “Our breakthrough Celesta IBR cable is a testament to STL’s commitment to advanced engineering and customer-centric innovation. By delivering industry-leading fibre density and bend performance in a remarkably slim design, we’re empowering hyperscalers and data centres to scale up efficiently and sustainably—laying the foundation for next-generation digital infrastructure.”